818
FNUS75 KBOI 312132
FWSBOI

Spot Forecast for Mountain Home AFB Slash Piles...USFWS
National Weather Service Boise ID
332 PM MDT Thu Jul 31 2025

Forecast is based on ignition time of 1500 MDT on July 31.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (208)334-9060, if you have questions
or concerns with this forecast.

...RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.DISCUSSION...
Upper trough moving in from the south will develop scattered
strong thunderstorms late today and this evening. Storms will
be preceded by outflow wind gusts as strong as 60 mph. Southwest
flow will continue to bring a series of shortwaves and moisture
to the area for the next several days. There is a chance of
showers and thunderstorms during the afternoons and evenings.
Main threats will be gusty outflow winds, and brief heavy rain in
the cores of the storms. Distant thunderstorms will also be
capable of producing gusty erratic outflow winds that could impact
the site.

.REST OF TODAY...

Sky/weather.........Mostly sunny with a 20 percent chance of
                    showers and thunderstorms.
Max temperature.....91 to 96.
Min humidity........14 to 19 percent.
CWR.................10 percent.
Wind - 20 foot......West 5 to 9 mph with gusts to around 15 mph.
                    Gusty and erratic winds expected near
                    thunderstorms.
Mixing height.......11000 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...1100 excellent.

.TONIGHT...

Sky/weather.........Mostly cloudy with scattered showers and
                    thunderstorms in the evening, then partly
                    cloudy overnight. Some thunderstorms may
                    produce damaging winds in the evening. Chance
                    of precipitation 30 percent.
Min temperature.....58 to 63.
Max humidity........70 to 75 percent.
CWR.................10 percent.
Wind - 20 foot......West 5 to 9 mph. Gusts up to 18 mph in the
                    evening. Gusty and erratic winds expected near
                    thunderstorms in the evening.
Mixing height.......200 ft AGL.
Transport winds.....Northwest around 10 mph.
Ventilation Index...20 poor.

.FRIDAY...

Sky/weather.........Mostly sunny.
Max temperature.....89 to 94.
Min humidity........17 to 22 percent.
CWR.................0 percent.
Wind - 20 foot......Northwest 6 to 9 mph. Gusts up to 18 mph in the
                    afternoon.
Mixing height.......9500 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...1425 excellent.

$$
Forecaster...Wojcik
Requested by...Bryson Gundlach
Type of request...PRESCRIBED
.TAG 2518914.2/BOI
.DELDT 07/31/25
.FormatterVersion 2.0.0
.EMAIL bryson_gundlach@fws.gov