Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
254
FNUS75 KRIW 100118
FWSRIW
Spot Forecast for Bear Springs Pile RX...HPD-BLM
National Weather Service Riverton WY
618 PM MST Thu Jan 9 2025
Forecast is based on ignition time of 2000 MST on January 09.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Tonight into tomorrow will remain quiet, with mostly clear skies.
A weather system moves in late Friday afternoon, with snow chances
increasing Friday evening. Snow chances remain until Sunday night,
with total snowfall accumulations of 1 to 2 inches during that
time. A southwest Wind will increase Friday afternoon and remain
breezy through Saturday afternoon. The highest wind gusts will be
Friday night ranging from 25 to 40 mph. The wind may result in
blowing snow at times, especially Friday night. Smoke dispersal
will be poor until Saturday afternoon when it will improve to
fair.
...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...
.REST OF TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 10 above.
Max humidity........88 percent.
Wind (20 ft)........Southwest winds 7 to 12 mph with gusts to
around 16 mph.
Ridgetop wind.......Southwest around 15 mph.
Mixing height.......500 ft AGL.
Transport winds.....West 14 to 15 mph until 2200, then southwest 15
to 17 mph.
Smoke dispersal.....Poor.
Haines Index........2 increasing to 4 early in the morning.
TIME (MST) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........30 30 25 25 25 20 20 20 15 15
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
LAL.............1 1 1 1 1 1 1 1 1 1
Temp............17 16 15 13 12 11 11 10 10 10
RH..............74 73 77 80 76 76 63 63 59 58
20 FT wind dir..SW SW SW SW SW SW SW SW S S
20 FT wind spd..7 8 8 9 9 10 10 10 10 10
20 FT wind gust.11 12 13 14 14 14 16 16 14 14
Ridge wind dir..SW SW SW SW SW SW SW SW S S
Ridge wind spd..15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W SW SW SW SW SW SW SW SW S
Transp wind spd.14 15 15 16 16 17 17 17 17 17
Haines index....2 2 2 2 2 2 2 2 2 4
SDspl kt-ft/10006 6 7 7 7 7 7 7 7 7
.FRIDAY...
Sky/weather.........Mostly sunny (25-35 percent). Patchy blowing
snow in the late morning and afternoon.
Isolated snow showers late in the afternoon.
CWR.................3 percent.
Chance of pcpn......20 percent.
LAL.................1.
Max temperature.....Around 29.
Min humidity........54 percent.
Wind (20 ft)........South winds 10 to 19 mph with gusts to around
30 mph until 1500, then southwest 18 to 23 mph
with gusts to around 31 mph.
Ridgetop wind.......South 15 to 20 mph until 0900, then 25 to 30
mph.
Mixing height.......1500 ft AGL.
Transport winds.....Southwest 17 to 26 mph until 1200, then 28 to
31 mph.
Smoke dispersal.....Poor.
Haines Index........4 decreasing to 2 to 3 late in the morning.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........15 20 20 20 25 25 25 25 25 30 40 45
Weather cov..... PTY PTY PTY PTY PTY PTY PTY ISO
Weather type.... BSN BSN BSN BSN BSN BSN BSN SW
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 10 10 20
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............10 10 10 13 16 20 22 24 25 28 28 28
RH..............61 65 70 68 68 65 65 63 65 55 54 54
20 FT wind dir..S S S S S S S S S S SW SW
20 FT wind spd..10 12 13 15 17 17 18 19 19 20 20 21
20 FT wind gust.16 18 19 22 24 26 28 29 30 30 31 31
Ridge wind dir..S S S S S S S S S S SW SW
Ridge wind spd..15 20 20 25 25 25 30 30 30 30 30 30
Mix hgt (kft)...0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.5 1.0 0.5 0.5
Transp wind dir.S S S S S SW SW SW SW SW SW SW
Transp wind spd.17 20 21 23 25 26 28 29 29 30 30 31
Haines index....4 4 4 4 4 2 2 2 2 2 2 3
SDspl kt-ft/10007 8 8 10 12 23 29 30 34 28 16 15
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80 percent). Patchy blowing
snow. Isolated snow showers early in the
evening. Scattered snow showers in the late
evening and overnight, then snow showers likely
overnight.
CWR.................5 percent increasing to 13 percent early in the
morning.
Chance of pcpn......70 percent.
LAL.................1.
Min temperature.....Around 23.
Max humidity........71 percent.
Wind (20 ft)........Southwest winds 12 to 20 mph. Gusts up to 39
mph decreasing to 29 mph after 3 am.
Ridgetop wind.......Southwest 25 to 30 mph until 0500, then around
20 mph.
Mixing height.......500 ft AGL.
Transport winds.....Southwest 24 to 31 mph until 0500, then around
21 mph.
Smoke dispersal.....Poor.
Haines Index........2 to 3.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........55 60 65 75 80 90 85 80 80 80 80 85
Weather cov.....ISO ISO ISO SCT SCT SCT SCT SCT NUM NUM NUM LKY
Weather type....SW SW SW SW SW SW SW SW SW SW SW SW
Tstm cov........
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
Chc of pcpn (%).20 20 20 30 40 50 50 50 60 60 60 70
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............28 29 29 30 31 31 31 31 31 31 31 30
RH..............58 55 54 58 59 59 60 63 65 66 67 67
20 FT wind dir..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT wind spd..20 19 18 19 20 20 20 19 18 17 16 12
20 FT wind gust.30 30 29 29 30 31 30 30 28 25 23 18
Ridge wind dir..SW SW SW SW SW SW SW SW SW SW SW SW
Ridge wind spd..30 30 30 30 30 30 30 30 30 25 25 20
Mix hgt (kft)...0.5 0.5 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 SW SW SW SW SW SW SW SW
Transp wind spd.30 30 31 30 31 31 31 30 28 25 24 21
Haines index....3 3 3 3 3 2 2 2 2 2 2 2
SDspl kt-ft/100015 14 15 15 15 15 17 18 18 15 14 11
.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Snow showers
likely in the morning, then chance of snow
showers late in the morning.
CWR.................13 percent decreasing to 3 percent late in the
afternoon.
Chance of pcpn......70 percent.
LAL.................1.
Max temperature.....Around 29.
Min humidity........66 percent.
Wind (20 ft)........West winds 10 to 11 mph until 1200, then
northwest 7 to 10 mph. Gusts up to 22 mph.
Ridgetop wind.......West 15 to 20 mph.
Mixing height.......2000 ft AGL until 1100, then 3000 ft AGL until
1700, then 500 ft AGL.
Transport winds.....West 17 to 21 mph until 1200, then northwest 21
to 28 mph until 1700, then around 17 mph.
Smoke dispersal.....Poor until 1100, then fair until 1600, then poor.
Haines Index........2 to 3.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........85 85 85 85 85 85 85 85 85 85 80 80
Weather cov.....LKY LKY LKY LKY LKY CHC CHC CHC CHC CHC CHC CHC
Weather type....SW SW SW SW SW SW SW SW SW SW SW SW
Tstm cov........
CWR.............10 10 10 10 10 10 10 10 10 10 10 0
Chc of pcpn (%).70 70 70 70 70 40 40 40 40 40 40 40
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............29 29 23 27 27 28 28 28 28 27 27 26
RH..............68 70 71 73 74 76 78 80 80 78 74 70
20 FT wind dir..SW W W W W W NW NW NW NW W W
20 FT wind spd..11 11 10 10 10 10 10 10 10 9 8 7
20 FT wind gust.18 16 16 14 14 16 16 16 16 14 12 11
Ridge wind dir..SW W W W W W NW NW NW NW W W
Ridge wind spd..20 20 15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 1.0 2.0 2.5 2.5 3.0 3.0 2.5 1.5 0.5
Transp wind dir.W W W W W NW NW NW NW NW NW NW
Transp wind spd.20 18 17 18 20 21 23 25 28 24 21 17
Haines index....2 2 2 2 2 2 2 2 2 2 2 3
SDspl kt-ft/100010 9 8 19 31 45 54 64 74 48 27 10
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Mostly cloudy with chance of snow showers. Lows around 18. Highs
in the mid 20s. West winds around 9 mph.
.MONDAY...
Mostly cloudy. Slight chance of snow showers. Lows around 11.
Highs in the lower 20s. Southwest winds around 8 mph.
.TUESDAY...
Mostly clear. Lows around 9. Highs in the mid 20s. Southwest
winds around 9 mph.
$$
Forecaster...Rowe
Requested by...Ryan Morgan
Type of request...PRESCRIBED
.TAG 2500365.0/RIW
.DELDT 01/09/25
.FormatterVersion 2.0.0
.EMAIL rmorgan@blm.gov