566
FNUS75 KBOI 131000
FWSBOI

Spot Forecast for Big Bear...USFS
National Weather Service Boise ID
400 AM MDT Sun Jul 13 2025

Forecast is based on forecast start time of 0500 MDT on July 13.
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.

...HOT AND DRY TODAY AND MONDAY...
...DRY COLD FRONTAL PASSAGE AND GUSTY WINDS MONDAY AFTERNOON...

.DISCUSSION...
High pressure will keep hot and dry conditions over the burn area
through Monday. Scattered cumulus buildups today and Monday over
higher terrain could bring a brief gust of wind, but no precipitation
or lightning activity is expected. Winds will increase Monday
afternoon with passage of a dry cold front. Dry conditions persist
through the remainder of the week with temperatures gradually warming
up after Tuesday.

.TODAY...

Sky/weather.........Sunny, then partly cloudy in the afternoon.
Max temperature.....91 to 96.
Min humidity........19 to 24 percent.
CWR.................0 percent.
Wind - 20 foot......East around 3 mph in the morning shifting to
                    the northwest 4 to 8 mph with gusts to 13 mph
                    in the afternoon. Gusts to 18 mph along
                    upper-slopes and ridgelines.
Mixing height.......7500 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...750 excellent.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....62 to 67.
Max humidity........51 to 56 percent.
CWR.................0 percent.
Wind - 20 foot......Northwest 3 to 6 mph.
Mixing height.......1000 ft AGL.
Transport winds.....West around 5 mph.
Ventilation Index...50 poor.

.MONDAY...

Sky/weather.........Sunny, then partly cloudy in the afternoon.
Max temperature.....90 to 95.
Min humidity........18 to 23 percent.
CWR.................0 percent.
Wind - 20 foot......Northwest 3 to 6 mph in the morning, becoming
                    6 to 11 mph with gusts up to 18 mph in the
                    afternoon. Gusts to 25 mph along upper-slopes
                    and ridgelines.
Mixing height.......10500 ft AGL.
Transport winds.....West around 20 mph.
Ventilation Index...2100 excellent.

$$
Forecaster...Groenert
Requested by...Nathan Robinson (Incident Commander)
Type of request...WILDFIRE
.TAG 2517897.1/BOI
.DELDT 07/13/25
.FormatterVersion 2.0.0
.EMAIL nathan.robinson@usda.gov