956
FNUS75 KMSO 182000
FWSMSO
SPOT FORECAST FOR NATURE GROVE - FIRE BEHAVIOR REQUEST
NATIONAL WEATHER SERVICE MISSOULA MT
200 PM MDT FRI SEP 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON SEPTEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
RAIN WILL CONTINUE ON SATURDAY WITH MEAN ADDITIONAL
AMOUNTS DURING THE DAY AROUND 0.15 INCH, LOW END 0.05 INCH AND
HIGH END 0.35 INCH. SHOWER ACTIVITY DECREASES ON SATURDAY
AFTERNOON, FOLLOWED BY PARTIAL CLEARING ON SATURDAY NIGHT.
MILD AND DRIER CONDITIONS SET IN FOR EARLY NEXT WEEK WITH LIGHT,
DIURNALLY DRIVEN WINDS. WINDS DO PICK UP SLIGHTLY MID/LATE WEEK
EACH AFTERNOON UNDER MOSTLY DRY CONDITIONS.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.
RAIN SHOWERS IN THE MORNING, THEN CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CWR (> 0.10 INCH)...60 PERCENT.
* CHANCE LIGHTNING....20 PERCENT.
* MAX TEMPERATURE.....55-60.
* MIN HUMIDITY........77-82 PERCENT.
* WIND (20 FT)........NORTHEAST TO EAST 3-6 MPH. GUSTS TO 14 MPH
AT TIMES.
* MIXING HEIGHT.......500 FT AGL INCREASING TO 3000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........NORTHEAST 10 MPH.
* PRECIP AMOUNT.......0.11 INCHES.
SATURDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....41-46.
* MAX HUMIDITY........85-90 PERCENT.
* WIND (20 FT)........VARIABLE 1-3 MPH.
* MIXING HEIGHT.......500 FT AGL.
* MIXING WINDS........EAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
SUNDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....64-69.
* MIN HUMIDITY........43-48 PERCENT.
* WIND (20 FT)........VARIABLE 3-6 MPH THEN WEST/NORTHWEST 4-8 MPH
IN THE AFTERNOON. OCCASIONAL GUSTS TO 12 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 4500 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHWEST 5 MPH.
* PRECIP AMOUNT.......0.05-0.30 INCHES.
FORECAST DAYS 3 THROUGH 7
MONDAY
CLEAR. LOWS 45-50. HIGHS 68-73. WINDS GENERALLY LESS THAN 5 MPH
EARLY THEN NORTHWEST 4-8 MPH IN THE AFTERNOON WITH GUSTS TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 46-51. HIGHS 68-73. WINDS GENERALLY LESS THAN 5 MPH
EARLY THEN NORTHWEST 4-8 MPH IN THE AFTERNOON WITH GUSTS TO 15
MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 46-51. HIGHS 67-72. WINDS GENERALLY LESS THAN 5 MPH
EARLY THEN NORTHWEST 5-10 MPH IN THE AFTERNOON WITH GUSTS TO 20
MPH.
THURSDAY
MOSTLY CLEAR. LOWS 46-51. HIGHS 71-76. WINDS GENERALLY LESS THAN 5 MPH
EARLY THEN SOUTHWEST 5-10 MPH IN THE AFTERNOON WITH GUSTS TO 20
MPH.
FRIDAY
PARTLY CLOUDY. LOWS 48-53. HIGHS 69-74. WINDS GENERALLY LESS THAN 5 MPH
EARLY THEN SOUTHWEST 5-10 MPH IN THE AFTERNOON WITH GUSTS TO 20
MPH.
FORECASTER...BOOTH
REQUESTED BY...DAVID HOOD
TYPE OF REQUEST...WILDFIRE
.TAG 2621219.13/MSO
.DELDT 09/18/26
.FORMATTERVERSION 2.0.0
.EMAIL MATTHEW.YOUNG@USDA.GOV,CHRISTOPHER.MARABETTA@USDA.GOV,KODIE.MCQUAY@USDA.GOV,2026.NATUREGROVE.PLANS@FIRENET.GOV,ELDON.JOHNSON@USDA.GOV
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