560
FNUS75 KTFX 242025
FWSTFX

Spot Forecast for Jericho Mountain...USDA Helena NF
National Weather Service Great Falls MT
225 PM MDT Tue Jun 24 2025

Forecast is based on forecast start time of 0700 MDT on June 25.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Upper level flow over the Northern Rockies will begin to back to
the southwest through the overnight hours tonight, with a push of
Pacific moisture lifting northeast and over Western Montana then
during the afternoon and evening hours on Wednesday. While this
push of Pacific moisture will generally only result in an
increase in mid- to upper level cloudiness on Wednesday an
isolated shower can`t be ruled out during the afternoon hours. A
better chance for showers and thunderstorms arrives on Thursday as
a fast moving disturbance moves over the region.

.WEDNESDAY...

Sky/weather.........Sunny (10-20 percent) then becoming partly
                    sunny (50-60 percent).
CWR.................5 percent.
Chance of thunder...10 percent.
Max temperature.....65-70.
Min humidity........24-29 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph.
 Ridgetop...........Southwest around 10 mph.
Mixing height.......9000 ft AGL increasing to 11000 ft AGL in the
                    afternoon.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (45-55 percent).
CWR.................5 percent.
Chance of thunder...12 percent.
Min temperature.....47-52.
Max humidity........55-60 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5 mph shifting to the
                    southwest overnight.
 Ridgetop...........Southwest around 10 mph.
Mixing height.......0 ft AGL.

.THURSDAY...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of
                    showers and thunderstorms in the afternoon.
CWR.................10 percent.
Chance of thunder...25 percent.
Max temperature.....63-68.
Min humidity........38-43 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
 Ridgetop...........Southwest around 10 mph.
Mixing height.......6500 ft AGL.

$$

Forecaster...Moldan
Requested by...Eric Trimble
Type of request...WILDFIRE
.TAG 2516598.0/TFX
.DELDT 06/24/25
.FormatterVersion 2.0.0
.EMAIL erictrimble22@gmail.com, tfx.ops@noaa.gov