191
FNUS75 KRIW 312345
FWSRIW

Spot Forecast for Wall Creek Fire...Powder River Fire District
National Weather Service Riverton WY
545 PM MDT Sun Aug 31 2025

Forecast is based on forecast start time of 1700 MDT on August 31.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Warming trend and dry conditions expected through the week. North
winds 10 to 15 mph will become less than 10 mph after sunset and
overnight before increasing once again late tomorrow morning after
11AM to 10 to 20 mph. Mostly sunny skies, warmer, and minimum
relative humidity values in the 20 to 25 percent range Monday and
throughout the week as well.

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

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Max temperature.....Around 78.
Min humidity........25 percent.
Wind (20 ft)........North winds around 8 mph.
Ridgetop wind.......North around 15 mph.
Mixing height.......9000 ft AGL.
Transport winds.....North around 15 mph.
Smoke dispersal.....Very good.

TIME (MDT)      11A
Sky (%).........10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0
Chc of pcpn (%).0
Chc of thdr (%).0
Temp............77
RH..............26
20 FT wind dir..N
20 FT wind spd..8
20 FT wind gust.12
Ridge wind dir..N
Ridge wind spd..15
Mix hgt (kft)...9.0
Transp wind dir.N
Transp wind spd.15
SDspl kt-ft/1000119

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...1 percent.
Min temperature.....Around 54.
Max humidity........55 percent.
Wind (20 ft)........North winds 7 to 8 mph until 2000, then light.
Ridgetop wind.......North 10 to 15 mph until 0100, then west.
Mixing height.......8500 ft AGL until 1900, then 4500 ft AGL until
                    2000, then 500 ft AGL after 2200 until 2300.
Transport winds.....North 9 to 15 mph until 0100, then southwest 9
                    to 13 mph.
Smoke dispersal.....Very good until 1900. Poor after 2000.

TIME (MDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
Sky (%).........10  5   10  15  5   10  10  15  15  15  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............77  75  71  69  67  66  64  63  61  61  60  60
RH..............25  28  32  36  39  42  45  44  48  48  47  51
20 FT wind dir..N   N   N   N   N   NW  NW  W   W   W   W   W
20 FT wind spd..8   7   5   5   4   4   4   4   4   5   6   6
20 FT wind gust.12  10  6   6   6   6   6   6   6   6   7   10
Ridge wind dir..N   N   N   N   N   NW  NW  W   W   W   W   W
Ridge wind spd..15  15  10  10  10  10  10  10  10  10  10  15
Mix hgt (kft)...8.5 4.5 0.1 0.1 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.N   N   NE  NE  NE  NE  NW  SW  SW  SW  W   W
Transp wind spd.15  14  10  10  9   9   9   9   9   10  12  13
SDspl kt-ft/1000109 56  2   1   2   1   1   1   1   0   0   0

.LABOR DAY...

Sky/weather.........Sunny (10-20 percent). Patchy smoke late in the
                    morning. Patchy smoke in the afternoon.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...2 percent.
Max temperature.....Around 80.
Min humidity........23 percent.
Wind (20 ft)........Light winds until 0700, then southwest around 7
                    mph until 0800, then light until 1500, then
                    northeast 7 to 8 mph.
Ridgetop wind.......West 10 to 15 mph until 1100, then north.
Mixing height.......9000 ft AGL after 1500.
Transport winds.....West 12 to 14 mph until 1000, then north 10 to
                    15 mph.
Smoke dispersal.....Poor until 1000. Good early in the morning
                    increasing to very good in the afternoon after
                    1200.

TIME (MDT)      MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A
Sky (%).........10  5   0   5   5   5   0   10  25  30  25  30
Weather cov.....                PTY     PTY PTY PTY PTY PTY PTY
Weather type....                SMK     SMK SMK SMK SMK SMK SMK
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............56  55  59  63  70  73  75  77  78  78  79  80
RH..............53  54  47  41  34  30  27  25  25  24  23  24
20 FT wind dir..SW  SW  W   W   NW  N   N   N   NE  N   N   NE
20 FT wind spd..6   7   6   6   5   6   6   6   6   7   7   8
20 FT wind gust.10  10  7   10  6   7   10  10  10  10  10  12
Ridge wind dir..SW  SW  W   W   NW  N   N   N   NE  N   N   NE
Ridge wind spd..15  15  10  15  10  10  15  15  15  15  15  15
Mix hgt (kft)...0.1 0.1 0.1 0.5 2.0 5.0 7.0 8.0 8.5 9.0 9.0 9.0
Transp wind dir.SW  W   W   W   N   N   N   N   N   N   N   N
Transp wind spd.13  14  12  13  10  12  13  13  13  14  14  15
SDspl kt-ft/10000   0   0   4   19  50  80  89  94  111 110 115

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...
Mostly clear. Patchy smoke in the evening. Lows in the mid 50s.
Highs around 80. Light winds.
.WEDNESDAY...
Mostly clear. Lows in the mid 50s. Highs in the lower 70s. North
winds around 7 mph.
.THURSDAY...
Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. Light
winds.

$$
Forecaster...Lowe
Requested by...Ani
Type of request...WILDFIRE
.TAG 2521038.0/RIW
.DELDT 08/31/25
.FormatterVersion 2.0.0
.EMAIL prfd@rtconnect.net