Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
746
FNUS75 KRIW 241326
FWSRIW
Spot Forecast for BEAR...USFWS
National Weather Service Riverton WY
726 AM MDT Mon Aug 24 2026
Forecast is based on forecast start time of 0800 MDT on August 24.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Expect light west to northwest winds through 1100L with occasional
breezes around 10 mph. Around 1100L, west to northwest winds begin to
increase with sustained winds 12 to 15 mph and gusts up to 25 mph.
Anticipate these winds through the afternoon, before diminishing between
1900L and 2000L and becoming a light north wind overnight. Scattered showers
and thunderstorms are possible at the site location from 1300L until 1900L
today. Any showers or thunderstorms will be capable of gusty outflows of
40 to 60 mph, frequent lightning, and heavy rainfall. Isolated light rain
showers are possible overnight through about 0100L.
...Thunderstorms imply strong gusty and erratic winds...
.TODAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of showers
and thunderstorms in the afternoon.
CWR.................5 percent.
Chance of pcpn......30 percent.
Chance of thunder...25 percent.
Max temperature.....Around 70.
Min humidity........29-33 percent.
Wind (20 ft)........West winds around 10 mph until 1000, then
west 10 to 12 mph with gusts to around 20 mph.
Gusty and erratic winds expected near
thunderstorms in the afternoon.
Ridgetop wind.......West 10 to 15 mph until 1300, then 15 to 20
mph.
Mixing height.......1500 ft AGL until 1000, then increasing to
around 9000 ft AGL around 1300, then decreasing
starting around 1600.
Transport winds.....West 10 to 20 mph until 1200, then 15 to 25 mph.
Smoke dispersal.....Poor until 1000, increasing to excellent around
1200, the decreasing after 1600.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40 35 35 50 40 50 55 55 55 60
Weather cov..... SCH CHC CHC CHC SCH SCH
Weather type.... RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH CHC SCH SCH
CWR.............0 0 0 0 10 10 10 10 10 10
Chc of pcpn (%).0 0 0 10 10 30 30 30 20 20
Chc of thdr (%).0 0 0 0 10 20 20 30 20 20
Temp............55 60 66 67 68 68 67 69 67 67
RH..............52 46 47 40 36 36 35 33 33 34
20 FT wind dir..NW W W W W W W W NW W
20 FT wind spd..4 6 7 9 10 11 11 11 9 8
20 FT wind gust.10 13 14 18 19 19 18 18 17 17
Ridge wind dir..NW W W W W W W W NW W
Ridge wind spd..10 10 15 15 15 20 20 20 15 15
Mix hgt (kft)...0.5 1.5 3.0 5.0 7.0 8.5 9.0 8.5 6.5 6.5
Transp wind dir.W W W W W W W W W W
Transp wind spd.9 13 16 18 21 22 21 21 18 17
SDspl kt-ft/10005 16 43 83 127 158 158 151 104 97
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70 percent). Slight chance of
showers and thunderstorms in the evening.
CWR.................5 percent.
Chance of pcpn......20 percent.
Chance of thunder...15 percent.
Min temperature.....Around 38.
Max humidity........80-84 percent.
Wind (20 ft)........West winds around 10 mph with gusts to around 15
mph until 2000, then north around 8 mph with gusts
to around 15 mph until 0100, then light north winds
around 5 mph. Gusty and erratic winds expected near
thunderstorms early in the evening.
Ridgetop wind.......Northwest 10 to 15 mph until 0100, then north.
Mixing height.......5000 ft AGL until 1900. 500 ft AGL after 2000.
Transport winds.....Northwest 10 to 20 mph until 0200, then around 10
mph.
Smoke dispersal.....Good until 1900. Poor after 2000.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........75 65 65 60 55 70 65 70 65 60 60 65
Weather cov.....SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW
Tstm cov........SCH SCH SCH
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).20 10 10 20 10 20 20 10 10 10 0 0
Chc of thdr (%).20 10 10 10 10 10 10 10 10 0 0 0
Temp............65 62 57 52 49 47 45 44 43 43 40 40
RH..............36 41 50 59 66 71 73 79 79 79 83 85
20 FT wind dir..W W SW NW NW N N N N N N N
20 FT wind spd..8 6 5 3 3 8 5 5 4 4 4 4
20 FT wind gust.14 12 8 7 10 14 14 11 7 7 7 6
Ridge wind dir..W W SW NW NW N N N N N N N
Ridge wind spd..15 15 10 10 10 15 10 10 10 10 10 10
Mix hgt (kft)...5.0 2.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W W W NW NW NW NW N N N NW NW
Transp wind spd.17 13 10 8 8 15 12 10 9 9 9 9
SDspl kt-ft/100073 27 5 4 4 7 6 5 5 5 5 5
.TUESDAY...
Sky/weather.........Mostly sunny (25-35 percent). Chance of showers
and thunderstorms in the afternoon.
CWR.................5 percent.
Chance of pcpn......50 percent.
Chance of thunder...35 percent.
Max temperature.....Around 68.
Min humidity........30-34 percent.
Wind (20 ft)........Light north winds around 5 mph until 1100, then
west around 10 mph with gusts 15 to 20 mph. Gusty
and erratic winds expected near thunderstorms in
the afternoon.
Ridgetop wind.......North around 10 mph until 0800, then light
until 1000, then west 10 to 15 mph.
Mixing height.......1500 ft AGL until 1000, increasing to around 9000 ft
AGL around 1300, then decreasing.
Transport winds.....Northwest around 10 mph until 1000, then west 10 to
15 mph.
Smoke dispersal.....Poor until 1100, increasing to very good around 1200,
then decreasing after 1600.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50 40 35 5 5 5 15 25 45 45 40 25
Weather cov..... CHC CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW
Tstm cov........ CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
Chc of pcpn (%).0 0 0 0 0 0 50 50 50 50 50 50
Chc of thdr (%).0 0 0 0 0 0 30 30 30 30 30 30
Temp............40 39 45 52 60 63 65 66 66 67 66 66
RH..............83 86 75 61 48 42 39 39 38 34 36 37
20 FT wind dir..N N N W W SW W W W W W W
20 FT wind spd..4 3 2 2 3 5 6 7 7 7 7 6
20 FT wind gust.6 6 5 5 7 10 13 14 14 14 14 14
Ridge wind dir..N N N W W SW W W W W W W
Ridge wind spd..10 10 5 5 10 10 15 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 1.5 3.5 6.0 8.0 9.0 7.0 7.5 7.5 7.0
Transp wind dir.N NW NW NW W W W W W W W W
Transp wind spd.9 9 8 8 9 12 13 16 14 15 16 16
SDspl kt-ft/10005 5 5 11 26 59 85 126 83 100 107 95
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the upper 30s. Highs around 70. West winds around 10 mph with
afternoon gusts 15 to 20 mph.
.THURSDAY...
Mostly cloudy. Chance of showers and thunderstorms. Lows in the
upper 30s. Highs around 70. West-northwest winds around 10 mph
with afternoon gusts around 20 mph.
.FRIDAY...
Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 60s.
West winds 10 to 15 mph with gusts around 25 mph.
$$
Forecaster...Wittmann
Requested by...BLAKE DAVISON
Type of request...WILDFIRE
.TAG 2620300.1/RIW
.DELDT 08/24/26
.FormatterVersion 2.0.0
.EMAIL blake.davison@usda.gov,roseberrynicholas@gmail.com,wycdc@firenet.gov