650
FNUS75 KMSO 121022
FWSMSO
SPOT FORECAST FOR 2RB RX
NATIONAL WEATHER SERVICE MISSOULA MT
422 AM MDT TUE MAY 12 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MAY 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...
DISCUSSION
RH'S SHOULD GO BELOW 30 PERCENT BY 11 AM AND
CONTINUE TO FALL THEREAFTER. THE HIGHEST WIND GUSTS WILL OCCUR
1300 TO 1800 AND COULD RANGE 13 TO 17 MPH (25TH TO 75TH PERCENTILE
RANGE). HIGH CLOUDS ARE EXPECTED TO INCREASE SLIGHTLY THIS
AFTERNOON, BUT REMAIN AT OR ABOVE 30,000 FEET MSL. POOR RH
RECOVERY EXPECTED TONIGHT WITH STRONG THERMAL BELT. A FEW
THUNDERSTORMS BY WEDNESDAY AFTERNOON COULD PRODUCE SEVERE AND
ERRATIC OUTFLOWS RANGING BETWEEN 60 AND 80 MPH. THE BACKGROUND
WINDS WILL BE STRONG SOUTHWEST WINDS THEN SWITCHING TO THE WEST
WITH THE COLD FRONT PASSAGE BY EARLY EVENING. IT WILL BE MILD WITH
MINIMUM RHS A SEVERAL PERCENT HIGHER THAN TODAY.
REST OF TODAY
* SKY/WEATHER.........SUNNY WITH HIGH CLOUDS.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....73-76.
* MIN HUMIDITY........13-17 PERCENT.
* WIND (20 FT)........SOUTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
5 TO 8 MPH WITH GUSTS TO 13 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL INCREASING TO 8500 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHWEST 16 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........31-37 PERCENT.
* WIND (20 FT)........SOUTHWEST 5 TO 8 MPH SHIFTING TO THE
SOUTHEAST 7-9 MPH OVERNIGHT.
* MIXING HEIGHT.......7500 FT AGL DECREASING TO 500 FT AGL.
* MIXING WINDS........SOUTHEAST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CWR (> 0.10 INCH)...20 PERCENT.
* CHANCE LIGHTNING....30 PERCENT.
* MAX TEMPERATURE.....70-75.
* MIN HUMIDITY........17-22 PERCENT.
* WIND (20 FT)........WINDY. SOUTHEAST 9-12 MPH WITH GUSTS TO
AROUND 25 MPH INCREASING TO SOUTHWEST 22-30 MPH WITH GUSTS TO
AROUND 40 MPH IN THE AFTERNOON. WINDS SHIFT TO WEST 25 MPH WITH
GUSTS TO 50 MPH WITH COLD FRONT PASSAGE BY 6PM.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 5000 FT AGL LATE
IN THE MORNING, THEN INCREASING TO 8000 FT AGL EARLY IN THE
AFTERNOON DECREASING TO 4000 FT AGL LATE IN THE AFTERNOON.
* MIXING WINDS........SOUTHWEST 40 MPH BECOMING WEST 40 MPH.
* PRECIP AMOUNT.......0.06 INCHES.
FORECASTER...NOBLE
REQUESTED BY...SAM SULSER
TYPE OF REQUEST...PRESCRIBED
.TAG 2613366.0/MSO
.DELDT 05/12/26
.FORMATTERVERSION 2.0.0
.EMAIL SAMUEL.SULSER@USDA.GOV
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