670
FNUS75 KBOI 300123
FWSBOI

Spot Forecast for Big Bear...USFS
National Weather Service Boise ID
723 PM MDT Tue Jul 29 2025

Forecast is based on forecast start time of 2100 MDT on July 29.
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.

...CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS FOR THE NEXT SEVERAL
DAYS...

.DISCUSSION...
A moist southwest flow will keep a chance of afternoon and
evening showers and thunderstorms over the fire through at least
Friday and possibly into the weekend. The greatest threat for
thunderstorms at the fire site will be between 2 PM and 8 PM each
day. Brief heavy rain is also possible from thunderstorms. The
best chance of wetting rain is Thursday. Generally light terrain
driven winds are expected outside of thunderstorms.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy. A 40 percent chance of showers
                    and a slight chance of thunderstorms in the
                    evening.
Min temperature.....56 to 61.
Max humidity........59 to 64 percent.
CWR.................20 percent.
Wind - 20 foot......Southeast 3 to 6 mph.
Mixing height.......300 ft AGL.
Transport winds.....East around 5 mph.
Ventilation Index...15 poor.

.WEDNESDAY...

Sky/weather.........Partly sunny. A 40 percent chance of showers
                    and thunderstorms in the afternoon.
Max temperature.....88 to 94.
Min humidity........22 to 27 percent.
CWR.................20 percent.
Wind - 20 foot......Southeast 3 to 6 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Mixing height.......7500 ft AGL.
Transport winds.....Northeast around 5 mph.
Ventilation Index...375 fair.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy with a chance of showers and a
                    slight chance of thunderstorms in the evening,
                    then partly cloudy overnight. Chance of
                    precipitation 30 percent.
Min temperature.....58 to 63.
Max humidity........59 to 64 percent.
CWR.................20 percent.
Wind - 20 foot......East 4 to 7 mph. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Mixing height.......100 ft AGL.
Transport winds.....East around 5 mph.
Ventilation Index...5 poor.

.THURSDAY...

Sky/weather.........Partly sunny. A 50 percent chance of showers
                    and thunderstorms in the afternoon. Some
                    thunderstorms may produce gusty winds, small
                    hail, and heavy rainfall in the afternoon.
Max temperature.....87 to 93.
Min humidity........26 to 31 percent.
CWR.................40 percent.
Wind - 20 foot......East around 5 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....Northwest around 10 mph.
Ventilation Index...450 fair.

$$
Forecaster...Wojcik
Requested by...Payette Dispatch
Type of request...WILDFIRE
.TAG 2518654.2/BOI
.DELDT 07/29/25
.FormatterVersion 2.0.0
.EMAIL steven.becker2@usda.gov,idpac@firenet.gov,s.becker8@gmail.com,james.norvell@usda.gov