718
FNUS76 KSTO 310347
FWSSTO

Spot Forecast for Cow Creek...USDA
National Weather Service Sacramento CA
847 PM PDT Fri Oct 30 2026

Forecast is based on ignition time of 0900 PDT on October 31.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A weather system will bring rain, chances for a light dusting of
snow, and around a 15-20% chance of isolated thunderstorms this
weekend. Current forecast for additional rainfall at the site are
around 1.20" to 1.40". Any snow amounts will be less than a tenth
of an inch, with the best chances being early Sunday morning when
snow levels will be between 5800 to 6000 feet. Light to breezy
south to west winds are expected on Saturday with gusts to 15 mph,
before increasing out of the east Sunday night with gusts to 20 mph.

Dry conditions (no precipitation) resume early afternoon Sunday
and continue into early next week. Chances for unsettled weather
reemerge mid to late next week.


.SATURDAY...

Sky/weather.........Cloudy. Patchy fog late in the morning. Rain
                    showers likely late in the morning. Slight
                    chance of thunderstorms through the day. Rain
                    showers in the afternoon.
Max temperature.....42-46.
Min humidity........95-99 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest up to 5 mph in
                    the afternoon. Gusty and erratic winds expected
                    near thunderstorms.
 Ridgetop...........South around 15 mph.
Mixing height.......2100 ft AGL.
Transport winds.....South around 15 mph.
CWR.................91 percent.
Chance of thunder...15 percent.

.SATURDAY NIGHT...

Sky/weather.........Cloudy. Areas of fog through the night. Rain
                    showers and slight chance of thunderstorms
                    through the night. Chance of snow overnight.
Min temperature.....29-33.
Max humidity........98-100 percent.
Wind (20 ft)........
 Slope/valley.......South winds up to 5 mph with gusts to 15 mph in the evening becoming
                    light. Gusty and erratic winds expected near
                    thunderstorms.
 Ridgetop...........Southwest around 9 mph.
Mixing height.......700 ft AGL.
Transport winds.....Southwest around 9 mph.
CWR.................97 percent.
Chance of thunder...15 percent.

.SUNDAY...

Sky/weather.........Partly sunny. Areas of fog in the morning.
                    Chance of snow and rain in the morning, then
                    slight chance of rain in the afternoon.
Max temperature.....44-48.
Min humidity........68-72 percent.
Wind (20 ft)........
 Slope/valley.......Light winds generally less than 10 mph, increasing overnight out of the east with gusts
15 to 20 mph.
 Ridgetop...........Southwest around 6 mph.
Mixing height.......4200 ft AGL.
Transport winds.....Southwest around 6 mph.
CWR.................25 percent.
Chance of thunder...5 percent.

$$
Forecaster...KF
Requested by...Charles E Daniel
Type of request...PRESCRIBED
.TAG 2624961.0/STO
.DELDT 10/31/26
.FormatterVersion 2.0.0
.EMAIL charles.daniel@usda.gov