Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
211
FNUS75 KRIW 131127
FWSRIW
Spot Forecast for Horse...USFS
National Weather Service Riverton WY
527 AM MDT Sun Jul 13 2025
Forecast is based on forecast start time of 0600 MDT on July 13.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Today will be another warm and dry day, with temperatures generally
5 degrees warmer than yesterday and relative humidity about 5 percent
lower than yesterday. Wind should remain light through the morning,
then become west after morning inversions break. Wind should average
around 5 mph less than yesterday as well. Morning inversions should
break between 1000 and 1200 with very good mixing and smoke dispersal
in the afternoon. A cold front will begin to approach Wyoming on
Monday and will bring somewhat stronger wind and better mixing and
smoke dispersal on Monday afternoon. The front will bring a chance
of showers and thunderstorms to the fire site on both Tuesday and
Wednesday.
...Thunderstorms imply strong gusty and erratic winds...
.TODAY...
Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......5 percent.
Chance of thunder...1 percent.
Max temperature.....Around 79.
Min humidity........20 percent.
Wind (20 ft)........Light winds until 1400, then west 7 to 9 mph
with gusts to around 16 mph.
Ridgetop wind.......West around 10 mph until 0800, then south until
0900, then light until 1000, then south around
10 mph until 1200, then west.
Mixing height.......2000 ft AGL until 1000. 9500 ft AGL after 1200.
Transport winds.....Northwest around 9 mph until 0800, then west 7
to 16 mph.
Smoke dispersal.....Poor until 1000. Very good after 1500.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0 0 0 0 0 5 10 15 20 25 20 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............48 49 55 63 68 72 74 77 78 78 78 79
RH..............47 50 48 38 35 31 30 28 26 24 22 21
20 FT wind dir..NW W S SE SE S SW W W W W W
20 FT wind spd..4 4 3 2 3 4 5 6 8 8 10 9
20 FT wind gust.6 6 6 7 8 12 13 16 14
Ridge wind dir..NW W S SE SE S SW W W W W W
Ridge wind spd..10 10 10 5 10 10 10 10 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 2.0 4.5 6.5 8.5 9.0 9.5 9.5 9.5 9.0
Transp wind dir.NW W SW S SW W W W W W W W
Transp wind spd.9 9 8 7 8 9 10 12 14 15 15 16
SDspl kt-ft/10005 5 4 14 32 54 75 90 113 126 122 126
.TONIGHT...
Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Min temperature.....Around 53.
Max humidity........37 percent.
Wind (20 ft)........Northwest winds 7 to 9 mph until 2100, then
light. Gusts up to 17 mph.
Ridgetop wind.......Northwest 10 to 15 mph.
Mixing height.......6500 ft AGL until 2000, then 500 ft AGL.
Transport winds.....West 12 to 16 mph.
Smoke dispersal.....Very good early in the evening decreasing to
good late in the night until 2000, then poor.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15 10 10 10 10 5 0 5 5 5 5 5
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 76 73 68 63 60 58 56 56 55 54 53
RH..............23 24 26 30 32 34 35 35 35 35 35 37
20 FT wind dir..NW W NW NW NW NW NW W W W W W
20 FT wind spd..9 8 7 6 6 6 6 6 6 6 6 6
20 FT wind gust.14 13 11 10 10 8 8 8 8 8 8 8
Ridge wind dir..NW W NW NW NW NW NW W W W W W
Ridge wind spd..15 15 15 15 15 10 10 10 10 10 10 10
Mix hgt (kft)...8.0 6.5 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 NW NW NW NW W W W W W W
Transp wind spd.16 15 14 13 13 12 12 12 12 12 12 12
SDspl kt-ft/1000110 85 10 6 6 6 5 6 6 6 6 6
.MONDAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...5 percent.
Max temperature.....Around 76.
Min humidity........23 percent.
Wind (20 ft)........Light winds until 1100, then west 8 to 12 mph
with gusts to around 18 mph.
Ridgetop wind.......West 10 to 15 mph until 1400, then around 20
mph.
Mixing height.......1500 ft AGL until 0900. 10000 ft AGL after
1300.
Transport winds.....West 10 to 18 mph until 1500, then 20 to 21
mph.
Smoke dispersal.....Poor until 0900. Very good early in the morning
increasing to excellent in the afternoon after
1200.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 15 5 0 0 5 5 10 10 15 15 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 10 10 10 10 10 10
Chc of thdr (%).0 0 0 0 0 0 10 10 10 10 10 10
Temp............53 54 60 65 68 71 73 74 75 76 76 75
RH..............36 37 34 30 29 27 25 24 23 23 23 24
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..5 5 5 6 6 8 9 10 11 12 12 12
20 FT wind gust.7 7 7 8 10 13 14 16 17 18 18 18
Ridge wind dir..W W W W W W W W W W W W
Ridge wind spd..10 10 10 10 15 15 15 15 20 20 20 20
Mix hgt (kft)...0.5 0.5 1.5 3.5 5.5 7.5 9.0 9.5 9.5 10 10 9.5
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.10 10 10 12 15 15 16 17 18 20 20 21
SDspl kt-ft/10005 7 13 35 74 96 127 141 156 171 168 175
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...
Mostly clear. Chance of showers and thunderstorms. Lows in the
lower 50s. Highs in the lower 70s. West winds around 9 mph.
.WEDNESDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the mid 40s. Highs in the lower 70s. Southwest winds around
9 mph.
.THURSDAY...
Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
Southwest winds around 8 mph.
$$
Forecaster...Hattings
Requested by...Cass Urbigkit
Type of request...WILDFIRE
.TAG 2517499.4/RIW
.DELDT 07/13/25
.FormatterVersion 2.0.0
.EMAIL cass.urbigkit@wyo.gov