451
FNUS75 KBOI 020930
FWSBOI

Spot Forecast for Johnson Fork Piles...USFS
National Weather Service Boise ID
230 AM MST Tue Dec 2 2025

Forecast is based on ignition time of 1000 MST on December 02.
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 CHANCE OF RAIN AND SNOW SHOWERS WITH GUSTY WINDS TODAY...

.DISCUSSION...
A passing low pressure system will bring a chance of rain and snow
showers to the burn site today. No accumulation is expected. Winds
will become gusty out of the northwest this afternoon. Wednesday and
Thursday will see dry and stable weather under a high pressure aloft.
A chance for rain and snow will return Thursday night and carry
through the weekend as a wetter pattern sets up over the region.

.TODAY...

Sky/weather.........Mostly cloudy with a 30 percent chance of rain
                    and snow showers.
Max temperature.....36 to 41.
Min humidity........76 to 81 percent.
CWR.................10 percent.
Wind - 20 foot......Northwest 3 to 5 mph in the morning, becoming
                    northwest 6 to 10 mph with gusts up to 22 mph
                    in the afternoon.
Mixing height.......2000 ft AGL.
Transport winds.....Northwest around 15 mph.
Ventilation Index...300 fair.

.TONIGHT...

Sky/weather.........Mostly cloudy in the evening, then clearing.
                    Patchy fog.
Min temperature.....20 to 25.
Max humidity........94 to 99 percent.
CWR.................0 percent.
Wind - 20 foot......North 3 to 6 mph with gusts to around 18 mph in
                    the evening becoming less than 3 mph overnight.
Mixing height.......300 ft AGL.
Transport winds.....North around 5 mph.
Ventilation Index...15 poor.

.WEDNESDAY...

Sky/weather.........Sunny. Patchy fog in the morning.
Max temperature.....35 to 40.
Min humidity........65 to 70 percent.
CWR.................0 percent.
Wind - 20 foot......North 3 to 5 mph.
Mixing height.......2500 ft AGL.
Transport winds.....Northwest around 5 mph.
Ventilation Index...125 poor.

$$
Forecaster...Groenert
Requested by...Nick Becharas
Type of request...PRESCRIBED
.TAG 2526769.0/BOI
.DELDT 12/02/25
.FormatterVersion 2.0.0
.EMAIL nicholas.becharas@usda.gov