143
FNUS75 KRIW 181853
FWSRIW

Spot Forecast for BULL LAKE...WY-WRA
National Weather Service Riverton WY
1253 PM MDT Mon Aug 18 2025

Forecast is based on forecast start time of 1300 MDT on August 18.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Daytime cumulus will continue to develop off the Wind River range
through the afternoon, moving to the northeast. These clouds may
briefly produce very light rain, but no wetting rainfall expected.
Lightning remains a possibility, but the chances today remain
low. Winds will remain light through the day, generally from the
southeast under 10 mph.

Thursday will be mostly sunny through the day, with no chance for
rainfall or lightning expected. Winds will start the day light and
downslope/down valley, before turning more from the southeast
after 1200. Winds speeds tomorrow will also remain light under 10
mph. Temperatures will reach the mid 80s during the day, allowing
humidity levels to fall to 11 to 14 percent through the
afternoon.

...Thunderstorms imply strong gusty and erratic winds...

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...6 percent.
Max temperature.....Around 79.
Min humidity........17 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......Southwest around 10 mph.
Mixing height.......13000 ft AGL.
Transport winds.....Southwest 10 to 12 mph.
Smoke dispersal.....Very good.

TIME (MDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........15  15  20  25  35
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0
Chc of pcpn (%).0   0   10  0   0
Chc of thdr (%).0   10  10  0   0
Temp............75  76  77  76  77
RH..............26  22  21  22  20
20 FT wind dir..S   SW  SW  SW  SW
20 FT wind spd..3   5   2   5   5
20 FT wind gust.4   6       6   6
Ridge wind dir..S   SW  SW  SW  SW
Ridge wind spd..10  10  5   10  10
Mix hgt (kft)...13  13  13  13  12
Transp wind dir.SW  SW  SW  SW  W
Transp wind spd.12  10  12  10  12
SDspl kt-ft/1000128 117 129 117 118

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 59.
Max humidity........29 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......West 10 to 15 mph.
Mixing height.......10500 ft AGL until 1900. 1000 ft AGL after
                    2000.
Transport winds.....Southwest 10 to 14 mph.
Smoke dispersal.....Very good early in the evening decreasing to
                    good until 2000, then poor.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........40  25  15  15  15  10  10  10  10  10  10  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............77  75  72  68  67  65  65  64  63  62  60  60
RH..............20  22  22  24  25  25  24  25  26  26  28  29
20 FT wind dir..W   W   W   SW  SW  W   W   W   W   W   W   W
20 FT wind spd..6   5   5   6   6   7   7   7   6   6   6   6
20 FT wind gust.7   6   6   7   10  10  10  10  10  10  10  7
Ridge wind dir..W   W   W   SW  SW  W   W   W   W   W   W   W
Ridge wind spd..10  10  10  10  15  15  15  15  15  15  15  10
Mix hgt (kft)...11  7.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Transp wind dir.SW  SW  S   SW  SW  SW  W   W   W   W   W   W
Transp wind spd.12  10  10  12  13  14  14  14  13  13  13  12
SDspl kt-ft/1000104 66  9   9   10  11  11  11  10  10  10  9

.TUESDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 84.
Min humidity........12 percent.
Wind (20 ft)........Light winds until 1400, then east 7 to 8 mph
                    with gusts to around 14 mph.
Ridgetop wind.......West around 10 mph until 1100, then southeast.
Mixing height.......1500 ft AGL until 1000. 12000 ft AGL after
                    1400.
Transport winds.....Southwest 9 to 15 mph.
Smoke dispersal.....Poor until 1000. Increasing to excellent in
                    the afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  15  10  5   0   5   10  5   5   5   5   10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............60  59  64  68  73  76  79  80  82  83  83  83
RH..............29  29  27  25  22  19  17  15  14  13  12  12
20 FT wind dir..W   W   W   W   SW  SE  E   E   E   E   E   SE
20 FT wind spd..5   5   4   4   4   5   6   6   7   8   8   7
20 FT wind gust.6   6   6   6   6   8   10  12  13  14  14  13
Ridge wind dir..W   W   W   W   SW  SE  E   E   E   E   E   SE
Ridge wind spd..10  10  10  10  10  10  10  15  15  15  15  15
Mix hgt (kft)...1.0 1.0 1.0 1.5 3.0 5.5 8.0 9.5 11  12  12  12
Transp wind dir.SW  W   SW  W   S   S   S   S   S   S   S   S
Transp wind spd.10  10  9   9   9   10  12  13  14  15  15  14
SDspl kt-ft/10008   8   7   11  23  50  82  103 127 153 150 136

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...
Mostly clear. Lows in the lower 60s. Highs in the mid 80s.
Southwest winds around 7 mph.
.THURSDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the lower 60s. Highs in the lower 80s. West winds around
8 mph.
.FRIDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the mid 50s. Highs in the upper 70s. Light winds.

$$
Forecaster...Straub
Requested by...Cody Dispatch
Type of request...WILDFIRE
.TAG 2520148.0/RIW
.DELDT 08/18/25
.FormatterVersion 2.0.0
.EMAIL mturnerdunn@yahoo.com,wycdc@firenet.gov