654
FNUS75 KBOI 012349
FWSBOI

Spot Forecast for FY26 BOSH Pile RX...Bureau of Land Management
National Weather Service Boise ID
449 PM MST Mon Dec 1 2025

Forecast is based on ignition time of 1800 MST on December 01.
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.

...A WEAK SYSTEM TUESDAY OTHERWISE DRY THROUGH THURSDAY...

.DISCUSSION...
A weak cold front will bring light rain and snow showers to the burn
site on Tuesday morning. Little to no accumulations is expected. The
front will reach the burn site around 4 PM MST bring a mix of
rain/snow/graupel showers. Winds will switch to the northwest with
gusts up to 25 MPH especially on the ridgetops. Gusts 15-20 MPH in
the lower valley. Minimal precipitation amounts expected. Dry
conditions Wednesday and Thursday before a system arrives on Friday.
Periods of rain expected on Friday through the weekend.

.TONIGHT...

Sky/weather.........Cloudy. A 30 percent chance of snow showers
                    overnight.
Min temperature.....24 to 29.
Max humidity........73 to 79 percent.
CWR.................10 percent.
Wind - 20 foot......West 5 to 11 mph. Gusts up to 16 mph overnight.
Mixing height.......200 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...20 poor.

.TUESDAY...

Sky/weather.........Mostly cloudy with a 50 percent chance of rain,
                    snow or graupel showers.
Max temperature.....35 to 40.
Min humidity........75 to 80 percent.
CWR.................20 percent.
Wind - 20 foot......West 6 to 12 mph with gusts to around 20 mph.
Mixing height.......2500 ft AGL.
Transport winds.....Northwest around 15 mph.
Ventilation Index...375 fair.

.TUESDAY NIGHT...

Sky/weather.........Mostly cloudy with a 20 percent chance of rain
                    and snow showers in the evening, then partly
                    cloudy overnight.
Min temperature.....19 to 24.
Max humidity........95 to 100 percent.
CWR.................10 percent.
Wind - 20 foot......Northwest 9 to 15 mph with gusts to around 22
                    mph.
Mixing height.......400 ft AGL.
Transport winds.....Northwest around 15 mph.
Ventilation Index...60 poor.

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....32 to 37.
Min humidity........76 to 81 percent.
CWR.................0 percent.
Wind - 20 foot......Northwest 5 to 10 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Northwest around 5 mph.
Ventilation Index...100 poor.

$$
Forecaster...Smith
Requested by...Dawson Foster
Type of request...PRESCRIBED
.TAG 2526819.0/BOI
.DELDT 12/01/25
.FormatterVersion 2.0.0
.EMAIL dawsonfoster@blm.gov