151
FNUS75 KMSO 181121
FWSMSO

Spot Forecast for Moose Fire
National Weather Service Missoula MT
521 AM MDT Tue Aug 18 2026

Forecast is based on forecast start time of 0600 MDT on August 18.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...The IAP forecast still appears to be on track. A
disturbance will be moving through the area causing a slight
increase in winds along with another round of afternoon showers
and thunderstorms. Storms today will have a better potential for
outflow winds. A ridge of high pressure will build over the area
starting on Wednesday and lasting through at least Friday causing
a warming and drying trend.

.TODAY...

* Sky/Weather.........Partly cloudy. Chance of rain showers and
  slight chance of thunderstorms in the afternoon.
* CWR (> 0.10 Inch)...10 percent.
* Chance Lightning....20 percent.
* Max Temperature.....68-73.
* Min Humidity........32-37 percent.
* Wind (20 ft)........Southwest around 5 mph shifting to the west
  5-7 mph with gusts to around 20 mph on ridgetops in the
  afternoon.
* Mixing Height.......1000 ft agl increasing to 9000 ft agl in the
  afternoon.
* Mixing Winds........West 10-12 mph.
* Precip Amount.......0.00 inches.

.TONIGHT...

* Sky/Weather.........Partly cloudy. Very slight (<10%) chance of
  thunderstorm during early evening.
* CWR (> 0.10 Inch)...less than 10 percent.
* Chance Lightning....Up to 10 percent.
* Min Temperature.....52-57.
* Max Humidity........40-45 percent.
* Wind (20 ft)........West around 5 mph with gusts to around 20
  mph on ridgetops shifting to the southwest 5-6 mph overnight.
* Mixing Height.......5000 ft agl decreasing to 500 ft agl early in
  the evening.
* Mixing Winds........West 5 mph.
* Precip Amount.......0.00 inches.

.WEDNESDAY...

* Sky/Weather.........Mostly sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....70-75.
* Min Humidity........20-25 percent.
* Wind (20 ft)........Southwest around 5 mph shifting to the west
  5-6 mph with gusts to around 20 mph on ridgetops in the
  afternoon.
* Mixing Height.......3000 ft agl increasing to 8000 ft agl in the
  afternoon.
* Mixing Winds........Southwest to west 10 mph.
* Precip Amount.......0.00 inches.


$$
Forecaster...Smith
Requested by...Ron Brunell
Type of request...WILDFIRE
.TAG 2619412.7/MSO
.DELDT 08/18/26
.FormatterVersion 2.0.0
.EMAIL julia.goar@mt.gov,2026.moose.plans@firenet.gov,ron_brunell@firenet.gov