429
FNUS75 KBOI 111721
FWSBOI

Spot Forecast for Quartz Fire...Payette NF
National Weather Service Boise ID
1121 AM MDT Mon Aug 11 2025

Forecast is based on forecast start time of 1159 MDT on August 11.
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.

...WARM AND DRY WITH BREEZY AFTERNOON WINDS...

.DISCUSSION...
High pressure aloft will bring warm temperatures to the fire site
through Wednesday. Today will be clear, while a slight increase in
moisture on Tuesday and Wednesday will likely result in afternoon
cumulus buildups. Any chance of showers or thunderstorms remains
less than 10%. Breezy afternoon winds will develop as the overnight
inversion breaks. Slightly cooler temperatures will end the week
with an increase relative humidity values heading into the weekend.

.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....75 to 80.
Min humidity........28 to 33 percent.
CWR.................0 percent.
Wind - 20 foot......Less than 3 mph becoming west 3 to 6 mph
                    in the afternoon.
Mixing height.......7500 ft AGL.
Transport winds.....Northwest around 5 mph.
Ventilation Index...375 fair.

.TONIGHT...

Sky/weather.........Mostly cleaer.
Min temperature.....54 to 59.
Max humidity........50 to 55 percent.
CWR.................0 percent.
Wind - 20 foot......North 4 to 7 mph.
Mixing height.......100 ft AGL.
Transport winds.....North around 5 mph.
Ventilation Index...5 poor.

.TUESDAY...

Sky/weather.........Sunny in the morning becoming partly cloudy in
                    the afternoon.
Max temperature.....76 to 81.
Min humidity........25 to 30 percent.
CWR.................0 percent.
Wind - 20 foot......Northeast around 5 mph in the morning shifting
                    to the west around 8 mph with gusts to
                    around 14 mph in the afternoon.
Mixing height.......10000 ft AGL.
Transport winds.....West around 15 mph.
Ventilation Index...1500 excellent.

$$
Forecaster...Groenert
Requested by...Kai Hil
Type of request...WILDFIRE
.TAG 2519673.1/BOI
.DELDT 08/11/25
.FormatterVersion 2.0.0
.EMAIL idpac@firenet.gov