878
FNUS75 KMSO 312203
FWSMSO
SPOT FORECAST FOR NATURE GROVE
NATIONAL WEATHER SERVICE MISSOULA MT
403 PM MDT MON AUG 31 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON SEPTEMBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE STARTS THE DAY WITH DIURNAL LIGHT
WINDS AND STABLE LAYER. THEN MONSOON MOISTURE SURGES NORTHWARD
DURING THE AFTERNOON. THUNDERSTORMS ARE LOW PROBABILITY PRIOR TO
7 PM, AFTER 7 PM ANY STORMS WILL BE CAPABLE OF PRODUCING OUTFLOW
GUSTS 30 TO 40 MPH. LIGHT RAIN SHOWERS WILL DOMINATE THE OVERNIGHT
THROUGH WEDNESDAY WITH A HIGH PROBABLY OF A WETTING RAIN.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
* CHANCE LIGHTNING....UP TO 10 PERCENT.
* MAX TEMPERATURE.....74-79.
* MIN HUMIDITY........16-21 PERCENT.
* WIND (20 FT)........VARIABLE 2-4 MPH BECOMING SOUTHWEST 3-8 MPH
WITH GUSTS TO 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......10000 FT AGL LATE IN THE AFTERNOON.
* MIXING WINDS........SOUTH 10 MPH.
* PRECIP AMOUNT.......0.01 INCHES.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN OVERNIGHT.
* CWR (> 0.10 INCH)...40 PERCENT.
* CHANCE LIGHTNING....20 PERCENT.
* MIN TEMPERATURE.....47-52.
* MAX HUMIDITY........74-79 PERCENT.
* WIND (20 FT)........SOUTH 5-8 MPH WITH GUSTS TO AROUND 20 MPH
BECOMING VARIABLE 3-6 MPH.
* MIXING HEIGHT.......2500 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
* MIXING WINDS........SOUTH 10 MPH.
* PRECIP AMOUNT.......0.06-0.30 INCHES.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CWR (> 0.10 INCH)...70 PERCENT.
* CHANCE LIGHTNING....30 PERCENT.
* MAX TEMPERATURE.....60-65.
* MIN HUMIDITY........42-47 PERCENT.
* WIND (20 FT)........VARIABLE 3-6 MPH BECOMING WEST AROUND 8 MPH
WITH GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 5000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHWEST 10 MPH.
* PRECIP AMOUNT.......0.23-0.43 INCHES.
FORECASTER...BEC
REQUESTED BY...KEELY FISHMAN
TYPE OF REQUEST...WILDFIRE
.TAG 2620340.9/MSO
.DELDT 08/31/26
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.BIDWELL@USDA.GOV,2026.NATUREGROVE.PLANS@FIRENET.GOV,CLINT.MENDENHALL@USDA.GOV,CLINT_MENDENHALL@FIRENET.GOV,CHRISTOPHER.MARABETTA@USDA.GOV,CORY.RENNAKER@USDA.GOV,MTMDC@FIRENET.GOV,DAVID.TINGLEY@USDA.GOV,ANDREW_BIDWELL@FIRENET.GOV,MATTHEW.YOUNG@USDA.GOV
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