929
FNUS75 KBOI 161019
FWSBOI

Spot Forecast for Quartz...USFS
National Weather Service Boise ID
419 AM MDT Sat Aug 16 2025

Forecast is based on forecast start time of 0500 MDT on August 16.
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.

...SHOWERS/THUNDERSTORMS TONIGHT AS COLD FRONT MOVES IN FROM THE WEST.
SHOWERS AND AFTERNOON THUNDERSTORMS SUNDAY...

.DISCUSSION...
Cold front, along the Cascades early this morning, will spread
showers and isolated thunderstorms onto the fire area this evening,
continuing through the night.  More showers and isolated thunderstorms
Sunday afternoon, possibly stronger thunderstorms than today.  Southwest
wind gusts to 15 mph this afternoon and again Sunday afternoon,

.REST OF TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....50 to 55.
Max humidity........49 to 54 percent.
CWR.................0 percent.
Wind - 20 foot......West around 5 mph.
Mixing height.......200 ft AGL.
Transport winds.....Southeast around 5 mph.
Ventilation Index...10 poor.

.TODAY...

Sky/weather.........Mostly sunny early then increasing clouds.
Max temperature.....67 to 72.
Min humidity........39 to 44 percent.
CWR.................0 percent.
Wind - 20 foot......West 3 to 7 mph. Gusts up to 14 mph in the
                    afternoon.
Mixing height.......7500 ft AGL.
Transport winds.....Southwest around 15 mph.
Ventilation Index...1125 excellent.

.TONIGHT...

Sky/weather.........Mostly cloudy. Scattered showers and isolated
                    thunderstorms in the evening, then numerous
                    showers overnight. Chance of precipitation 60
                    percent.
Min temperature.....48 to 53.
Max humidity........82 to 87 percent.
CWR.................30 percent.
Wind - 20 foot......North 3 to 7 mph. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Mixing height.......200 ft AGL.
Transport winds.....Southeast around 5 mph.
Ventilation Index...10 poor.

.SUNDAY...

Sky/weather.........Mostly cloudy. A slight chance of showers in the
                    morning, then a chance of showers and a slight
                    chance of thunderstorms in the afternoon.
                    Chance of precipitation 30 percent.
Max temperature.....65 to 70.
Min humidity........40 to 46 percent.
CWR.................10 percent.
Wind - 20 foot......East 3 to 6 mph in the morning shifting to the
                    southwest with gusts to around 16 mph in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Mixing height.......6500 ft AGL.
Transport winds.....Southwest around 20 mph.
Ventilation Index...1300 excellent.

$$
Forecaster...Colin
Requested by...Quartz IC
Type of request...WILDFIRE
.TAG 2519694.5/BOI
.DELDT 08/16/25
.FormatterVersion 2.0.0
.EMAIL nathan.robinson@usda.gov