756
FNUS76 KSTO 102038
FWSSTO

Spot Forecast for Sly Park Rx...CALFIRE / AEU
National Weather Service Sacramento CA
138 PM PDT Fri Oct 10 2025

Forecast is based on ignition time of 0800 PDT on October 12.
If conditions become unrepresentative...contact the National Weather
Service.


.DISCUSSION...
Dry weather on Sunday, with breezy west winds gusting to 15 mph
during the afternoon hours before shifting out of the east
overnight. A cold and wet system will bring widespread rain late
Monday morning and continue through Wednesday morning as a cold
and wet system pushes through the region. This system will
additionally bring south winds gusting to 20 mph and a 10% chance
of late day thunderstorms. Heaviest precipitation is expected
Monday night into Tuesday morning with a 60 to 70% chance of 0.50"
or more of rain, however there is high uncertainty regarding rain
totals.


.COLUMBUS DAY...

Sky/weather.........Mostly cloudy. Slight chance of rain showers in
                    the morning, then chance of rain showers late
                    in the morning.
Max temperature.....52-56.
Min humidity........56-60 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southeast up to 5 mph
                    early in the morning, then shifting to the
                    south up to 7 mph with gusts to around 20 mph
                    late in the morning.
 Ridgetop...........South 8 to 17 mph increasing to 15 to 18 mph
                    late in the afternoon.
Mixing height.......5100 ft AGL.
Transport winds.....South 9 to 18 mph decreasing to 8 to 17 mph
                    early in the morning, then increasing to 15 to
                    18 mph late in the afternoon.
CWR.................5 percent increasing to 36 percent.
Chance of thunder...2 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  MC  MC  MC  MC  MC
CWR.............10  10  10  10  10  20  20  20  20  20  20  40
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............45  44  44  46  48  50  51  52  53  53  52  51
RH..............63  65  67  67  65  63  61  59  58  59  61  64
SL/VL wind dir..SE  SE  SE  SE  SE  S   S   S   S   S   S   S
SL/VL wind spd..2   2   5   5   5   6   6   6   7   7   7   5
SL/VL wind gust.7   7   9   9   9   17  17  17  20  20  20  15
Ridge wind dir..M   M   M   M   M   M   M   M   M   M   M   M
Ridge wind spd..M   M   M   M   M   M   M   M   M   M   M   M
Mix hgt (kft)...0.2 0.2 1.3 1.3 1.3 3.5 3.5 3.5 4.8 4.8 4.8 5.1
Transp wind dir.SE  SE  S   S   S   S   S   S   S   S   S   S
Transp wind spd.9   9   8   8   8   17  17  17  18  18  18  15

$$
Forecaster...KF
Requested by...Eric Bither
Type of request...PRESCRIBED
.TAG 2523257.0/STO
.DELDT 10/10/25
.FormatterVersion 2.0.0
.EMAIL Eric.Bither@fire.ca.gov