533
FNUS75 KTFX 241339
FWSTFX

Spot Forecast for Dalton Rx...USFS
National Weather Service Great Falls MT
739 AM MDT Sat May 24 2025

Forecast is based on ignition time of 1000 MDT on May 26.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Transient ridging over the Northern Rockies on Monday morning
will quickly shift to the east through the day as a fast moving
disturbance over the Eastern Pacific lifts northeast and over the
region. Showers and thunderstorms are expected to develop by the
afternoon hours on Monday with the approach of the aforementioned
system, with showers and storms lingering into the evening hours.
While gusty and erratic winds can`t be ruled out beneath or near
the stronger showers or storms the main threat Monday afternoon
and evening with precipitation will be heavy rainfall given slow
storm motions, in addition to occasional lightning.

.MEMORIAL DAY...

Sky/weather.........Sunny (0-10 percent) then becoming partly sunny
                    (50-60 percent). Chance of rain showers in the
                    afternoon.
CWR.................25 percent.
Chance of thunder...21 percent.
Max temperature.....68-73.
Min humidity........30-35 percent.
Wind (20 ft)........
 Slope/valley.......Southeast winds around 5 mph shifting to the
                    southwest at 5 to 10 mph in the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....Southwest around 10 mph.

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy (55-65 percent). Chance of
                    showers and thunderstorms in the evening.
CWR.................35 percent.
Chance of thunder...22 percent.
Min temperature.....43-48.
Max humidity........78-83 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Mixing height.......0 ft AGL.
Transport winds.....West around 10 mph.

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent). Chance of rain
                    showers in the afternoon.
CWR.................5 percent.
Chance of thunder...16 percent.
Max temperature.....62-67.
Min humidity........33-38 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph.
Mixing height.......7000 ft AGL.
Transport winds.....West around 20 mph.

$$

Forecaster...Moldan
Requested by...Nick Boucher
Type of request...PRESCRIBED
.TAG 2514598.0/TFX
.DELDT 05/26/25
.FormatterVersion 2.0.0
.EMAIL jarel.kurtz@usda.gov,nicholas.boucher@usda.gov,donald.iles@usda.gov, tfx.ops@noaa.gov