293
FNUS75 KMSO 142046
FWSMSO
SPOT FORECAST FOR ALDER DITCH
NATIONAL WEATHER SERVICE MISSOULA MT
246 PM MDT WED OCT 14 2026
FORECAST IS BASED ON IGNITION TIME OF 1300 MDT ON OCTOBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THE UPPER RIDGE AXIS BUILDS OVER THE REGION BY
FRIDAY. IT WILL BE MILD WITH MINIMUM HUMIDITY LOWERING DOWN INTO
THE 30S PERCENT ON THURSDAY, AND POSSIBLY DOWN INTO THE UPPER 20S
ON FRIDAY. THE HUGE CAVEAT WILL BE THE MIXING HEIGHTS. AS THE
RIDGE MOVES OVERHEAD, 1025 MILLIBAR SURFACE PRESSURE WILL PREVENT
THE MIXING LAYER FROM FORMING VERY WELL, POSSIBLY AS LOW AS 1500
FEET ON FRIDAY. WINDS WILL BE WEAK AND TERRAIN-DRIVEN.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....57-61.
* MIN HUMIDITY........36-41 PERCENT.
* WIND (20 FT)........NORTHEAST 5 TO 8 MPH IN THE MORNING BECOMING
SOUTHEAST 2 TO 5 MPH BY THE AFTERNOON.
* MIXING HEIGHT.......2000 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
THURSDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SOME FROST.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....34-38.
* MAX HUMIDITY........80-85 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......LESS THAN 100 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY(MAINLY HIGH CLOUDS). SOME
FROST IN THE MORNING.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....62-66.
* MIN HUMIDITY........28-34 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH BECOMING SOUTHEAST 2 TO 5
MPH.
* MIXING HEIGHT.......1500 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...NOBLE
REQUESTED BY...ART TRAHAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2623789.0/MSO
.DELDT 10/14/26
.FORMATTERVERSION 2.0.0
.EMAIL ART.TRAHAN@CSKT.ORG,DARRELL.CLAIRMONT@CSKT.ORG,NICK.MAYS@CSKT.ORG,JACK.CURRIE@CSKT.ORG
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