309
FNUS75 KMSO 021509
FWSMSO
SPOT FORECAST FOR MARSHALL WOODS UNIT 1
NATIONAL WEATHER SERVICE MISSOULA MT
909 AM MDT FRI OCT 2 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON OCTOBER 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE ON SUNDAY WILL TRANSITION TO WESTERLY
FLOW ALOFT ON MONDAY. FOR SUNDAY, EXPECT DRY CONDITIONS WITH LIGHT
AND VARIABLE WINDS RESULTING IN POOR SMOKE DISPERSION. DISPERSION
WILL BE BETTER STARTING ON MONDAY. WEST WINDS INCREASE ON MONDAY
AND TUESDAY, WITH ABOUT A 40-50% CHANCE FOR GUSTS TO EXCEED 20
MPH ON MONDAY AND ABOUT A 25% CHANCE ON TUESDAY. MINIMUM RH STAYS
IN THE MID-20% NEIGHBORHOOD, BOTTOMING OUT AROUND 1500-1600 MDT.
WINDS RELAX BY WEDNESDAY AS HIGH PRESSURE BUILDS BACK. THE NEXT
CHANCE FOR PRECIPITATION WILL BE FRIDAY- SATURDAY, THOUGH ONLY
ABOUT 30% OF MODEL SOLUTIONS SHOW GOOD CHANCES FOR LOW PRESSURE TO
DEVELOP.
SUNDAY
* SKY/WEATHER.........SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....76-81.
* MIN HUMIDITY........21-26 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 3500 FT AGL LATE IN
THE AFTERNOON.
* MIXING WINDS........SOUTH 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SUNDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....41-46.
* MAX HUMIDITY........56-61 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING SOUTHEAST 5-6 MPH
OVERNIGHT.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
MONDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....76-81.
* MIN HUMIDITY........21-26 PERCENT.
* WIND (20 FT)........VARIABLE 2-5 MPH BECOMING WEST 5-10 MPH WITH
GUSTS OF 18 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......2000 FT AGL INCREASING TO 6000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHWEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECAST DAYS 3 THROUGH 5
TUESDAY
MOSTLY CLEAR. LOWS 42-47. HIGHS 70-75. MIN RH 21-26. WEST WINDS
5-10 MPH WITH GUSTS OF 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39-44. HIGHS 70-75. DIURNAL TERRAIN WINDS TO
10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 39-44. HIGHS 71-76. WINDS GENERALLY LESS THAN
5 MPH.
FORECASTER...MESSINA
REQUESTED BY...STRYKER CLARK
TYPE OF REQUEST...PRESCRIBED
.TAG 2622959.0/MSO
.DELDT 10/02/26
.FORMATTERVERSION 2.0.0
.EMAIL STRYKER.CLARK@USDA.GOV
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