914
FNUS75 KRIW 042052
FWSRIW

Spot Forecast for Lonesome...USFS
National Weather Service Riverton WY
252 PM MDT Fri Oct 4 2024

Forecast is based on forecast start time of 1500 MDT on October 04.
If conditions become unrepresentative, contact the National Weather
Service

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT SATURDAY...

.DISCUSSION...

Very windy conditions will continue across the Wind River range
through the next 36 hours. Southwest winds through the rest of
today will be around 25 mph with gusts to 40 mph. Humidity hovers
between 15 to 20 percent through sunset.

Tonight a passing weather system will bring further increasing
winds. Southwest winds will 30 to 40 mph, with gusts 50 to 60 mph,
especially in southwest to northeast aligned valleys. These winds
will continue through at least 1200 Saturday, with only a slow
decrease in winds during the afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 61.
Min humidity........18 percent.
Wind (20 ft)........Breezy. Southwest winds 22 to 26 mph with gusts
                    to around 38 mph.
Ridgetop wind.......Southwest 30 to 35 mph.
Mixing height.......7500 ft AGL.
Transport winds.....Southwest 39 to 41 mph.
Smoke dispersal.....Excellent.
Haines Index........4.

TIME (MDT)      3PM 4PM 5PM
Sky (%).........5   5   10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0
Chc of pcpn (%).0   0   0
LAL.............1   1   1
Temp............60  60  58
RH..............20  19  20
20 FT wind dir..SW  SW  SW
20 FT wind spd..22  24  26
20 FT wind gust.33  36  38
Ridge wind dir..SW  SW  SW
Ridge wind spd..30  35  35
Mix hgt (kft)...6.0 7.0 7.5
Transp wind dir.SW  SW  SW
Transp wind spd.39  41  41
Haines index....4   4   4
SDspl kt-ft/1000200 245 273

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 33.
Max humidity........59 percent.
Wind (20 ft)........Windy. West winds 27 to 31 mph with gusts to
                    around 47 mph.
Ridgetop wind.......West 40 to 45 mph.
Mixing height.......5000 ft AGL until 1900, then 500 ft AGL.
Transport winds.....West 38 to 44 mph.
Smoke dispersal.....Excellent until 1900. Poor after 2000.
Haines Index........6 decreasing to 3 overnight.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15  20  25  30  30  30  30  25  15  10  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
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............56  50  46  44  42  41  44  41  40  39  37  35
RH..............20  23  27  29  32  36  39  41  42  44  45  50
20 FT wind dir..SW  SW  W   W   W   W   W   W   W   W   W   W
20 FT wind spd..27  29  29  30  31  31  31  29  29  28  28  29
20 FT wind gust.41  43  44  46  47  47  47  44  43  42  42  43
Ridge wind dir..SW  SW  W   W   W   W   W   W   W   W   W   W
Ridge wind spd..40  40  40  45  45  45  45  40  40  40  40  40
Mix hgt (kft)...5.0 2.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.SW  SW  SW  SW  W   W   W   W   W   W   W   W
Transp wind spd.38  40  41  43  44  44  44  41  40  39  39  41
Haines index....6   6   6   6   6   6   3   3   3   3   3   3
SDspl kt-ft/1000158 63  24  17  19  18  18  17  15  15  15  16

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 52.
Min humidity........23 percent.
Wind (20 ft)........Breezy. West winds 21 to 29 mph with gusts to
                    around 43 mph until 1700, then around 18 mph
                    with gusts to around 28 mph.
Ridgetop wind.......West 35 to 40 mph until 1600, then around 30
                    mph.
Mixing height.......2000 ft AGL until 1200, then 3000 ft AGL.
Transport winds.....West 31 to 40 mph until 1700, then around 28
                    mph.
Smoke dispersal.....Poor until 0900, then fair until 1100, then
                    good until 1700, then fair.
Haines Index........2 to 3.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  10  5   5   5   5   5   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
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............34  33  34  38  43  46  48  51  52  52  52  51
RH..............52  58  59  56  47  37  30  30  26  23  23  24
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..29  29  29  29  29  29  29  28  26  24  21  18
20 FT wind gust.43  43  43  43  43  43  43  42  38  36  32  28
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..40  40  40  40  40  40  40  40  35  35  30  30
Mix hgt (kft)...0.5 0.5 0.5 1.0 1.5 2.0 2.5 3.0 3.0 3.0 2.5 2.0
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.40  40  40  40  40  40  40  39  37  35  31  28
Haines index....2   2   2   2   2   2   3   3   3   3   3   3
SDspl kt-ft/100015  15  17  43  57  70  83  97  96  91  73  54

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Clear. Lows in the upper 20s. Highs in the mid 50s. West winds
around 9 mph.
.MONDAY...
Mostly clear. Lows around 30. Highs in the mid 50s. West winds
around 10 mph.
.TUESDAY...
Mostly clear. Lows in the lower 30s. Highs in the mid 50s. West
winds around 9 mph.

$$
Forecaster...Straub
Requested by...JE
Type of request...WILDFIRE
.TAG 2423627.0/RIW
.DELDT 10/04/24
.FormatterVersion 2.0.0
.EMAIL john.ellington@usda.gov