792
FNUS76 KSTO 041919
FWSSTO

Spot Forecast for Root...USFS
National Weather Service Sacramento CA
1219 PM PDT Thu Sep 4 2025

Forecast is based on forecast start time of 0600 PDT on September 05.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...A cooling trend expected today into the weekend with
increasing moisture each day into early next week with Min RHs
reaching into the 50s and 60s across the area by Monday. Terrain,
diurnal winds continue with gusts up to 15 mph and no
thunderstorms forecasted.

.FRIDAY...

Sky/weather.........Sunny.
Max temperature.....81-85.
Min humidity........21-25 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds up to 5 mph shifting to the
                    south 5 to 8 mph in the afternoon.
 Ridgetop...........South around 11 mph.
Mixing height.......5900 ft AGL.
Transport winds.....South around 11 mph.
CWR.................0 percent.
Chance of thunder...0 percent.

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy.
Min temperature.....58-62.
Max humidity........51-55 percent.
Wind (20 ft)........
 Slope/valley.......South winds 4 to 7 mph in the evening becoming
                    light northeast winds.
 Ridgetop...........South around 5 mph.
Mixing height.......1500 ft AGL.
Transport winds.....South around 5 mph.
CWR.................1 percent.
Chance of thunder...3 percent.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....78-82.
Min humidity........28-32 percent.
Wind (20 ft)........
 Slope/valley.......Light northeast winds becoming south 5 to 9 mph
                    in the afternoon.
 Ridgetop...........South around 10 mph.
Mixing height.......6700 ft AGL.
Transport winds.....South around 10 mph.
CWR.................2 percent.
Chance of thunder...5 percent.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Partly cloudy. Lows in the upper 50s. Highs in the mid 70s. Light
winds.
.MONDAY...
Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 50s. Highs in the upper 60s.
Light winds.
.TUESDAY...
Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the upper 60s. Light
winds.

$$
Forecaster...DA
Requested by...Hanne Meyers
Type of request...WILDFIRE
.TAG 2521076.3/STO
.DELDT 09/04/25
.FormatterVersion 2.0.0
.EMAIL hanne.meyers@usda.gov