262
FNUS75 KBOI 151035
FWSBOI

Spot Forecast for Big Bear...USFS
National Weather Service Boise ID
435 AM MDT Tue Jul 15 2025

Forecast is based on forecast start time of 0500 MDT on July 15.
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.

...NOT AS HOT AND BREEZY TODAY...
...SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON...

.DISCUSSION...
An area of low pressure and cold front will bring a 20% chance of
showers and thunderstorms this afternoon. Winds will be breezy
once again today, with northwest winds aligning with topography
along the Salmon River. Brief stronger gusts are possible from
showers and thunderstorms. Winds will take on a more northerly
component late this afternoon and evening, especially along
ridgelines. Temperatures today will be about 10 degrees cooler
than Monday with 10% higher minimum humidity. A warming and drying
trend will begin Wednesday and continue late this week. Winds will
be lighter on Wednesday, then become breezy from the west Thursday
and Friday.

.TODAY...

Sky/weather.........Mostly sunny, becoming partly cloudy with a
                    20 percent chance of showers and thunderstorms
                    in the afternoon.
Max temperature.....78 to 87.
Min humidity........29 to 34 percent.
CWR.................5 percent.
Wind - 20 foot......North to northwest 6 to 12 mph. Gusts up to 18 mph
                    in the afternoon, except up to 22 mph on ridgelines.
                    Gusty and erratic winds possible near thunderstorms
                    in the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....Northwest around 15 mph.
Ventilation Index...1050 excellent.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....53 to 58.
Max humidity........67 to 74 percent.
CWR.................0 percent.
Wind - 20 foot......North 6 to 12 mph with gusts to around 20 mph
                    in the evening, shifting to east to southeast
                    3 to 5 mph after midnight, except 5 to 9 mph with
                    gusts to around 12 mph on ridgelines.
Mixing height.......1500 ft AGL.
Transport winds.....East around 5 mph.
Ventilation Index...75 poor.

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....82 to 91.
Min humidity........20 to 25 percent.
CWR.................0 percent.
Wind - 20 foot......East to southeast 2 to 5 mph in the morning,
                    shifting to northwest 3 to 7 mph in the afternoon.
                    Gusts up to 12 mph on ridgelines.
Mixing height.......8000 ft AGL.
Transport winds.....Northwest around 10 mph.
Ventilation Index...800 excellent.

$$
Forecaster...Tangen
Requested by...Nathan Robinson (Incident Commander)
Type of request...WILDFIRE
.TAG 2517897.3/BOI
.DELDT 07/15/25
.FormatterVersion 2.0.0
.EMAIL nathan.robinson@usda.gov