Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
407
FNUS75 KRIW 131546
FWSRIW
Spot Forecast for Wiggins Piles...USFS SHF
National Weather Service Riverton WY
846 AM MST Wed Nov 13 2024
Forecast is based on ignition time of 0900 MST on November 13.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Dry and cold conditions today in the wake of yesterday`s storm
system. High clouds will increase through the morning and stream
over the area through the rest of the day, before clearing out
after sunset. Winds will be mainly light from the west, with gusts
up to 15 mph. These winds will continue overnight tonight,
decreasing to 10 mph. These conditions return Thursday, with a
more west-southwest wind direction expected. Snow showers will be
possible to the west-northwest of the site Thursday morning. There
is a 10% chance this activity will impact the site for now.
...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...
.TODAY...
Sky/weather.........Mostly sunny (30-40 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Max temperature.....Around 38.
Min humidity........31 percent.
Wind (20 ft)........Light winds until 1000, then west 8 to 10 mph.
Ridgetop wind.......West around 15 mph.
Mixing height.......3000 ft AGL.
Transport winds.....West 15 to 21 mph.
Smoke dispersal.....Poor until 1200, then poor early in the morning
increasing to fair in the afternoon until 1600,
then poor.
Haines Index........2.
TIME (MST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25 30 20 30 40 40 50 50 45
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0 0 0
Temp............27 32 34 35 36 37 36 34 33
RH..............54 42 36 34 34 34 35 39 42
20 FT wind dir..NW W W W W W W W NW
20 FT wind spd..6 10 10 10 9 10 10 8 9
20 FT wind gust.10 14 14 14 13 14 14 12 13
Ridge wind dir..NW W W W W W W W NW
Ridge wind spd..15 15 15 15 15 15 15 15 15
Mix hgt (kft)...1.5 2.0 2.5 2.5 3.0 3.0 2.5 2.0 1.5
Transp wind dir.W W W W W W W W W
Transp wind spd.15 17 18 20 21 21 18 16 16
Haines index....2 2 2 2 2 2 2 2 2
SDspl kt-ft/100019 30 37 45 51 51 37 28 24
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Min temperature.....Around 20.
Max humidity........73 percent.
Wind (20 ft)........West winds 7 to 12 mph with gusts to around 17
mph.
Ridgetop wind.......West 15 to 20 mph.
Mixing height.......1000 ft AGL.
Transport winds.....West 14 to 20 mph.
Smoke dispersal.....Poor.
Haines Index........2.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........45 20 15 15 15 10 10 10 15 10 20 20
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 10
Temp............31 29 29 28 26 26 25 25 24 24 24 23
RH..............45 46 47 49 50 52 54 55 57 59 63 67
20 FT wind dir..W W W W W NW NW W W W W W
20 FT wind spd..9 10 12 11 9 8 8 8 7 8 8 7
20 FT wind gust.13 14 17 16 13 12 12 12 10 12 12 10
Ridge wind dir..W W W W W NW NW W W W W W
Ridge wind spd..15 15 20 20 15 15 15 15 15 15 15 15
Mix hgt (kft)...2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.16 17 20 18 16 15 15 15 14 15 15 14
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
SDspl kt-ft/100026 15 17 16 13 12 13 12 11 12 12 11
.THURSDAY...
Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Max temperature.....Around 38.
Min humidity........41 percent.
Wind (20 ft)........Light winds until 0900, then southwest 8 to 10
mph until 1600, then light.
Ridgetop wind.......West 10 to 15 mph.
Mixing height.......2500 ft AGL until 1100, then 4500 ft AGL until
1600, then 2000 ft AGL.
Transport winds.....West 13 to 22 mph until 1300. 10 to 15 mph
after 1600.
Smoke dispersal.....Poor until 1000, then fair until 1200, then
good until 1500, then fair until 1600, then
poor.
Haines Index........2.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25 25 20 20 35 35 35 30 30 30 30 30
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 10 10 10 10 0 0 0 0 0 0 0
Temp............23 23 24 29 33 35 36 37 38 36 34 32
RH..............68 70 71 62 59 56 52 48 45 47 48 50
20 FT wind dir..W W W W W SW SW SW W W W W
20 FT wind spd..6 6 6 8 10 10 10 10 10 9 6 5
20 FT wind gust.10 10 10 12 14 14 14 14 14 13 10 10
Ridge wind dir..W W W W W SW SW SW W W W W
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 10
Mix hgt (kft)...1.0 1.0 1.0 2.0 2.5 3.0 3.5 4.0 4.5 3.5 2.0 1.0
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.13 13 13 15 18 21 22 24 25 20 15 10
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
SDspl kt-ft/100011 12 14 25 41 56 68 84 98 56 28 9
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly cloudy. Snow showers likely. Lows around 19. Highs in the
upper 30s. Light winds.
.SATURDAY...
Snow showers. Lows around 20. Highs in the lower 30s. Light
winds.
.SUNDAY...
Partly cloudy. Chance of snow showers. Lows around 13. Highs in
the lower 30s. West winds around 11 mph.
$$
Forecaster...LaVoie
Requested by...Brett Heller
Type of request...PRESCRIBED
.TAG 2426480.0/RIW
.DELDT 11/13/24
.FormatterVersion 2.0.0
.EMAIL brett.heller@usda.gov