Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
887
FNUS75 KRIW 062232
FWSRIW
Spot Forecast for COW CAMP...UNITED STATES WILDLAND FIRE SERVICE
National Weather Service Riverton WY
432 PM MDT Sun Sep 6 2026
Forecast is based on forecast start time of 0600 MDT on September 07.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Showers and isolated thunder expected overnight tonight (Sunday
night), which should be complete by sunrise Monday. A few
lingering light shower may continue through 0900, but nothing
beyond that. Skies clear rapidly by 1200, with clear skies
through the afternoon. Near critical fire weather concerns on
Monday, with very gusty southwest winds reaching 40 mph through
the afternoon. Even with any rainfall overnight, humidity levels
will likely fall to near 15 percent during the afternoon as well.
Gusty winds will continue through mid evening around 2100, before
decreasing below 5 mph overnight.
Tuesday will see lighter winds, with southwest gusts likely
staying below 20 mph through the day. Drier air will begin to
return, with humidity falling to 10 to 15 percent in the
afternoon. Skies remain clear with no precipitation expected.
...Thunderstorms imply strong gusty and erratic winds...
.LABOR DAY...
Sky/weather.........Mostly sunny (25-35 percent). Isolated rain
showers early in the morning.
CWR.................0 percent.
Chance of pcpn......20 percent.
Chance of thunder...8 percent.
Max temperature.....Around 70.
Min humidity........22 percent.
Wind (20 ft)........West winds 16 to 22 mph. Gusts up to 40 mph.
Ridgetop wind.......West 25 to 30 mph.
Mixing height.......1500 ft AGL until 0900, then 9000 ft AGL.
Transport winds.....West 24 to 32 mph.
Smoke dispersal.....Poor until 0800, then Excellent after 1100.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55 45 25 5 0 5 20 20 15 35 5 10
Weather cov.....ISO
Weather type....RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).20 10 0 0 0 10 10 10 0 10 10 0
Chc of thdr (%).0 0 0 0 0 0 10 10 0 10 10 0
Temp............59 57 59 59 62 64 67 67 68 70 68 68
RH..............54 57 54 52 48 43 38 35 30 26 23 22
20 FT wind dir..SW SW SW SW SW W W W W W W W
20 FT wind spd..17 17 16 17 17 17 17 17 20 21 22 22
20 FT wind gust.23 24 22 23 25 26 28 29 31 31 32 32
Ridge wind dir..SW SW SW SW SW W W W W W W W
Ridge wind spd..25 25 25 25 25 25 25 25 30 30 30 30
Mix hgt (kft)...0.5 0.5 1.5 2.5 4.5 6.0 7.0 7.5 8.5 9.0 8.5 8.5
Transp wind dir.SW SW SW SW SW SW W W W W W W
Transp wind spd.26 26 24 25 25 26 26 28 30 31 32 32
SDspl kt-ft/100013 12 32 57 95 136 163 185 220 238 235 232
.MONDAY NIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...2 percent.
Min temperature.....Around 47.
Max humidity........35 percent.
Wind (20 ft)........West winds 14 to 21 mph with gusts to around 30
mph until 2200, then 7 to 10 mph with gusts to
around 16 mph until 2400, then light.
Ridgetop wind.......West around 30 mph until 2100. Northwest around
10 mph after 2400.
Mixing height.......7500 ft AGL until 1900. 500 ft AGL after 2000.
Transport winds.....West 22 to 31 mph until 2200, then 9 to 17 mph.
Smoke dispersal.....Excellent until 1900. Poor after 2100.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........20 10 5 5 10 10 10 10 10 10 10 15
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............66 63 59 58 56 54 53 51 50 49 48 48
RH..............22 22 23 23 28 30 31 33 33 34 34 35
20 FT wind dir..W W W W W W W W W NW NW N
20 FT wind spd..21 21 18 14 10 7 5 4 4 4 4 5
20 FT wind gust.30 30 26 20 16 12 8 6 6 6 6 6
Ridge wind dir..W W W W W W W W W NW NW N
Ridge wind spd..30 30 30 20 15 15 10 10 10 10 10 10
Mix hgt (kft)...7.5 3.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W W W W NW NW NW W NW NW W W
Transp wind spd.31 31 28 22 17 14 13 12 10 9 9 10
SDspl kt-ft/1000202 91 21 11 8 7 6 5 5 4 4 5
.TUESDAY...
Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 66.
Min humidity........16 percent.
Wind (20 ft)........Light winds until 1000, then west 7 to 13 mph
with gusts to around 22 mph.
Ridgetop wind.......Southeast around 10 mph until 0700, then west
until 1200, then around 20 mph.
Mixing height.......2000 ft AGL until 1000, then 6500 ft AGL.
Transport winds.....West 9 to 18 mph until 1300, then 20 mph.
Smoke dispersal.....Poor until 0900, then Very good.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5 30 15 0 0 0 0 0 0 0 0 0
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............47 47 49 52 55 58 61 63 65 66 66 65
RH..............35 35 32 28 25 23 21 19 17 16 16 16
20 FT wind dir..SE W W W W W W W W W W NW
20 FT wind spd..4 4 5 6 7 9 11 12 13 13 13 13
20 FT wind gust.6 6 8 11 14 17 19 21 22 22 22 21
Ridge wind dir..SE W W W W W W W W W W NW
Ridge wind spd..10 10 10 10 15 15 20 20 20 20 20 20
Mix hgt (kft)...0.5 0.5 1.5 2.0 3.0 4.0 5.0 5.5 6.0 6.5 6.0 6.0
Transp wind dir.W SW W W W W W W W W W W
Transp wind spd.9 9 10 12 14 16 18 20 21 21 21 21
SDspl kt-ft/10004 4 12 22 37 55 77 92 109 120 112 104
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...
Mostly clear. Lows in the mid 40s. Highs in the mid 60s. Light
winds.
.THURSDAY...
Mostly clear. Lows around 50. Highs in the lower 70s. Light
winds.
.FRIDAY...
Mostly clear. Lows in the lower 50s. Highs around 70. West winds
around 9 mph.
$$
Forecaster...Straub
Requested by...Shelby Bell
Type of request...WILDFIRE
.TAG 2621182.5/RIW
.DELDT 09/06/26
.FormatterVersion 2.0.0
.EMAIL wycdc@firenet.gov,kaden_mcelhinny@hotmail.com