521
FNUS75 KBOI 181717
FWSBOI

Spot Forecast for Rush...USFS
National Weather Service Boise ID
1117 AM MDT Fri Jul 18 2025

Forecast is based on forecast start time of 1100 MDT on July 18.
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.

...GUSTY SOUTHWEST WINDS THROUGH SATURDAY...

.DISCUSSION...
Southwest winds will be the main issue through Saturday ahead of
a dry surface cold front, followed by an upper trough from western
Canada.  The surface front will reach the fire area late Saturday,
then stall near the fire area Saturday evening, and dissipate
overnight.  The frontal zone will be marked by increased clouds
but no rain is expected.

.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....85 to 90.
Min humidity........15 to 20 percent.
CWR.................0 percent.
Wind - 20 foot......Southwest 9 to 15 mph.
Mixing height.......11500 ft AGL.
Transport winds.....West around 20 mph.
Ventilation Index...2300 excellent.

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....54 to 59.
Max humidity........40 to 45 percent.
CWR.................0 percent.
Wind - 20 foot......West 7 to 13 mph. Gusts up to 18 mph in the
                    evening.
Mixing height.......400 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...40 poor.

.SATURDAY...

Sky/weather.........Mostly sunny.
Max temperature.....79 to 84.
Min humidity........16 to 21 percent.
CWR.................0 percent.
Wind - 20 foot......Southwest 11 to 17 mph. Gusts up to 14 mph in
                    the morning increasing to 22 mph in the
                    afternoon.
Mixing height.......10000 ft AGL.
Transport winds.....West around 25 mph.
Ventilation Index...2500 excellent.

$$
Forecaster...Colin
Requested by...Payette Dispatch
Type of request...WILDFIRE
.TAG 2518215.0/BOI
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL idpac@firenet.gov