493
FNUS75 KMSO 191352
FWSMSO
SPOT FORECAST FOR WILLIAMS CRK. FIRE
NATIONAL WEATHER SERVICE MISSOULA MT
752 AM MDT SUN JUL 19 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
DRY, WINDY CONDITIONS CONTINUE TONIGHT. THE ELEVATED
WINDS WILL PREVENT HUMIDITY FROM RECOVERING OVER 50% TONIGHT, AND
THEN TOMORROW NIGHT THERMAL BELTS BECOME ESTABLISHED ALLOWING
MARGINAL HUMIDITY RECOVERY AGAIN. LATE MONDAY INTO TUESDAY THE
RIDGE BUILDS BACK UP AND STARTS TO BRING MORE SOUTHWEST MONSOON
MOISTURE NORTH AGAIN, CAUSING AN INCREASE IN HUMIDITY.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....52-57.
* MAX HUMIDITY........43-48 PERCENT.
* WIND (20 FT)........WEST 5-14 MPH.
* MIXING HEIGHT.......2500 FT AGL DECREASING TO 500 FT AGL IN THE
LATE EVENING AND OVERNIGHT.
* MIXING WINDS........WEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
MONDAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....71-76.
* MIN HUMIDITY........23-28 PERCENT.
* WIND (20 FT)........NORTHEAST AROUND 5 MPH SHIFTING TO THE NORTH
5-6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 7500 FT AGL.
* MIXING WINDS........NORTH 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
MONDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....60-65.
* MAX HUMIDITY........48-53 PERCENT.
* WIND (20 FT)........NORTHWEST AROUND 6 MPH SHIFTING TO THE EAST
7-8 MPH OVERNIGHT.
* MIXING HEIGHT.......5500 FT AGL DECREASING TO LESS THAN 100 FT
AGL.
* MIXING WINDS........NORTHEAST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....73-78.
* MIN HUMIDITY........27-32 PERCENT.
* WIND (20 FT)........EAST 5-8 MPH.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 8000 FT AGL.
* MIXING WINDS........NORTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...LEACH
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 2617747.0/MSO
.DELDT 07/19/26
.FORMATTERVERSION 2.0.0
.EMAIL NMSAMSEL@GMAIL.COM
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