Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
991
FNUS75 KRIW 291148
FWSRIW
Spot Forecast for Rand Creek...USFS
National Weather Service Riverton WY
548 AM MDT Tue Sep 29 2026
Forecast is based on forecast start time of 0700 MDT on September 29.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
High pressure will bring a dry day today. The sky will be mostly clear
with some mid to high level clouds at times, especially in the afternoon.
Wind will be largely west to northwest with occasional gusts to around 15
mph, but wind should average 10 mph or less through the day. Mixing and
smoke dispersal should become good after 1300 today. Tomorrow will be
similar day with similar wind. A weak cold front approaching on
Wednesday may bring breezier conditions on Thursday into Friday.
...Thunderstorms imply strong gusty and erratic winds...
.REST OF TODAY...
Sky/weather.........Mostly sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 59.
Min humidity........29 percent.
Wind (20 ft)........West winds 8 to 10 mph until 1700, then
northwest at similar speeds. Gusts up to
18 mph.
Ridgetop wind.......Northwest around 15 mph.
Mixing height.......1500 ft AGL until 1100. 5000 ft AGL after 1300.
Transport winds.....West 14 to 17 mph.
Smoke dispersal.....Poor until 1000, becoming good after 1300.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 5 0 0 5 10 15 20 30 30 25
Weather cov.....
Weather type....
Tstm cov........
CWR.............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
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0
Temp............43 41 44 48 51 54 56 57 58 58 58
RH..............49 64 58 50 41 35 32 30 29 29 31
20 FT wind dir..W W W W W W NW NW NW NW NW
20 FT wind spd..8 9 10 9 8 8 8 8 8 8 7
20 FT wind gust.13 14 18 16 14 14 14 13 13 13 13
Ridge wind dir..W W W W W W NW NW NW NW N
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 1.0 1.5 2.5 3.5 4.5 5.0 5.0 5.0 4.5
Transp wind dir.W W W W W W W W W W W
Transp wind spd.15 16 17 16 15 15 15 15 15 15 14
SDspl kt-ft/10007 8 11 24 36 46 56 63 68 67 56
.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Min temperature.....Around 41.
Max humidity........53 percent.
Wind (20 ft)........Light winds until 2000, then northeast around
9 mph until 2200, then west 8 to 10 mph. Gusts
up to 20 mph.
Ridgetop wind.......North around 15 mph until 2000, then northeast
until 2200, then west.
Mixing height.......3500 ft AGL until 1900, then 500 ft AGL.
Transport winds.....West around 13 mph until 1900, then east until
2000, then west 14 to 17 mph.
Smoke dispersal.....Poor.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15 10 10 10 10 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............56 53 52 48 46 45 45 45 44 43 43 42
RH..............34 40 44 46 48 50 51 50 51 52 52 53
20 FT wind dir..N N NE NE W W W W W W W W
20 FT wind spd..6 6 7 9 10 10 10 10 9 9 9 8
20 FT wind gust.10 10 11 14 16 16 14 14 14 14 13 12
Ridge wind dir..N N E NE SW W W W W W W W
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...3.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W E W W SW W W W W W W W
Transp wind spd.13 13 14 16 17 17 17 17 16 16 16 15
SDspl kt-ft/100037 8 6 7 8 7 8 8 7 8 8 7
.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 58.
Min humidity........34 percent.
Wind (20 ft)........West winds 7 to 8 mph until 1000, then northeast
8 to 9 mph. Gusts up to 15 mph.
Ridgetop wind.......West 10 to 15 mph until 1100, then east to
northeast at similar speeds.
Mixing height.......2000 ft AGL until 1100. 7000 ft AGL after 1300.
Transport winds.....West 9 to 16 mph.
Smoke dispersal.....Poor until 1000. Good after 1300.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 15 10 5 5 5 5 15 15 20 20 20
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............42 42 41 45 49 52 55 57 57 58 56 56
RH..............53 51 51 46 43 39 37 37 35 34 36 39
20 FT wind dir..W W W W W NE NE E E NE E E
20 FT wind spd..7 7 8 8 5 4 5 6 6 8 9 9
20 FT wind gust.12 12 13 14 10 10 10 10 12 14 14 14
Ridge wind dir..W W W W W E NE E E NE E E
Ridge wind spd..15 15 15 15 10 10 10 10 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 0.5 2.0 3.5 5.0 6.0 7.0 6.0 6.5 5.5
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.14 14 15 15 10 9 10 13 14 15 16 16
SDspl kt-ft/10007 6 5 9 17 28 43 65 82 75 94 74
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
Mostly clear. Lows in the upper 30s. Highs in the upper 50s.
Light winds.
.FRIDAY...
Partly cloudy. Lows around 40. Highs around 60. West winds around
7 mph.
.SATURDAY...
Partly cloudy. Lows in the lower 40s. Highs in the mid 50s. West
winds around 7 mph.
$$
Forecaster...Hattings
Requested by...Peter Freire
Type of request...WILDFIRE
.TAG 2622568.4/RIW
.DELDT 09/29/26
.FormatterVersion 2.0.0
.EMAIL travis.l.clark@usda.gov,peter.freire@usda.gov