836
FNUS75 KRIW 111215
FWSRIW

Spot Forecast for Hams Fork RX Unit 8/6...USFS
National Weather Service Riverton WY
615 AM MDT Thu Jun 11 2026

Forecast is based on ignition time of 0800 MDT on June 11.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Dry conditions expected today under mostly sunny skies.
Temperatures around 5 degrees warmer than yesterday, giving way to
minimum relative humidity values down to near 25 percent and good
recovery overnight. Winds will increase after 0900 out of the
west 10 to 15 mph before becoming light towards sunset and
overnight. Smoke dispersal therefore, will be good with the higher
winds before becoming poor overnight.

...Thunderstorms imply strong gusty and erratic winds...

.TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 60.
Min humidity........25 percent.
Wind (20 ft)........Light winds until 1500, then west around 7 mph.
Ridgetop wind.......Light until 0900, then west 10 to 15 mph.
Mixing height.......2000 ft AGL until 1000. 6500 ft AGL after 1300.
Transport winds.....North 7 to 8 mph until 0900, then west 9 to
                    14 mph.
Smoke dispersal.....Poor until 0900. Good after 1500.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   0   0   0   0   0   5   5   5   5
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............36  41  45  49  52  54  56  58  60  60
RH..............54  46  43  37  35  32  31  28  26  25
20 FT wind dir..W   W   W   W   W   W   W   W   W   W
20 FT wind spd..2   3   4   5   5   6   6   7   7   7
20 FT wind gust.    4   6   6   6   7   10  10  10  10
Ridge wind dir..W   W   W   W   W   W   W   W   W   W
Ridge wind spd..5   10  10  10  10  10  15  15  15  15
Mix hgt (kft)...1.5 2.0 2.5 3.0 4.0 5.0 5.5 6.0 6.5 6.0
Transp wind dir.N   NW  NW  W   W   W   W   W   W   W
Transp wind spd.7   8   9   10  10  12  13  14  14  14
SDspl kt-ft/10009   14  19  29  36  49  62  72  77  74

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 40.
Max humidity........45 percent.
Wind (20 ft)........West winds around 7 mph until 1900, then light.
Ridgetop wind.......West 10 to 15 mph until 2300, then east until
                    0200, then light.
Mixing height.......5000 ft AGL until 2000, then 500 ft AGL.
Transport winds.....West 8 to 14 mph until 2300, then northwest
                    around 8 mph until 0100, then west 7 to 8 mph.
Smoke dispersal.....Good early in the evening decreasing to fair
                    late in the night until 2000. Poor after 2100.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5   5   10  10  10  10  10  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............59  58  56  50  47  45  44  42  42  42  42  41
RH..............27  29  33  41  42  44  44  45  43  43  40  41
20 FT wind dir..W   W   W   W   NW  E   E   E   SE  SE  S   S
20 FT wind spd..7   6   5   4   3   3   3   3   2   2   2   2
20 FT wind gust.10  7   6   6   4   4   4   4
Ridge wind dir..W   W   W   W   NW  E   E   E   SE  SE  S   S
Ridge wind spd..15  10  10  10  10  10  10  10  5   5   5   5
Mix hgt (kft)...5.5 5.0 2.0 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   W   SW  SW  W
Transp wind spd.14  13  10  9   8   8   8   8   7   7   7   7
SDspl kt-ft/100068  55  16  4   4   4   4   3   3   3   3   3

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 68.
Min humidity........23 percent.
Wind (20 ft)........Light winds until 1200, then west 8 to 10 mph.
Ridgetop wind.......Light winds until 0900, then west 10 to 15 mph.
Mixing height.......2000 ft AGL until 1000. 6000 ft AGL after 1200.
Transport winds.....West 7 to 14 mph until 1000, then 18 to 22 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 (%).........5   10  5   5   0   0   0   5   10  5   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............40  44  48  53  57  60  62  65  66  67  67  67
RH..............41  39  36  33  30  28  25  24  23  23  23  23
20 FT wind dir..S   S   SW  W   W   W   W   W   W   W   W   W
20 FT wind spd..2   2   2   3   5   6   8   9   10  10  10  10
20 FT wind gust.            4   6   10  12  13  14  14  14  14
Ridge wind dir..S   S   SW  W   W   W   W   W   W   W   W   W
Ridge wind spd..5   5   5   10  10  15  15  15  15  15  15  15
Mix hgt (kft)...0.5 0.5 1.0 2.0 3.0 4.5 5.0 5.5 6.0 6.0 6.0 6.0
Transp wind dir.SW  SW  W   W   W   W   W   W   W   W   W   W
Transp wind spd.7   7   7   10  14  18  20  21  21  22  22  22
SDspl kt-ft/10003   3   6   17  39  70  86  98  106 114 113 115

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Clear. Lows in the mid 40s. Highs in the upper 60s. Light winds.
.SUNDAY...
Mostly clear. Lows in the lower 40s. Highs in the upper 60s.
Light winds.
.MONDAY...
Mostly clear. Lows in the lower 40s. Highs in the upper 60s.
Light winds.

$$
Forecaster...Lowe
Requested by...Greg Gamertsfelder
Type of request...PRESCRIBED
.TAG 2615181.2/RIW
.DELDT 06/11/26
.FormatterVersion 2.0.0
.EMAIL Greg.gamertsfelder@usda.gov