FNUS75 KMSO 190119

FWSMSO



Spot Forecast for MILE MARKER 91

National Weather Service Missoula MT

719 PM MDT Mon Aug 18 2025



Forecast is based on forecast start time of 0700 MDT on August 19. 

If conditions become unrepresentative...contact the National Weather

Service.



.DISCUSSION...Tuesday is on track to be the hottest and driest day

of the week. Thunderstorms are expected to develop late in the

day, after 1900 MDT. Thunderstorm chances will remain through

around 2200 MDT. Outflow winds to 40 mph will be the primary 

concern should an isolated storm move towards the fire. West 

winds trend higher on Wednesday with gusts in the low 20 mph range 

as a weak dry cold front passes. This will allow for a slight 

increase in MinRH, with temperatures cooling a few degrees.





.TUESDAY...



* Sky/Weather.........Mostly sunny. 

* CWR (> 0.10 Inch)...0 percent. 

* Chance Lightning....0 percent. 

* Max Temperature.....94-99. 

* Min Humidity........12-17 percent. 

* Wind (20 ft)........Variable 2-4 mph becoming west 6-9 mph with

  gusts around 16 mph in the afternoon. 

* Mixing Height.......4500 ft agl increasing to 11000 ft agl. 

* Mixing Winds........Southwest 10 mph. 

* Precip Amount.......0.00 inches. 



.TUESDAY NIGHT...



* Sky/Weather.........Partly cloudy. Chance of showers and slight 

  chance of thunderstorms in the evening. 

* CWR (> 0.10 Inch)...10 percent. 

* Chance Lightning....20 percent. 

* Min Temperature.....61-66. 

* Max Humidity........48-53 percent. 

* Wind (20 ft)........West 5-8 mph with gusts around 20 mph as

  storms pass. 

* Mixing Height.......10000 ft agl decreasing to 2000 ft agl. 

* Mixing Winds........West 10 mph. 

* Precip Amount.......0.03 inches. 



.WEDNESDAY...



* Sky/Weather.........Mostly sunny. 

* CWR (> 0.10 Inch)...0 percent. 

* Chance Lightning....0 percent. 

* Max Temperature.....89-94. 

* Min Humidity........17-22 percent. 

* Wind (20 ft)........West 5-10 mph, increasing to 8-12 mph with

  gusts around 20 mph in the afternoon.

* Mixing Height.......4000 ft agl increasing to 11500 ft agl. 

* Mixing Winds........West 10 mph. 

* Precip Amount.......0.00 inches. 



$$

Forecaster...Kitsmiller

Requested by...ART TRAHAN

Type of request...WILDFIRE

.TAG 2520183.0/MSO

.DELDT 08/18/25

.FormatterVersion 2.0.0

.EMAIL jack.currie@cskt.org