211
FNUS75 KRIW 111305
FWSRIW

Spot Forecast for Britton Springs Piles...BLM
National Weather Service Riverton WY
605 AM MST Tue Feb 11 2025

Forecast is based on ignition time of 0700 MST on February 11.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Light winds throughout the entirety of the day with more of a
southerly direction through mid afternoon before turning northerly
there after. Mainly clear skies throughout the day with ample
sunshine to be had with no snow chances expected. Otherwise,
temperatures will push into the single digits above zero this
afternoon with overnight lows near 15 to 20 below. Minimum
relative humidity values will remain above 50 percent with similar
conditions through Thursday ahead of a warming trend and the next
chance for snow into Friday and the weekend.

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

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Max temperature.....Around 7 above.
Min humidity........57 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......Light winds until 1700, then northeast around
                    10 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Light winds until 1100, then southwest around 7
                    mph until 1200, then light until 1600, then
                    north 7 to 10 mph.
Smoke dispersal.....Poor.

TIME (MST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25  20  15  10  10  10  5   5   5   5   0
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   0   0   0   0
Temp............-16 -15 -10 -6  -2  0   2   3   3   3   3
RH..............73  77  74  71  69  65  61  57  58  59  60
20 FT wind dir..N   N   S   S   S   S   S   SW  W   N   N
20 FT wind spd..1   1   1   1   1   1   1   1   1   2   3
20 FT wind gust.                                        5
Ridge wind dir..N   NW  S   S   S   S   S   SW  W   N   NE
Ridge wind spd..5   5   5   5   5   5   5   5   5   5   10
Mix hgt (kft)...1.0 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.0 1.5 1.0
Transp wind dir.NW  W   SW  SW  SW  SW  W   NW  N   N   N
Transp wind spd.6   5   6   6   7   6   6   6   6   7   10
SDspl kt-ft/10005   4   5   5   9   8   9   9   10  10  9

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Min temperature.....Around 9 below.
Max humidity........73 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......North around 10 mph until 0400, then light
                    until 0500, then north around 10 mph.
Mixing height.......1000 ft AGL.
Transport winds.....North 8 to 12 mph until 0400, then northeast 7
                    to 8 mph.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........20  25  35  35  35  35  35  35  35  40  45  50
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
Temp............2   -1  -3  -4  -4  -5  -6  -8  -9  -9  -9  -9
RH..............60  60  60  60  60  60  62  63  65  67  70  72
20 FT wind dir..NE  N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..6   6   4   4   3   3   3   3   3   3   2   3
20 FT wind gust.8   8   6   6   5   5   5   5   5   5       5
Ridge wind dir..NE  N   N   N   N   N   N   N   N   N   N   N
Ridge wind spd..10  10  10  10  10  10  10  10  10  10  5   10
Mix hgt (kft)...1.0 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.N   N   N   N   N   N   N   N   NE  NE  E   NE
Transp wind spd.12  12  9   9   8   8   8   8   8   8   7   8
SDspl kt-ft/100010  10  8   8   7   7   7   7   7   7   6   7

.WEDNESDAY...

Sky/weather.........Mostly sunny (30-40 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Max temperature.....Around 6 above.
Min humidity........56 percent.
Wind (20 ft)........Light winds.
Ridgetop wind.......Light winds until 1600, then south around 10
                    mph.
Mixing height.......2000 ft AGL.
Transport winds.....Northeast around 7 mph until 0700, then light
                    until 1100, then south 7 to 8 mph.
Smoke dispersal.....Poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50  45  45  40  35  30  25  20  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
Temp............-9  -9  -9  -5  -2  2   3   5   6   5   5   4
RH..............73  73  73  71  69  66  63  59  56  57  59  60
20 FT wind dir..N   N   N   NE  SE  S   S   S   SE  S   S   SW
20 FT wind spd..2   1   0   1   1   2   2   2   2   2   3   3
20 FT wind gust.                                        5   6
Ridge wind dir..N   N   N   NE  SE  S   S   S   SE  S   S   SW
Ridge wind spd..5   5   5   5   5   5   5   5   5   5   10  10
Mix hgt (kft)...1.0 1.0 1.0 1.0 1.5 1.5 1.5 2.0 2.0 1.5 1.5 1.0
Transp wind dir.NE  NE  NE  E   SE  S   S   S   S   S   SW  SW
Transp wind spd.7   6   5   6   6   7   7   7   7   7   8   8
SDspl kt-ft/10006   5   4   5   7   10  10  11  12  10  9   7

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
Not as cold. Mostly clear. Lows around 5 below. Highs in the
lower 20s. Light winds.
.FRIDAY...
Mostly cloudy with chance of snow showers. Lows around 11. Highs
in the mid 20s. Light winds.
.SATURDAY...
Mostly cloudy with chance of snow showers. Lows around 4. Highs
around 18. Light winds.

$$
Forecaster...Lowe
Requested by...Robert Griffin
Type of request...PRESCRIBED
.TAG 2502665.1/RIW
.DELDT 02/11/25
.FormatterVersion 2.0.0
.EMAIL Rmgriffin@blm.gov,dday@blm.gov