209
FNUS75 KBYZ 110850
FWSBYZ
SPOT FORECAST FOR HORSETHIEF PILE RX...USWFS
NATIONAL WEATHER SERVICE BILLINGS MT
150 AM MST WED FEB 11 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON FEBRUARY 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
DRY CONDITIONS THROUGH THE FORECAST PERIOD. HIGH LEVEL CLOUD
COVER COMBINED WITH SNOW COVER WILL MAKE TEMPERATURE FORECAST
TRICKY. MORE CLOUD COVER WILL HOLD TEMPERATURES DOWN SEVERAL
DEGREES, WHILE A BREAK IN COVER FOR A FEW HOURS WILL ALLOW FOR A
JUMP OF SEVERAL DEGREES. GIVEN THE CURRENT FORECAST KEPT
TEMPERATURES TODAY ON THE LOWER END OF TEMPERATURE GUIDANCE. WINDS
WILL BE RELATIVELY LIGHT OUT OF THE WEST TO SOUTHWEST TODAY.
CLOUD COVER DIMINISHES TONIGHT ALLOWING TEMPERATURES TO DROP BACK
INTO THE TEENS OVERNIGHT WITH LIGHT WINDS. THURSDAY WILL BE A FEW
DEGREES WARMER WITH LESS CLOUD COVER THAN TODAY. TEMPERATURES WILL
HAVE ABOVE NORMAL UNCERTAINTY UNTIL SNOW COVER MELTS, MAINLY DUE
TO CLOUD COVER VARIATIONS.
SNOWMELT TIMING: SNOW MODEL SHOWS AROUND 5 INCHES OF SNOW ON THE
GROUND AT THE SPOT LOCATION, AND IS SHOWING AROUND AN INCH OF MELT
PER DAY FOR THE NEXT COUPLE OF DAYS (AS FAR AS THE MODEL LOOKS
OUT). LOOKING FOR SUNNY BREEZY DAYS TO INCREASE THE MELT FACTOR,
AND THU/FRI ARE BORDERLINE FOR THOSE CONDITIONS. NOT SEEING ANY
STRONG WIND SIGNALS IN THE EXTENDED FORECAST, BUT PERSISTEN GUSTS
OVER 20 MPH ARRIVE BY MONDAY. HEAVIER CLOUD COVER FROM FRIDAY
AFTERNOON THROUGH THE WEEKEND MAY SLOW SNOWMELT SOME. CHAMBERS
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....38-43.
MIN HUMIDITY........51-55 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST 4 TO 8 MPH BECOMING WEST AFTER 2PM.
RIDGETOP...........WEST AROUND 9 MPH.
MIXING HEIGHT.......1000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
TIME (MST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........59 58 56 53 49 42 42 49 51 48
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............20 24 29 33 37 39 40 41 39 37
RH..............80 72 66 63 56 56 53 53 56 62
20 FT WIND DIR..SW SW W W W W W W W W
20 FT WIND SPD..4 4 4 4 4 4 5 5 4 4
20 FT WIND GUST.6 6 6 7 7 10 9 8 7 6
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....14-20.
MAX HUMIDITY........73-77 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......DOWN SLOPE/VALLEY 3 TO 6 MPH.
RIDGETOP...........SOUTHWEST AROUND 6 MPH.
MIXING HEIGHT.......200 FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 3 TO 9 MPH.
TIME (MST) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........54 35 20 13
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
TEMP............33 22 18 16
RH..............70 74 75 69
20 FT WIND......W 2G4 SW 2G4 SW 2G5 SW 3G6
THURSDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....42-48.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS AROUND 5 MPH IN THE MORNING
BECOMING WEST 6 TO 10 MPH WITH OCCASIONAL
GUSTS TO 18 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHWEST AROUND 8 MPH BECOMING WEST AROUND
12 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 13 MPH IN THE MORNING INCREASING
TO 20 MPH LATE IN THE MORNING.
TIME (MST) 6 AM 9 AM NOON 3 PM
SKY (%).........33 25 12 10
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
TEMP............19 27 43 45
RH..............73 67 42 42
20 FT WIND......SW 5G8 SW 5G8 W 7G12 W 9G16
FORECASTER...CHAMBERS
REQUESTED BY...GRIFIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2602340.0/BYZ
.DELDT 02/11/26
.FORMATTERVERSION 2.0.0
.EMAIL DDAY@BLM.GOV,RMGRIFFIN@BLM.GOV
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