888
FNUS76 KSTO 110935
FWSSTO

Spot Forecast for Groveland FFS...Cal Fire
National Weather Service Sacramento CA
235 AM PDT Sat Oct 11 2025

Forecast is based on ignition time of 0800 PDT on October 11.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Mostly clear skies today at the burn location, with west winds
for the afternoon. Humidity values will range higher than normal
today, as a weak weather system vacates the area. Sunday, drying
conditions with humidity values in the lower 30s. The next weather
system moves into the area Monday afternoon, bringing precipitation
chances to the burn site Monday through Thursday morning. Forecast
total rain at the location ranges from around 2.50-3.25" inches, with
large variability in totals due to forecast uncertainty.

.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....59-63.
Min humidity........40-44 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds up to 6 mph shifting to the
                    west 5 to 7 mph in the afternoon.
 Ridgetop...........Northwest 7 to 12 mph.
Mixing height.......4100 ft AGL.
Transport winds.....Northwest 7 to 12 mph.
CWR.................1 percent.
Chance of thunder...0 percent.

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR MCR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............48  50  54  56  58  59  59  59  61  59
RH..............97  90  73  63  53  47  43  41  40  40
SL/VL wind dir..NW  NW  NW  W   W   W   W   W   NW  NW
SL/VL wind spd..5   6   6   6   7   7   7   7   7   7
SL/VL wind gust.9   10  12  13  15  17  17  18  18  17
Ridge wind dir..NW  NW  NW  NW  NW  NW  W   W   W   NW
Ridge wind spd..8   8   8   7   7   7   10  10  10  12
Mix hgt (kft)...0.8 0.8 0.8 3.4 3.4 3.4 4.1 4.1 4.1 1.6
Transp wind dir.NW  NW  NW  NW  NW  NW  W   W   W   NW
Transp wind spd.8   8   8   7   7   7   10  10  10  12

$$
Forecaster...JW
Requested by...FC Curtis Crawford
Type of request...PRESCRIBED
.TAG 2523427.0/STO
.DELDT 10/11/25
.FormatterVersion 2.0.0
.EMAIL curtis.crawford@fire.ca.gov