654
FNUS75 KBOI 040041
FWSBOI

Spot Forecast for FY26 BOSH Pile RX...Bureau of Land Management
National Weather Service Boise ID
541 PM MST Wed Dec 3 2025

Forecast is based on ignition time of 1900 MST on December 03.
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.

...SNOW DEVELOPING THURSDAY AFTERNOON CHANGING TO RAIN FRIDAY...

.DISCUSSION...
Thursday will see light snow develop during the late afternoon as
a warm front pushes in from the Pacific. Expect snow to continue
overnight, possibly mixing with rain. Accumulation of up to an
inch is expected at the burn site through early Friday morning
before changing to rain by late Friday morning. Total liquid
equivalent (snowmelt + rainfall) of around 0.50 inches is
expected by Saturday morning.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy in the evening then becoming
                    partly cloudy overnight.
Min temperature.....15 to 20.
Max humidity........90 to 95 percent.
CWR.................0 percent.
Wind - 20 foot......West around 5 mph.
Mixing height.......100 ft AGL.
Transport winds.....West around 5 mph.
Ventilation Index...5 poor.

.THURSDAY...

Sky/weather.........Mostly cloudy with a 50 percent chance of snow.
Max temperature.....36 to 41.
Min humidity........57 to 62 percent.
CWR.................20 percent.
Wind - 20 foot......West around 7 mph.
Mixing height.......1500 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...225 fair.

.THURSDAY NIGHT...

Sky/weather.........Snow and rain in the evening, then rain and
                    snow likely overnight. Chance of precipitation
                    80 percent. Snow accumulation up to 1 inch.
Min temperature.....24 to 29.
Max humidity........95 to 100 percent.
CWR.................50 percent.
Wind - 20 foot......West around 6 mph.
Mixing height.......300 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...45 poor.

.FRIDAY...

Sky/weather.........Rain and snow likely in the morning, then rain
                    in the afternoon. Chance of precipitation 90
                    percent. No snow accumulation.
Max temperature.....41 to 46.
Min humidity........88 to 93 percent.
CWR.................60 percent.
Wind - 20 foot......West 7 to 13 mph. Gusts up to 14 mph in the
                    morning increasing to 22 mph in the afternoon.
Mixing height.......900 ft AGL.
Transport winds.....West around 30 mph.
Ventilation Index...270 fair.

$$
Forecaster...Smith
Requested by...Dawson Foster
Type of request...PRESCRIBED
.TAG 2527011.0/BOI
.DELDT 12/03/25
.FormatterVersion 2.0.0
.EMAIL dawsonfoster@blm.gov