935
FNUS75 KMSO 172112
FWSMSO
SPOT FORECAST FOR NATURE GROVE - FIRE BEHAVIOR REQUEST
NATIONAL WEATHER SERVICE MISSOULA MT
312 PM MDT THU SEP 17 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
CLOUDY, COOL, WITH ON AND OFF SHOWERS AND
THUNDERSTORMS FROM FRIDAY AFTERNOON THROUGH THE DAY ON SATURDAY.
CONVECTION ON FRIDAY WILL BE CAPABLE OF PRODUCING LOCALIZED
INTENSE RAINFALL CAPABLE OF PRODUCING FLASH FLOODING AND DEBRIS
FLOWS IN SENSITIVE AREAS AND STEEP TERRAIN. VERY HIGH CHANCE FOR
WETTING RAIN THROUGH THE FORECAST PERIOD.
FRIDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CWR (> 0.10 INCH)...70 PERCENT.
* CHANCE LIGHTNING....70 PERCENT.
* MAX TEMPERATURE.....59-64.
* MIN HUMIDITY........65-70 PERCENT.
* WIND (20 FT)........VARIABLE 2-7 MPH WITH GUSTS TO 15 MPH.
* MIXING HEIGHT.......NEAR 500 FT AGL IN THE MORNING INCREASING TO
3000 FT AGL IN THE AFTERNOON.
* MIXING WINDS........VARIABLE/EAST 5 MPH.
* PRECIP AMOUNT.......0.03-0.30 INCHES.
FRIDAY NIGHT
* SKY/WEATHER.........CLOUDY. CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN SHOWERS.
* CWR (> 0.10 INCH)...90 PERCENT.
* CHANCE LIGHTNING....80 PERCENT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........94-99 PERCENT.
* WIND (20 FT)........VARIABLE 1-4 MPH WITH GUSTS TO 10 MPH.
* MIXING HEIGHT.......DECREASING TO 500 FT AGL.
* MIXING WINDS........EAST 5 MPH.
* PRECIP AMOUNT.......0.05-0.20 INCHES.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.
RAIN SHOWERS LIKELY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CWR (> 0.10 INCH)...70 PERCENT.
* CHANCE LIGHTNING....20 PERCENT.
* MAX TEMPERATURE.....54-59.
* MIN HUMIDITY........81-86 PERCENT.
* WIND (20 FT)........VARIABLE/NORTH 2-6 MPH WITH GUSTS TO 15 MPH.
* MIXING HEIGHT.......INCREASING TO 2000 FT AGL.
* MIXING WINDS........NORTH 5 MPH.
* PRECIP AMOUNT.......0.02-0.40 INCHES.
FORECAST DAYS 3 THROUGH 7
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS 44-49. HIGHS
65-70. WINDS GENERALLY LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46-51. HIGHS 67-72. WINDS GENERALLY LESS THAN
5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 46-51. HIGHS 65-70. WINDS GENERALLY LESS THAN
5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 44-49. HIGHS 63-68.
THURSDAY
PARTLY CLOUDY. LOWS 44-49. HIGHS 66-71.
FORECASTER...PARKER
REQUESTED BY...DAVID HOOD
TYPE OF REQUEST...WILDFIRE
.TAG 2621219.12/MSO
.DELDT 09/17/26
.FORMATTERVERSION 2.0.0
.EMAIL 2026.NATUREGROVE.PLANS@FIRENET.GOV,ELDON.JOHNSON@USDA.GOV,CHRISTOPHER.MARABETTA@USDA.GOV,MATTHEW.YOUNG@USDA.GOV,KODIE.MCQUAY@USDA.GOV
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