112
FNUS75 KTFX 212132
FWSTFX

Spot Forecast for Jericho Mountain...USDA Helena NF
National Weather Service Great Falls MT
332 PM MDT Sat Jun 21 2025

Forecast is based on forecast start time of 0700 MDT on June 22.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A cold low pressure system will bring widespread rain and
mountain snow for much the day on Sunday. Total liquid equivalent
precipitation amounts will generally range between a quarter to
half inch, with snowfall amounts up to a couple of inches. Drier
conditions move in Sunday night into Monday, but diurnal heating
will interact with the lingering surface moisture for scattered
showers and isolated thunderstorms Monday afternoon.

.SUNDAY...

Sky/weather.........Cloudy (95-100 percent). Snow in the morning,
                    changing to rain in the afternoon.
CWR.................90 percent.
Chance of thunder...15 percent.
Max temperature.....35-40.
Min humidity........83-88 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 10 to 15 mph.
 Ridgetop...........North around 20 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Northwest around 15 mph.

.SUNDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent) then becoming
                    partly cloudy (30-40 percent). Chance of rain
                    and snow in the evening.
CWR.................15 percent.
Chance of thunder...10 percent.
Min temperature.....29-34.
Max humidity........93-98 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph.
 Ridgetop...........West around 15 mph.
Mixing height.......0 ft AGL.
Transport winds.....West around 10 mph.

.MONDAY...

Sky/weather.........Sunny (15-25 percent) then becoming partly
                    sunny (50-60 percent). Chance of rain showers
                    in the afternoon.
CWR.................5 percent.
Chance of thunder...20 percent.
Max temperature.....51-56.
Min humidity........40-60 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds around 10 mph.
 Ridgetop...........Southwest around 15 mph.
Mixing height.......7500 ft AGL.
Transport winds.....Southwest around 10 mph.

$$
Forecaster...Greely
Requested by...Eric Trimble
Type of request...WILDFIRE
.TAG 2516363.0/TFX
.DELDT 06/21/25
.FormatterVersion 2.0.0
.EMAIL erictrimble22@gmail.com, tfx.ops@noaa.gov