872
FNUS75 KMSO 161817
FWSMSO
SPOT FORECAST FOR RANSOME IAP
NATIONAL WEATHER SERVICE MISSOULA MT
1217 PM MDT TUE SEP 16 2025
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON SEPTEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE WILL BRING A WARMING AND DRYING TREND
INTO THURSDAY. AN EASTERLY GRADIENT WILL REMAIN IN PLACE INTO
WEDNESDAY MORNING, WITH WINDS BECOMING TERRAIN DRIVEN WEDNESDAY
AFTERNOON INTO THURSDAY. THE RIDGE REMAINS IN PLACE THROUGH
FRIDAY, BEFORE FLATTENING ON SATURDAY, WITH INCREASING WESTERLY
WINDS SATURDAY INTO SUNDAY AS A DRY COLD FRONT MOVES THROUGH.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....73-78.
* MIN HUMIDITY........28-33 PERCENT.
* WIND (20 FT)........EAST 3-5 MPH.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 5000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
WEDNESDAY NIGHT
* SKY/WEATHER.........CLEAR.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........54-59 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......1500 FT AGL DECREASING TO LESS THAN 100 FT
AGL IN THE LATE EVENING AND OVERNIGHT.
* MIXING WINDS........NORTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....75-80.
* MIN HUMIDITY........23-28 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING SOUTHEAST 3-5 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 6000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...LUKINBEAL
REQUESTED BY...ALIX CHRISTMAN
TYPE OF REQUEST...WILDFIRE
.TAG 2521517.8/MSO
.DELDT 09/16/25
.FORMATTERVERSION 2.0.0
.EMAIL ALIX.CHRISTMAN@USDA.GOV
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