Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
950
FNUS75 KRIW 301138
FWSRIW
Spot Forecast for Rand Creek...USFS
National Weather Service Riverton WY
538 AM MDT Wed Sep 30 2026
Forecast is based on forecast start time of 0700 MDT on September 30.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
High pressure will bring a dry and mild day today. Wind will be mainly
under 10 mph, although occasional gusts to 15 to 18 mph will be
possible. Smoke dispersal will be poor until 1000, before gradually
becoming good by 1400. A weak cold front will pass by to the north
tomorrow. It will being more clouds and somewhat cooler temperatures.
A stray shower can`t be ruled out in the afternoon but the chance
is only around 5 percent. Mainly dry weather is then expected from
Friday into the weekend.
...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...1 percent.
Max temperature.....Around 61.
Min humidity........29 percent.
Wind (20 ft)........West winds around 8 mph until 1200, then northeast
around 7 mph. Gusts up to 16 mph.
Ridgetop wind.......West 10 to 15 mph until 1300, then north.
Mixing height.......2000 ft AGL until 1100. 6000 ft AGL after 1400.
Transport winds.....West 9 to 15 mph until 1700, then north around
13 mph.
Smoke dispersal.....Poor until 1000, becoming good after 1400.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 5 0 0 5 5 10 5 10 20 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 43 46 50 53 57 58 60 60 59 58
RH..............52 52 46 44 40 36 34 32 30 32 33
20 FT wind dir..W W W W W W N NE NE NE NE
20 FT wind spd..8 8 8 6 4 4 5 6 7 7 6
20 FT wind gust.13 14 16 11 10 10 10 11 13 13 14
Ridge wind dir..W W W W NW NW N N NE NE NE
Ridge wind spd..15 15 15 10 10 10 10 10 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 2.0 3.5 4.5 5.0 5.5 6.0 5.5 4.5
Transp wind dir.W W W W W W W W NW NW N
Transp wind spd.15 15 15 12 9 9 10 13 14 14 13
SDspl kt-ft/10007 7 9 21 27 35 45 63 71 66 50
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...2 percent.
Min temperature.....Around 38.
Max humidity........69 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......Southeast 10 to 15 mph until 0100. West after
0300.
Mixing height.......3000 ft AGL until 1900, then 500 ft AGL.
Transport winds.....East 8 to 13 mph until 2400, then southwest
until 0200, then around 9 mph.
Smoke dispersal.....Poor.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........30 35 45 45 40 30 20 10 10 10 20 25
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 52 49 47 45 44 43 43 42 40 40 39
RH..............38 46 51 55 57 61 63 62 65 67 67 68
20 FT wind dir..E E E SE SE SE SE S SW W W SW
20 FT wind spd..6 6 5 4 4 3 3 3 4 4 4 4
20 FT wind gust.12 10 7 6 5 5 4 4 5 5 5 5
Ridge wind dir..E E E SE SE SE SE S SW W W SW
Ridge wind spd..15 10 10 10 10 10 10 10 10 10 10 10
Mix hgt (kft)...3.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.E E E E E SE S SW W W SW SW
Transp wind spd.13 12 10 9 9 8 8 8 9 9 9 9
SDspl kt-ft/100031 10 5 4 4 3 4 4 4 4 4 4
.THURSDAY...
Sky/weather.........Mostly sunny (20-30 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Max temperature.....Around 57.
Min humidity........39 percent.
Wind (20 ft)........Light winds until 1400, then east 8 to 9 mph
with gusts to around 14 mph.
Ridgetop wind.......West around 10 mph until 1100, then northeast
until 1600, then east.
Mixing height.......2000 ft AGL until 1100, then 4500 ft AGL until
1300, then 6000 ft AGL until 1700, then 4000 ft
AGL.
Transport winds.....West 8 to 16 mph until 1700, then around 15
mph.
Smoke dispersal.....Poor until 1000, becoming good after 1200.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25 30 20 15 10 10 10 20 30 35 40 30
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 5 5 5
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............38 40 40 43 48 51 54 55 56 57 55 54
RH..............69 63 63 55 50 47 42 42 39 39 40 43
20 FT wind dir..SW SW W W NW N NE E E E E E
20 FT wind spd..4 3 4 5 4 4 6 6 8 9 8 8
20 FT wind gust.6 6 6 8 7 10 11 13 14 14 14 14
Ridge wind dir..SW SW W W NW N NE E E E E E
Ridge wind spd..10 10 10 10 10 10 10 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 0.5 2.0 3.5 4.5 5.5 6.0 5.0 5.5 4.0
Transp wind dir.SW SW W W W W W W W W W W
Transp wind spd.9 8 9 10 9 12 13 13 15 16 15 15
SDspl kt-ft/10004 4 3 6 16 35 50 59 75 72 68 54
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows around 40. Highs in the lower 60s. West winds
around 8 mph.
.SATURDAY...
Mostly clear. Lows in the lower 40s. Highs in the upper 50s. West
winds around 8 mph.
.SUNDAY...
Mostly clear. Lows in the lower 40s. Highs in the lower 60s.
Light winds.
$$
Forecaster...Hattings
Requested by...Peter Freire
Type of request...WILDFIRE
.TAG 2622568.5/RIW
.DELDT 09/30/26
.FormatterVersion 2.0.0
.EMAIL peter.freire@usda.gov,travis.l.clark@usda.gov