Spot Forecast
Issued by NWS Missoula, MT

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340
FNUS75 KMSO 151608
FWSMSO

Spot Forecast for Isabella Fire
National Weather Service Missoula MT
1008 AM MDT Mon Sep 15 2025

Forecast is based on forecast start time of 1100 MDT on September 15.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

.DISCUSSION...Rain showers will continue through this afternoon as
a low pressure system moves towards and east of the Divide. Light
and variable winds will continue through early afternoon before
becoming west by mid-afternoon. An easterly wind shift is expected
tonight into Tuesday. Winds will turn from the southeast Tuesday
afternoon. High pressure will bring a warming and drying trend
Tuesday into Saturday this week.


.REST OF TODAY...

* Sky/Weather.........Cloudy. Rain showers likely.
* CWR (> 0.10 Inch)...70 percent.
* Chance Lightning....Up to 10 percent.
* Max Temperature.....54-59.
* Min Humidity........84-89 percent.
* Wind (20 ft)........Variable 1-2 mph becoming west 4-7 mph this
  afternoon.
* Mixing Height.......2500 ft agl.
* Mixing Winds........West 5 mph.
* Precip Amount.......0.07-0.20 inches.

.TONIGHT...

* Sky/Weather.........Partly cloudy.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Min Temperature.....44-49.
* Max Humidity........85-90 percent.
* Wind (20 ft)........West 2-5 mph in the evening becoming east
  2-4 mph overnight.
* Mixing Height.......1000 ft agl.
* Mixing Winds........Northeast 5 mph.
* Precip Amount.......0.00 inches.

.TUESDAY...

* Sky/Weather.........Mostly sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....70-75.
* Min Humidity........49-54 percent.
* Wind (20 ft)........East 3-6 mph becoming southeast 4-7 mph in
  the afternoon.
* Mixing Height.......3500 ft agl increasing to 5000 ft agl late in
  the afternoon.
* Mixing Winds........East 10 mph.
* Precip Amount.......0.00 inches.

$$
Forecaster...Lukinbeal
Requested by...Dusty Pierson
Type of request...WILDFIRE
.TAG 2521686.6/MSO
.DELDT 09/15/25
.FormatterVersion 2.0.0
.EMAIL jennifer.kitsmiller@noaa.gov