497
FNUS75 KMSO 210811
FWSMSO
SPOT FORECAST FOR DEAD TRIANGLE 8
NATIONAL WEATHER SERVICE MISSOULA MT
211 AM MDT MON SEP 21 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE WILL RESULT IN CLEAR SKIES, LIGHT
WINDS, AND DRY CONDITIONS TODAY. SIMILAR CONDITIONS CONTINUE ON
TUESDAY, WITH A SLIGHT INCREASE IN RH AND WESTERLY WINDS IN THE
AFTERNOON TO ABOUT 12 MPH WITH ABOUT A 25% CHANCE OF EXCEEDING 15
MPH. DRY CONDITIONS PERSIST THROUGH THURSDAY, WITH THE NEXT
CHANCE FOR WIDESPREAD PRECIPITATION BEING ON FRIDAY INTO NEXT
WEEKEND.
REST OF TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....77-82.
* MIN HUMIDITY........25-30 PERCENT.
* WIND (20 FT)........VARIABLE 3-6 MPH.
* MIXING HEIGHT.......3500 FT AGL INCREASING TO 5500 FT AGL LATE IN
THE AFTERNOON.
* MIXING WINDS........SOUTHWEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....47-52.
* MAX HUMIDITY........68-73 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....75-80.
* MIN HUMIDITY........28-33 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING WEST 6-12 MPH
AFTER NOON
* MIXING HEIGHT.......2000 FT AGL INCREASING TO 7000 FT AGL.
* MIXING WINDS........SOUTH 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...MESSINA
REQUESTED BY...EDWIN FARRAND
TYPE OF REQUEST...PRESCRIBED
.TAG 2622090.0/MSO
.DELDT 09/21/26
.FORMATTERVERSION 2.0.0
.EMAIL RAYMOND.FLANAGAN@USDA.GOV,EDWIN.FARRAND@USDA.GOV
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