Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
440
FNUS55 KRIW 191941
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
141 PM MDT Sat Jul 19 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
The tail end of a weather disturbance moving east across the
Northern Rockies will fuel isolated showers and a few thunderstorms
until very early Saturday evening. Conditions dry out after that,
with only a few showers and storms over far northern Zone 140 Sunday
afternoon. Daytime highs warm and relative humidity drops Sunday,
while afternoon westerly wind blows 15 to 25 mph.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
***Fire Weather Watch 12 PM to 8 PM Sunday for Zone 289***
Two weak weather disturbances cross the region Saturday afternoon
and fuel isolated showers and a few thunderstorms until very early
Saturday evening. Conditions dry out after that, with only a few
showers and storms over far northern Zone 286 Sunday afternoon.
Daytime highs warm and relative humidity drops Sunday, while
afternoon westerly wind blows 15 to 25 mph in the mountains and
Zone 289. The wind may also lead to near-critical fire weather
conditions late in the day across portions of Zone 283.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
***Fire Weather Watch 12 PM to 8 PM Sunday for Zones 278, 279, 280
and 289***
Isolated showers and a few thunderstorms continue into very early
Saturday evening, producing gusty outflow wind as they track east.
Conditions dry out after that, with only a few showers and storms
moving off the Uinta Mountains into Zone 279 Sunday afternoon.
Warmer daytime highs Sunday, along with low relative humidity and
gusty westerly wind 15 to 25 mph, could lead to critical fire
weather conditions between 12 PM and 8 PM across portions of
southwest and central Wyoming.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-202145-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
141 PM MDT Sat Jul 19 2025
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....85-90.
24 hr trend......2 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......7 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......11200-13200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......1 degree cooler.
Max humidity........43-49 percent.
24 hr trend......25 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4800-6800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......3 degrees warmer.
Min humidity........10-16 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......4000-6000 ft agl until 1200, then 12000-14000
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......Unchanged.
Max humidity........40-46 percent.
24 hr trend......3 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......6400-8400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......1 degree warmer.
Min humidity........13-19 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 11400-13000
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows around 60. Southwest winds
around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
Northeast winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
South winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 50s.
Highs in the lower 90s.
$$
WYZ283-202145-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....83-88.
24 hr trend......2 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......3 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......10800-12600 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......Unchanged.
Max humidity........34-40 percent.
24 hr trend......25 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......2 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 11600-13600
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......1 degree warmer.
Max humidity........37-43 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......6600-8600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....86-91.
24 hr trend......Unchanged.
Min humidity........17-23 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 1500, then around 20 mph
with gusts to around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows 54 to 59. Highs in
the upper 80s. West winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows 54 to 59. Highs 86 to 91. West
winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90.
.SATURDAY...Mostly sunny. Highs in the lower 90s.
$$
WYZ285-202145-
South Bighorn Mountains-
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms through the day. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....79-84.
24 hr trend......2 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......9000-11000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....55-60.
24 hr trend......Unchanged.
Max humidity........36-42 percent.
24 hr trend......25 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......1 degree warmer.
Min humidity........13-19 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 9600-11600 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......1 degree warmer.
Max humidity........33-39 percent.
24 hr trend......4 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....82-87.
24 hr trend......2 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 53 to 58. Highs around 80.
Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s.
Northeast winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.SATURDAY...Mostly sunny. Highs in the mid 80s.
$$
WYZ281-202145-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....84-89.
24 hr trend......4 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......11 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......11000-13000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......1 degree cooler.
Max humidity........54-60 percent.
24 hr trend......15 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......1 degree warmer.
Min humidity........17-23 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 8800-10800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......Unchanged.
Max humidity........48-54 percent.
24 hr trend......7 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
west around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....86-91.
24 hr trend......3 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. West winds
around 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the mid 80s. North winds around
10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Northeast winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
South winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
.SATURDAY...Mostly sunny. Highs in the lower 90s.
$$
WYZ282-202145-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....81-86.
24 hr trend......3 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......10000-12000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....53-58.
24 hr trend......1 degree cooler.
Max humidity........44-50 percent.
24 hr trend......23 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......2 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......Unchanged.
Max humidity........46-52 percent.
24 hr trend......4 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......6200-8200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....85-90.
24 hr trend......2 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds
around 10 mph.
.TUESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the mid 80s. Winds generally less
than 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 90. Winds
generally less than 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 90s.
.SATURDAY...Mostly sunny. Highs in the lower 90s.
$$
WYZ275-202145-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......7 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......11600-13600 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....52-57.
24 hr trend......1 degree cooler.
Max humidity........52-58 percent.
24 hr trend......11 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......Unchanged.
Min humidity........15-21 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......Unchanged.
Max humidity........51-57 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......5400-7400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......Unchanged.
Min humidity........18-24 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the upper 50s. Northwest
winds around 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows 55 to 60. Highs 84 to 89. South
winds around 10 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s.
.SATURDAY...Partly cloudy. Highs in the lower 90s.
$$
WYZ276-202145-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....82-87.
24 hr trend......4 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......11 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
35 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 30 mph.
Mixing Height.......10800-12800 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......1 degree cooler.
Max humidity........46-52 percent.
24 hr trend......16 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....82-87.
24 hr trend......1 degree warmer.
Min humidity........16-22 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 30
mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......Unchanged.
Max humidity........47-53 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......5000-7000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of showers in
the afternoon. Chance of thunderstorms late in
the afternoon. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Max temperature.....80-85.
24 hr trend......2 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph until 1500, then southwest. Gusts
up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Lows in the mid 50s. West winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 80. Northwest
winds around 10 mph.
.WEDNESDAY...Mostly clear with chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s. North
winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 80s.
$$
WYZ287-202145-
Owl Creek Mountains-
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....80-85.
24 hr trend......3 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......9 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......10400-12400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......1 degree warmer.
Max humidity........31-37 percent.
24 hr trend......27 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......1 degree warmer.
Min humidity........12-18 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 1500, then west around 20
mph with gusts to around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......3000-5000 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......1 degree cooler.
Max humidity........34-40 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 20 mph until 2400, then around 10
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....80-85.
24 hr trend......Unchanged.
Min humidity........20-26 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds
around 10 mph.
.TUESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. West
winds around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the mid 50s. Highs around 80. Northwest winds around
10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
.SATURDAY...Partly cloudy. Highs in the mid 80s.
$$
WYZ286-202145-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......1 degree cooler.
Min humidity........21-27 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Breezy. West winds around 25 mph with gusts to
around 40 mph.
Ridge top winds.....West around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 35 mph.
Mixing Height.......8600-10000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....48-53.
24 hr trend......Unchanged.
Max humidity........46-52 percent.
24 hr trend......25 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 2400, then around 10 mph with gusts
to around 25 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then around 15
mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......1 degree warmer.
Min humidity........18-24 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 35
mph.
Mixing Height.......3400-5400 ft agl until 1200, then 8800-10800 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......3 degrees warmer.
Max humidity........38-44 percent.
24 hr trend......6 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 15 to 20 mph with gusts to around 35
mph until 2400, then around 10 mph and gusty.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph until 2400, then southwest
around 15 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....72-77.
24 hr trend......Unchanged.
Min humidity........26-32 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows around 50. West winds around
10 mph.
.TUESDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 70. West winds
around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and thunderstorms.
Lows in the upper 40s. Highs in the lower 70s. West winds around
10 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s. West winds
around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ140-202145-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......2 degrees cooler.
Min humidity........21-27 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 20 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 35 mph.
Mixing Height.......9000-10000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....43-48.
24 hr trend......Unchanged.
Max humidity........59-65 percent.
24 hr trend......26 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 2400, then around
10 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......1 degree warmer.
Min humidity........23-29 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds
southwest around 20 mph after 1500. Gusts up to
30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
35 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......4 degrees warmer.
Max humidity........48-54 percent.
24 hr trend......12 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 2400, then south
around 10 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......1 degree warmer.
Min humidity........26-32 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 30 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 40s. Winds
generally less than 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs 71 to 76.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ415-202145-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....73-78.
24 hr trend......2 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds around 20 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 30 mph.
Mixing Height.......8800-10400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........49-55 percent.
24 hr trend......34 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 20 mph until 2400, then around
10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......2 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 30 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......3 degrees warmer.
Max humidity........48-54 percent.
24 hr trend......1 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 15 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then south
around 10 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........29-35 percent.
24 hr trend......6 percent wetter.
20-foot winds.......South winds around 10 mph until 1200, then
southwest. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Winds
generally less than 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. Southwest winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs 72 to 77.
South winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs in the upper 70s.
$$
WYZ416-202145-
West Wind River Mountains/East Zone Bridger Teton NF-
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening, then chance
of showers and thunderstorms early in the
evening. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 30 percent.
Chance of thunder...20 percent.
Max temperature.....69-74.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......2 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.5 percent.
Transport winds.....West around 25 mph.
Mixing Height.......8200-9200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear. Slight chance of showers early in
the evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......2 degrees warmer.
Max humidity........42-48 percent.
24 hr trend......40 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......9 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 30
mph.
Mixing Height.......3000-5000 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......3 degrees warmer.
Max humidity........42-48 percent.
24 hr trend......Unchanged.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 15 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then south
around 10 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....69-74.
24 hr trend......1 degree cooler.
Min humidity........24-30 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
around 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 9000-10800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest
winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs around 70.
West winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the lower 70s. West
winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the lower 70s. Winds
generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the mid 40s.
Highs 72 to 77.
$$
WYZ288-202145-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........21-27 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds around 20 mph with gusts to around
30 mph.
Ridge top winds.....West around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......8400-9800 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......1 degree warmer.
Max humidity........34-40 percent.
24 hr trend......29 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......2 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......7 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......2 degrees warmer.
Max humidity........34-40 percent.
24 hr trend......Unchanged.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 35 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........22-28 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then around
25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s. West winds
around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 50. Highs in the mid 70s. West winds
around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. West
winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
$$
WYZ414-202145-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......1 degree cooler.
Min humidity........23-29 percent.
24 hr trend......3 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8600-10200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......2 degrees warmer.
Max humidity........51-57 percent.
24 hr trend......40 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......2 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 30 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......4 degrees warmer.
Max humidity........52-58 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph until 2400, then south and gusty.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......5000-7000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........21-27 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 10200-12200
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds
around 10 mph.
.TUESDAY THROUGH THURSDAY...Mostly clear. Lows in the upper 40s.
Highs 73 to 78. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs in the upper 70s.
$$
WYZ278-279-202145-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Big Piney, Farson, Pinedale, Green River,
Rock Springs, and Wamsutter
141 PM MDT Sat Jul 19 2025
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......1 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8000-10000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......Unchanged.
Max humidity........47-53 percent.
24 hr trend......29 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......4 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 12000-14000
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......2 degrees warmer.
Max humidity........47-53 percent.
24 hr trend......3 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......5400-7400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......2 degrees cooler.
Min humidity........24-30 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds
southwest around 20 mph with gusts to around 30
mph after 1500.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows 51 to 56. Highs in
the lower 80s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 80s.
West winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s. Winds generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 80s.
$$
WYZ277-202145-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......2 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......10200-11600 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree warmer.
Max humidity........47-53 percent.
24 hr trend......32 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......3 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......4000-6000 ft agl until 1200, then 11600-13600
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......2 degrees warmer.
Max humidity........43-49 percent.
24 hr trend......3 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph until 2400, then southwest around 10
mph with gusts to around 15 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......1 degree cooler.
Min humidity........14-20 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then around
25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 11800-13400
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH THURSDAY...Mostly clear. Lows 48 to 53. Highs
79 to 84. West winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs in the mid 80s.
$$
WYZ289-202145-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
141 PM MDT Sat Jul 19 2025
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms through the day. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....79-84.
24 hr trend......Unchanged.
Min humidity........16-22 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......9400-11200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......Unchanged.
Max humidity........38-44 percent.
24 hr trend......25 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 25 mph
until 2400, then 15 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......3 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 12000-14000
ft agl.
Smoke dispersal.....Good to very good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......2 degrees warmer.
Max humidity........34-40 percent.
24 hr trend......3 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......6400-8400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Very good to excellent until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...10 percent.
Max temperature.....82-87.
24 hr trend......1 degree cooler.
Min humidity........15-21 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....Southwest around 15 mph until 1200, then around
25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows 54 to 59. Highs in
the mid 80s. West winds around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 53 to 58. Highs in the mid 80s.
Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the mid 50s.
Highs 85 to 90.
$$
WYZ300-202145-
Casper Mountain-
141 PM MDT Sat Jul 19 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....78-83.
24 hr trend......Unchanged.
Min humidity........19-25 percent.
24 hr trend......2 percent drier.
20-foot winds.......West winds around 15 mph with higher gusts.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......8400-10400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...10 percent.
Min temperature.....56-61.
24 hr trend......Unchanged.
Max humidity........42-48 percent.
24 hr trend......28 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......3 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......8 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......3800-5800 ft agl until 1200, then 11200-13200
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......3 degrees warmer.
Max humidity........32-38 percent.
24 hr trend......11 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...10 percent.
Max temperature.....82-87.
24 hr trend......Unchanged.
Min humidity........18-24 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows 55 to 60. Highs in
the lower 80s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 50s. Highs around 80. Winds
generally less than 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Winds
generally less than 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.SATURDAY...Mostly sunny. Highs in the mid 80s.
$$