Suppression Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
468
FNUS75 KRIW 251255
FWSRIW
Spot Forecast for Dull Knife...BLM
National Weather Service Riverton WY
655 AM MDT Fri Jul 25 2025
Forecast is based on forecast start time of 0700 MDT on July 25.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Warm and dry conditions are expected today as humidity drops to under
15 percent this afternoon. Skies remain mostly clear today with
wind generally out of the west. Saturday will be similarly warm
with low relative humidity, though there will be a slightly
increased chance of afternoon showers and thunderstorms. This
activity will lead to gusty and erratic outflow wind potential
Saturday afternoon and evening.
...Thunderstorms imply strong gusty and erratic winds...
.TODAY...
Sky/weather.........Sunny (0-10 percent) with haze/smoke.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...3 percent.
Max temperature.....Around 86.
Min humidity........13 percent.
Wind (20 ft)........West winds 8 to 10 mph with gusts to around 15
mph.
Ridgetop wind.......West around 15 mph.
Mixing height.......Increasing to 12500 ft AGL after 1200.
Transport winds.....West 16 to 21 mph.
Smoke dispersal.....Poor becoming excellent excellent by 1100.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10 5 5 0 0 5 10 10 10 10 5
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ
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............69 69 73 77 79 81 84 85 85 86 86
RH..............36 39 30 28 25 21 18 16 14 13 13
20 FT wind dir..NW W W W W W W W W W W
20 FT wind spd..8 8 8 8 9 9 9 9 10 9 9
20 FT wind gust.14 13 13 13 13 14 14 14 14 14 13
Ridge wind dir..W W W W W W W W W W W
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.1 0.5 1.5 6.5 9.0 11 12 12 13 13 12
Transp wind dir.W W W W W W W W W W W
Transp wind spd.16 16 16 18 21 21 21 21 20 20 18
SDspl kt-ft/10003 5 23 107 164 197 210 219 208 209 193
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...2 percent.
Min temperature.....Around 60.
Max humidity........39 percent.
Wind (20 ft)........West winds 7 to 8 mph until 2000, then light
downslope/downvalley.
Ridgetop wind.......Northwest 10 to 15 mph.
Mixing height.......Decreasing to 100 ft AGL after 2000.
Transport winds.....West 15 to 20 mph until 2000, then northwest
around 13 mph.
Smoke dispersal.....Excellent becoming poor after 2000.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5 15 20 25 20 35 35 35 30 20 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 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............84 84 79 74 71 69 66 66 64 62 61 60
RH..............14 17 20 24 27 29 32 32 36 35 37 37
20 FT wind dir..W W NW NW NW NW NW N NW NW NW NW
20 FT wind spd..8 7 6 6 6 6 6 7 7 7 6 6
20 FT wind gust.13 11 10 10 10 10 10 11 11 11 10 8
Ridge wind dir..W W NW NW NW NW NW N NW NW NW NW
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 10
Mix hgt (kft)...12 8.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.W W W NW NW NW N N N N N N
Transp wind spd.20 15 13 13 13 13 13 14 14 14 13 12
SDspl kt-ft/1000197 101 2 2 2 2 2 2 2 2 2 1
.SATURDAY...
Sky/weather.........Mostly sunny (35-45 percent). Slight chance
of showers and thunderstorms after 1200.
CWR.................5 percent.
Chance of pcpn......15 percent.
Chance of thunder...10 percent.
Max temperature.....Around 86.
Min humidity........14 percent.
Wind (20 ft)........Light downslope downvalley until 1000, then
generally south 5 to 10 mph with gusts to
15 mph. Becoming west around 8 mph after
1500.
Ridgetop wind.......Northwest around 10 mph until 0900, then
generally south around 15 mph. Becoming
west 15 to 20 mph after 1400.
Mixing height.......Increasing to 9500 ft AGL by 1500.
Transport winds.....Northwest around 10 mph until 0900, then south
10 to 16 mph until 1400, then west 15 to 16
mph.
Smoke dispersal.....Poor increasing to very good by 1300.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20 15 20 30 50 60 65 65 60 55 50 40
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 5 5 5 0 0
Chc of pcpn (%).0 0 0 0 0 0 10 15 15 15 15 15
Chc of thdr (%).0 0 0 0 0 0 5 10 10 10 5 5
Temp............60 63 67 73 77 81 84 86 86 86 86 86
RH..............39 37 37 34 28 22 18 16 15 15 14 14
20 FT wind dir..NW NW W SW SW S SE S SW W W NW
20 FT wind spd..5 5 5 5 6 7 9 9 9 8 8 9
20 FT wind gust.7 7 7 7 10 12 14 14 13 13 13 13
Ridge wind dir..NW NW W SW SW S SE S SW W W NW
Ridge wind spd..10 10 10 10 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.1 0.1 0.5 1.0 2.0 4.0 6.5 7.5 8.5 9.5 8.0 6.5
Transp wind dir.N N NW S S S SW SW W W W W
Transp wind spd.10 10 10 10 13 14 16 16 16 15 15 16
SDspl kt-ft/10001 1 4 9 23 50 88 103 117 123 103 91
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Mostly clear. Lows in the lower 60s. Highs in the mid 80s. West
winds 5 to 10 mph.
.MONDAY...
Mostly clear. Lows in the upper 50s. Highs in the mid 80s.
East winds 4 to 8 mph.
.TUESDAY...
Partly cloudy. Chance of showers and thunderstorms. Lows in the
lower 60s. Highs around 80. Northeast winds 5 to 10 mph.
$$
Forecaster...Myers
Requested by...Cristoph Atkinson
Type of request...WILDFIRE
.TAG 2518539.1/RIW
.DELDT 07/25/25
.FormatterVersion 2.0.0
.EMAIL wycpc@firenet.gov