185
FNUS75 KMSO 161357
FWSMSO
SPOT FORECAST FOR MORRISON PEAK RX
NATIONAL WEATHER SERVICE MISSOULA MT
757 AM MDT FRI OCT 16 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SATURDAY BEGINS STABLE WITH STRONG INVERSIONS, A DRY
COLD FRONT WILL DESTABILIZE THE ATMOSPHERE DURING THE AFTERNOON.
THE INVERSION WILL LIKELY REMAIN IN PLACE THROUGH NOON AND BE
COMPLETELY ERODED BETWEEN 1 AND 3 PM. MIN RHS WERE EDITED UP BY
5% DUE TO OBSERVATIONS FROM QD1, STILL RHS IN THE 20S ARE
EXPECTED. WINDS WILL INCREASE AS THE INVERSION ERODES, IN THE
SHELTERED LOWER ELEVATIONS WINDS 10 TO 15 MPH WILL BE COMMON,
WHILE GUSTS UP TO 30 MPH WILL BE POSSIBLE ALONG THE RIDGE, ABOVE
4000 FEET.
HIGH PRESSURE QUICKLY REBUILDS ON SUNDAY WITH A RETURN TO STABLE
CONDITIONS AND LIGHT WINDS.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY. SOME FROST EARLY IN THE
MORNING.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....62-67.
* MIN HUMIDITY........24-29 PERCENT.
* WIND (20 FT)........VARIABLE 4-8 MPH BECOMING SOUTHWEST 10-15
MPH WITH GUSTS UP TO 30 MPH ALONG THE RIDGE LINE IN THE
AFTERNOON.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 5500 FT AGL LATE IN
THE AFTERNOON.
* MIXING WINDS........SOUTHWEST 15 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SATURDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG OVERNIGHT.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....29-34.
* MAX HUMIDITY........95-100 PERCENT.
* WIND (20 FT)........WEST 5-9 MPH IN THE EVENING BECOMING VARIABLE
2-4 MPH.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........WEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SUNDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....56-61.
* MIN HUMIDITY........41-46 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 4000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHWEST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...BEC
REQUESTED BY...GEOFFREY FARINHOLT
TYPE OF REQUEST...PRESCRIBED
.TAG 2623883.0/MSO
.DELDT 10/16/26
.FORMATTERVERSION 2.0.0
.EMAIL GFARINHOLT@BLM.GOV,COLANDER@BLM.GOV
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