578
FNUS75 KMSO 142109
FWSMSO

Spot Forecast for Nature Grove - Fire Behavior Request
National Weather Service Missoula MT
309 PM MDT Mon Sep 14 2026

Forecast is based on forecast start time of 0600 MDT on September 15.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...A gradual warm-up and drying trend is expected
Tuesday into Wednesday as high pressure develops into the region.
Terrain driven winds are expected each day, becoming southeast
overnight into the morning hours and west-northwest in the
afternoon. Increasing chance for showers and thunderstorms late
Thursday into Friday as monsoon moisture returns.

.TUESDAY...

* Sky/Weather.........Partly cloudy.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....60-65.
* Min Humidity........36-41 percent.
* Wind (20 ft)........Southeast 2-5 mph in the morning becoming
  northwest 5-10 mph in the afternoon.
* Mixing Height.......3000 ft agl increasing to 5500 ft agl in the
  afternoon.
* Mixing Winds........South 10 mph.
* Precip Amount.......0.00 inches.

.TUESDAY NIGHT...

* Sky/Weather.........Mostly cloudy.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Min Temperature.....34-39.
* Max Humidity........74-79 percent.
* Wind (20 ft)........Northwest 3-6 mph in the evening becoming
  southeast 2-5 mph overnight.
* Mixing Height.......500 ft agl.
* Mixing Winds........North 5 mph.
* Precip Amount.......0.00 inches.

.WEDNESDAY...

* Sky/Weather.........Mostly sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....63-68.
* Min Humidity........33-38 percent.
* Wind (20 ft)........Variable 1-3 mph becoming upslope 3-6 mph in
  the afternoon.
* Mixing Height.......3000 ft agl increasing to 4500 ft agl in the
  afternoon.
* Mixing Winds........North 5 mph.
* Precip Amount.......0.00 inches.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...
Partly cloudy with chance of showers and slight chance of
thunderstorms. Lows 41-46. Highs 68-73. Diurnal terrain winds to 5
mph.
.FRIDAY...
Showers likely and chance of thunderstorms. Lows 46-51. Highs
61-66. Diurnal terrain winds to 5 mph.
.SATURDAY...
Partly cloudy with chance of showers and slight chance of
thunderstorms. Lows 42-47. Highs 62-67. Diurnal terrain winds to
10 mph.
.SUNDAY...
Mostly clear. Lows 43-48. Highs 65-70. Diurnal terrain winds to
10 mph.
.MONDAY...
Mostly clear. Lows 43-48. Highs 67-72. Diurnal terrain winds to
10 mph.

$$
Forecaster...Lukinbeal
Requested by...David Hood
Type of request...WILDFIRE
.TAG 2621219.9/MSO
.DELDT 09/14/26
.FormatterVersion 2.0.0
.EMAIL matthew.young@usda.gov,Eldon.Johnson@usda.gov,2026.naturegrove.plans@firenet.gov,christopher.marabetta@usda.gov,Kodie.McQuay@usda.gov