908
FNUS75 KBOI 030943
FWSBOI

Spot Forecast for Johnson Fork Piles...USFS...UPDATED
National Weather Service Boise ID
243 AM MST Wed Dec 3 2025

Forecast is based on ignition time of 0700 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.

...DRY AND STABLE CONDITIONS TODAY...
...SNOW DEVELOPING THURSDAY AFTERNOON CHANGING TO RAIN FRIDAY...

.DISCUSSION...
High pressure over the region will bring dry and stable conditions
for today. Winds will be light and terrain driven. 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 Friday morning before changing
to rain by Friday afternoon. Total liquid equivalent (snowmelt
+ rainfall) of around 0.50 inches is expected by Saturday morning.

.TODAY...

Sky/weather.........Sunny.
Max temperature.....35 to 40.
Min humidity........61 to 66 percent.
CWR.................0 percent.
Wind - 20 foot......Less than 3 mph.
Mixing height.......2500 ft AGL.
Transport winds.....Southwest around 5 mph.
Ventilation Index...125 poor.

.TONIGHT...

Sky/weather.........Partly cloudy.
Min temperature.....21 to 26.
Max humidity........89 to 94 percent.
CWR.................0 percent.
Wind - 20 foot......Less than 3 mph.
Mixing height.......300 ft AGL.
Transport winds.....Northwest around 3 mph.
Ventilation Index...9 poor.

.THURSDAY...

Sky/weather.........A 40 percent chance of snow. Snow accumulation
                    less than a half an inch.
Max temperature.....33 to 38.
Min humidity........65 to 70 percent.
CWR.................10 percent.
Wind - 20 foot......Less than 3 mph.
Mixing height.......2000 ft AGL.
Transport winds.....West around 5 mph.
Ventilation Index...100 poor.

$$
Forecaster...Groenert
Requested by...Nick Becharas
Type of request...PRESCRIBED
.TAG 2526769.1/BOI
.DELDT 12/03/25
.FormatterVersion 2.0.0
.EMAIL nicholas.becharas@usda.gov