121
FNUS75 KMSO 212314
FWSMSO
SPOT FORECAST FOR DEER CREEK
NATIONAL WEATHER SERVICE MISSOULA MT
514 PM MDT FRI AUG 21 2026
FORECAST IS BASED ON FORECAST START TIME OF 1900 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING FOR DRY THUNDERSTORMS...
DISCUSSION
LIGHT SHOWERS ARE POSSIBLE TOWARDS DAYBREAK SATURDAY
MORNING AND COULD BRING SOME GUSTY WINDS TO 20 MPH. OTHERWISE,
LIGHT WINDS OVERNIGHT ARE ANTICIPATED WITH MODERATELY POOR RH
RECOVERIES ON MIDSLOPES AND RIDGES. INCREASED CLOUD COVER SATURDAY
WILL KEEP TEMPERATURES COOLER, WITH THE THREAT OF THUNDERSTORMS
BEGINNING LATE IN THE AFTERNOON AND CONTINUING OVERNIGHT. WHILE
STORM CORES WILL HAVE MOISTURE ASSOCIATED WITH THEM, THE FAST
MOVING NATURE OF STORMS WILL LIMIT PRECIPITATION TOTALS OVERALL.
HIGH RESOLUTION MODELS SHOW THE POTENTIAL FOR ANOTHER ROUND OF
STORMS BETWEEN 2300 MDT SATURDAY AND 0400 MDT SUNDAY. GUSTY AND
ERRATIC OUTFLOW WINDS 40 TO 50 MPH WILL BE POSSIBLE WITH STORMS. A
COLD FRONT THEN PASSES SUNDAY MORNING, BRINGING BREEZY CONDITIONS
AND LOWERING RHS IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF HIGH BASED
SHOWERS OVERNIGHT. LOW CHANCE OF A THUNDERSTORM.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
* CHANCE LIGHTNING....10 PERCENT.
* MIN TEMPERATURE.....60-65.
* MAX HUMIDITY........BOTTOM 75-80 PERCENT. TOP 47-52 PERCENT.
* WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 1-5 MPH.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........EAST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SATURDAY
* SKY/WEATHER.........CLOUDY THEN BECOMING PARTLY CLOUDY. SLIGHT
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
IN THE LATE AFTERNOON. GUSTY AND ERRATIC WINDS WITH THUNDERSTORMS.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
* CHANCE LIGHTNING....20 PERCENT.
* MAX TEMPERATURE.....BOTTOM 87-92. TOP 82-87.
* MIN HUMIDITY........17-22 PERCENT.
* WIND (20 FT)........VARIABLE 2-4 MPH BECOMING SOUTH AROUND 5 MPH
BY MID DAY, THEN SOUTHWESTERLY 3-6 MPH IN THE LATE AFTERNOON.
GUSTS TO 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......2000 FT AGL INCREASING TO 8000 FT AGL.
* MIXING WINDS........SOUTH 10 MPH.
* PRECIP AMOUNT.......0.00-0.10 INCHES.
SATURDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. GUSTY AND ERRATIC WINDS WITH
THUNDERSTORMS.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
* CHANCE LIGHTNING....25 PERCENT.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........60-65 PERCENT.
* WIND (20 FT)........SOUTHWEST AROUND 5 MPH WITH GUSTS TO 15 MPH.
* MIXING HEIGHT.......4000 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
* MIXING WINDS........SOUTHWEST 10 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SUNDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....BOTTOM 75-80. TOP 70-75.
* MIN HUMIDITY........19-24 PERCENT.
* WIND (20 FT)........SOUTHWEST 5-12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 8000 FT AGL.
* MIXING WINDS........SOUTHWEST 15 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...JENNK
REQUESTED BY...DYLAN KOPITZKE
TYPE OF REQUEST...WILDFIRE
.TAG 2620122.3/MSO
.DELDT 08/21/26
.FORMATTERVERSION 2.0.0
.EMAIL AAKING@MT.GOV,MTKIC@FIRENET.GOV,DKOPITZKE@MT.GOV
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