Spot Forecast
Issued by NWS Riverton, WY

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765
FNUS75 KRIW 031235
FWSRIW

Spot Forecast for Burnt Creek...Bridger Teton National Forest
National Weather Service Riverton WY
635 AM MDT Wed Sep 3 2025

Forecast is based on forecast start time of 0700 MDT on September 03.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Conditions today will be fairly similar to yesterday, with a bit less
cloud cover. Light and terrain driven wind will dominate this morning
before becoming northwest with gusts to around 15 mph possible after
1300. Like yesterday, a stray shower or thunderstorm can`t be ruled
out between 1400 and 1700 but the chance is 1 out of 10 at the most.
Mixing and smoke dispersal will become good to very good after morning
inversions break after 1100. Wind should become mainly light after
sunset tonight. Wind will be a bit stronger Thursday afternoon as a
cold front approaches the fire site. Increasing moisture will bring
a better chance of showers and thunderstorms from this weekend into
early next week.

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

.REST OF TODAY...

Sky/weather.........Mostly sunny (15-25 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...5 percent.
Max temperature.....Around 72.
Min humidity........23 percent.
Wind (20 ft)........Light winds until 1300, then northwest 7 to 9
                    mph with gusts to around 14 mph.
Ridgetop wind.......North around 10 mph until 1100, then northwest.
Mixing height.......1000 ft AGL until 1000. 10000 ft AGL after
                    1300.
Transport winds.....South around 10 mph until 0900, then west until
                    1100, then northwest 12 to 16 mph.
Smoke dispersal.....Poor until 1000. Very good after 1300.

TIME (MDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........15  10  5   10  5   10  15  20  25  25  25
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   10  10  10   0
Chc of thdr (%).0   0   0   0   0   0   0   10  10  10   0
Temp............47  49  58  63  66  69  71  71  72  72  71
RH..............49  49  38  33  27  25  25  24  23  23  24
20 FT wind dir..NE  N   N   N   NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..5   5   5   5   6   6   7   8   9   9   9
20 FT wind gust.7   7   7   7   8   10  11  13  14  14  14
Ridge wind dir..NE  N   N   N   NW  NW  NW  NW  NW  NW  NW
Ridge wind spd..10  10  10  10  10  15  15  15  15  15  15
Mix hgt (kft)...0.5 0.5 1.0 4.0 6.5 8.0 9.0 9.5 10  10  10
Transp wind dir.S   S   W   NW  NW  NW  NW  N   NW  NW  NW
Transp wind spd.10  10  10  10  12  14  14  15  16  16  16
SDspl kt-ft/10006   6   8   35  66  97  107 126 140 139 137

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Min temperature.....Around 44.
Max humidity........54 percent.
Wind (20 ft)........Northwest winds 7 to 9 mph with gusts to around
                    14 mph until 2000, then light.
Ridgetop wind.......North 10 to 15 mph until 0200, then northeast.
Mixing height.......9000 ft AGL until 1900, then 500 ft AGL.
Transport winds.....North 9 to 16 mph.
Smoke dispersal.....Very good until 1900. Poor after 2000.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........30  30  30  30  30  25  25  20  20  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............70  67  61  56  54  53  50  48  47  46  46  46
RH..............25  29  34  42  43  45  46  49  52  53  52  53
20 FT wind dir..NW  NW  NW  NW  N   N   NE  NE  NE  NE  NE  NE
20 FT wind spd..9   7   6   5   4   4   4   4   4   4   4   4
20 FT wind gust.14  11  8   7   6   6   6   6   6   6   6   6
Ridge wind dir..NW  NW  NW  NW  N   N   NE  NE  NE  NE  NE  NE
Ridge wind spd..15  15  10  10  10  10  10  10  10  10  10  10
Mix hgt (kft)...9.0 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.NW  N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.16  14  12  10  9   9   9   9   9   9   9   9
SDspl kt-ft/1000129 23  7   6   5   5   5   5   5   5   5   5

.THURSDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...6 percent.
Max temperature.....Around 69.
Min humidity........24 percent.
Wind (20 ft)........Light winds until 1100, then northwest 7 to 11
                    mph with gusts to around 17 mph.
Ridgetop wind.......Light winds until 0900, then northwest 10 to 15
                    mph until 1500, then 15 to 20 mph.
Mixing height.......1500 ft AGL until 1000. 9500 ft AGL after 1500.
Transport winds.....North 7 to 9 mph until 1000, then northwest 17
                    to 18 mph.
Smoke dispersal.....Poor until 1000. Very good early in the morning
                    increasing to excellent in the afternoon after
                    1200.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  15  10  10  5   5   5   15  30  40  40  40
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   10  10  10  10  10  10
Chc of thdr (%).0   0   0   0   0   0   10  10  10  10  10  10
Temp............45  44  49  58  62  65  67  68  69  69  69  67
RH..............54  54  49  38  33  29  26  25  25  25  24  25
20 FT wind dir..NE  E   N   NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..2   2   2   3   5   7   9   10  10  12  12  10
20 FT wind gust.                7   11  14  14  16  18  18  16
Ridge wind dir..NE  E   N   NW  NW  NW  NW  NW  NW  NW  NW  NW
Ridge wind spd..5   5   5   10  10  15  15  15  15  20  20  15
Mix hgt (kft)...0.5 0.5 0.5 1.5 4.0 5.5 7.5 8.0 9.0 9.5 9.0 8.0
Transp wind dir.N   N   N   NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.7   7   7   9   17  18  18  18  18  18  18  18
SDspl kt-ft/10004   4   3   12  60  91  118 130 142 154 142 129

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
Northeast winds around 7 mph.
.SATURDAY...
Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the mid 60s. Light
winds.
.SUNDAY...
Mostly cloudy with showers likely and chance of thunderstorms.
Lows in the lower 40s. Highs in the lower 60s. Light winds.

$$
Forecaster...Hattings
Requested by...Erin Martin
Type of request...WILDFIRE
.TAG 2520654.4/RIW
.DELDT 09/03/25
.FormatterVersion 2.0.0
.EMAIL wytdc@firenet.gov