878
FNUS75 KMSO 202240
FWSMSO
SPOT FORECAST FOR ISLAND CREEK FIRE
NATIONAL WEATHER SERVICE MISSOULA MT
440 PM MDT WED AUG 20 2025
FORECAST IS BASED ON FORECAST START TIME OF 0000 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
NORTHWEST WINDS WILL LINGER INTO THE EVENING,
BECOMING VARIABLE AFTER MIDNIGHT. DRIER AIR MOVES INTO THE REGION
ON THURSDAY, WITH HUMIDITY LOWERING BACK INTO THE TEENS AND LOW
20S. WARMER AND DRIER ON FRIDAY WITH EAST WINDS 5-7 MPH IN THE
MORNING SWITCHING TO WEST IN THE AFTERNOON.
REST OF TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....53-58.
* MAX HUMIDITY........49-54 PERCENT.
* WIND (20 FT)........NORTHWEST 6-9 MPH WITH GUSTS OF 12-16 MPH
DURING THE EVENING, DECREASING TO VARIABLE 2-5 MPH AFTER
MIDNIGHT.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........SOUTHWEST 5 MPH.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* 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.......2000 FT AGL INCREASING TO 6000 FT AGL LATE IN
THE MORNING.
* MIXING WINDS........NORTHWEST 5 MPH.
THURSDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........36-41 PERCENT.
* WIND (20 FT)........WEST 5-7 MPH SHIFTING TO THE SOUTHEAST AROUND
6 MPH OVERNIGHT.
* MIXING HEIGHT.......3000 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
* MIXING WINDS........WEST 5 MPH.
FORECASTER...KITSMILLER
REQUESTED BY...ANNA SIVILL
TYPE OF REQUEST...WILDFIRE
.TAG 2520337.0/MSO
.DELDT 08/20/25
.FORMATTERVERSION 2.0.0
.EMAIL ANNA.SIVILL@USDA.GOV
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