538
FNUS75 KMSO 232122
FWSMSO
SPOT FORECAST FOR BLACKFOOT TREX
NATIONAL WEATHER SERVICE MISSOULA MT
322 PM MDT THU APR 23 2026
FORECAST IS BASED ON IGNITION TIME OF 1600 MDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
UNSETTLED AND UNSEASONABLY COLD WEATHER WILL PERSIST
THROUGH THE WEEKEND. THERE WILL BE CHANCES FOR THUNDER THIS
AFTERNOON (25% CHANCE) AND AGAIN ON FRIDAY (ABOUT 10%). EXPECT
SNOW SHOWERS INTO FRIDAY MORNING, 1 TO 3 INCHES OF SNOW BY MIDDAY
FRIDAY. TOTAL LIQUID PRECIPITATION AMOUNT BY SATURDAY MORNING OF
0.3 TO 0.5 INCHES. NORTHWEST WINDS ON FRIDAY WILL BECOME GUSTY TO
ABOUT 20 MPH AFTER NOON.
REST OF TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS.
* CWR (> 0.10 INCH)...30 PERCENT.
* CHANCE LIGHTNING....25 PERCENT.
* MAX TEMPERATURE.....30-35.
* MIN HUMIDITY........70-75 PERCENT.
* WIND (20 FT)........NORTHWEST 6-12 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* MIXING WINDS........NORTHWEST 15 MPH.
* PRECIP AMOUNT.......0.03 INCHES.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW IN THE EVENING, THEN SNOW
LIKELY OVERNIGHT. PATCHY FOG OVERNIGHT.
* CWR (> 0.10 INCH)...60 PERCENT.
* CHANCE LIGHTNING....UP TO 10 PERCENT.
* MIN TEMPERATURE.....19-24.
* MAX HUMIDITY........94-99 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......4000 FT AGL DECREASING TO 1000 FT AGL EARLY
IN THE EVENING.
* MIXING WINDS........NORTH 10 MPH.
* PRECIP AMOUNT.......0.12 INCHES.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG IN THE MORNING.
CHANCE OF SNOW.
* CWR (> 0.10 INCH)...10 PERCENT.
* CHANCE LIGHTNING....UP TO 10 PERCENT.
* MAX TEMPERATURE.....39-44.
* MIN HUMIDITY........40-45 PERCENT.
* WIND (20 FT)........VARIABLE 3-6 MPH BECOMING NORTHWEST 10-15
MPH WITH GUSTS OF 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......2000 FT AGL INCREASING TO 7500 FT AGL.
* MIXING WINDS........NORTHWEST 15 MPH.
* PRECIP AMOUNT.......0.01 INCHES.
FORECASTER...MESSINA
REQUESTED BY...M. JACOB
TYPE OF REQUEST...PRESCRIBED
.TAG 2610491.4/MSO
.DELDT 04/23/26
.FORMATTERVERSION 2.0.0
.EMAIL MARTIN.JACOB@USDA.GOV
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