436
FNUS75 KMSO 192110
FWSMSO
SPOT FORECAST FOR ISLAND CREEK FIRE
NATIONAL WEATHER SERVICE MISSOULA MT
310 PM MDT TUE AUG 19 2025
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ON WEDNESDAY, A DRY COLD FRONT WILL PASS, COOLING
TEMPERATURES BUT ALSO INCREASING WESTERLY WINDS. ELEVATED FIRE
WEATHER CONDITIONS ARE ANTICIPATED DUE TO GUSTY WINDS AND STILL
RELATIVELY DRY RHS. DRIER AIR MOVES INTO THE REGION ON THURSDAY,
WITH HUMIDITY LOWERING BACK INTO THE TEENS AND LOW 20S.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....76-81.
* MIN HUMIDITY........25-30 PERCENT.
* WIND (20 FT)........VARIABLE 2-5 MPH BECOMING NORTHWEST 6-9 MPH
IN THE AFTERNOON WITH GUSTS OF 12-16 MPH.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 5500 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........WEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....54-59.
* MAX HUMIDITY........48-53 PERCENT.
* WIND (20 FT)........NORTHWEST 5-9 MPH IN THE EVENING BECOMING
VARIABLE 2-5 MPH.
* MIXING HEIGHT.......4000 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
* MIXING WINDS........WEST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....79-84.
* MIN HUMIDITY........17-22 PERCENT.
* WIND (20 FT)........VARIABLE 2-4 MPH BECOMING NORTHWEST 6-9 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 6500 FT AGL.
* MIXING WINDS........WEST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...KITSMILLER
REQUESTED BY...ANNA SIVILL
TYPE OF REQUEST...WILDFIRE
.TAG 2520252.0/MSO
.DELDT 08/19/25
.FORMATTERVERSION 2.0.0
.EMAIL ANNA.SIVILL@USDA.GOV
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