FNUS75 KMSO 092121

FWSMSO



Spot Forecast for Blackfoot TREX

National Weather Service Missoula MT

321 PM MDT Fri May 9 2025



Forecast is based on ignition time of 1600 MDT on May 09. 

If conditions become unrepresentative...contact the National Weather

Service.



.DISCUSSION...High pressure will break down on Saturday. Upper

level flow will become southwesterly with an upper level jet

positioned over the Northern Rockies. The result will be windy 

conditions at the surface with chances for thunderstorms later in 

the afternoon and evening. Expect winds to become westerly around 

midday, then increasing considerably by about 1400 MDT. There will

be about a 60% chance that gusts will exceed 30 mph. There will 

be about a 20% chance for thunderstorms. Storms will be capable of

producing erratic outflow winds and small hail.





.SATURDAY...



* 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.....81-86. 

* Min Humidity........14-19 percent. 

* Wind (20 ft)........Variable 2-4 mph becoming west 10-15 mph

  around midday. Winds increase at about 1400 MDT to 15-20 mph 

  with gusts to 30 mph. 

* Mixing Height.......3000 ft agl increasing to 11000 ft agl. 

* Mixing Winds........South 15 mph. 

* Precip Amount.......0.01 inches. 



$$

Forecaster...Messina

Requested by...Melisa Griffith

Type of request...PRESCRIBED

.TAG 2512084.11/MSO

.DELDT 05/09/25

.FormatterVersion 2.0.0

.EMAIL melisa.griffith@mt.gov