904
FNUS76 KSTO 110208
FWSSTO

Spot Forecast for CAL FIRE Station 23...CAL FIRE
National Weather Service Sacramento CA
708 PM PDT Fri Oct 10 2025

Forecast is based on ignition time of 0900 PDT on October 12.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Dry weather is expected Sunday with cool temperatures and northeast
flow in the morning shifting to the west in the afternoon.
A relatively cold weather system will then approach the region
on Monday. Southerly winds will increase ahead of the system with
gusts of 15 to 20 mph on Monday. Precipitation chances will begin
Monday morning and continue through at least Wednesday.
There is a 20% chance of thunderstorms late Monday into Tuesday,
including the overnight period. There is a 70% chance of 1 inch
of rain from Monday through Wednesday.

.SUNDAY...

Sky/weather.........Sunny.
Max temperature.....60-64.
Min humidity........40-45 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 4 to 7 mph in the morning
                    with gusts to 12 mph becoming west in the afternoon.
 Ridgetop...........Northeast 6 to 12 mph in the morning
shifting to the west 5 to 8 mph in the afternoon.
Mixing height.......Increasing to 3600 ft AGL.
Transport winds.....Northeast around 10 mph decreasing to 6 to 10
                    mph in the late morning and early afternoon,
                    then shifting to the west 5 to 8 mph late in
                    the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR MCR MCR MCR PC
CWR.............0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0
Temp............48  52  56  58  60  60  61  61  60
RH..............58  50  44  42  42  43  42  42  43
SL/VL wind dir..NE  NE  NW  NW  NW  W   W   W   W
SL/VL wind spd..5   5   2   2   2   3   3   3   2
SL/VL wind gust.12  12  8   8   8   12  12  12  10
Ridge wind dir..NE  NE  NW  NW  NW  W   W   W   W
Ridge wind spd..12  12  8   8   8   12  12  12  10
Mix hgt (kft)...0.2 0.2 2.6 2.6 2.6 3.6 3.6 3.6 3.0
Transp wind dir.NE  NE  N   N   N   W   W   W   W
Transp wind spd.10  10  6   6   6   5   5   5   8

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers after 0500.
Min temperature.....43-47.
Max humidity........77-81 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........West around 8 mph shifting to the east 6 to 8
                    mph early in the evening, then shifting to the
                    south around 9 mph overnight.
Mixing height.......Decreasing to 200 ft AGL.
Transport winds.....West around 8 mph shifting to the east 6 to 8
                    mph early in the evening, then shifting to the
                    south around 9 mph overnight.
CWR.................10 percent after 0500.
Chance of thunder...0 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC  PC  MC  MC  MC  MC  MC  MC  MC  MC  MC  MC
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............57  54  51  50  50  50  50  50  50  50  49  48
RH..............48  53  58  60  60  59  57  56  57  63  70  76
SL/VL wind dir..W   W   NE  NE  NE  NE  NE  NE  E   E   E   SE
SL/VL wind spd..2   2   3   3   3   2   2   2   2   2   2   2
SL/VL wind gust.10  10  7   7   7   6   6   6   6   6   6   6
Ridge wind dir..W   W   NE  NE  NE  E   E   E   S   SE  SE  SE
Ridge wind spd..8   8   7   7   7   6   6   6   6   6   9   9
Mix hgt (kft)...3.0 3.0 0.2 0.2 0.2 0.3 0.3 0.3 0.5 0.5 0.5 0.7
Transp wind dir.W   W   E   E   E   E   E   E   S   S   S   S
Transp wind spd.8   8   6   6   6   8   8   8   9   9   9   9

.COLUMBUS DAY...

Sky/weather.........Mostly cloudy with rain showers likely.
Max temperature.....49-53.
Min humidity........74-78 percent.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 8 mph with gusts of 15 to 20 mph.
 Ridgetop...........South 9 to 18 mph.
Mixing height.......Increasing to 4400 ft AGL.
Transport winds.....South 9 to 18 mph.
CWR.................10 percent increasing to 60 percent in the afternoon.
Chance of thunder...20 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  40  40  40  40  40  40  60
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   10
Temp............47  46  46  46  46  47  48  48  49  49  48  48
RH..............77  77  76  77  78  79  79  79  79  79  79  80
SL/VL wind dir..SE  SE  SE  SE  SE  S   S   S   S   S   S   SE
SL/VL wind spd..2   2   3   3   3   7   7   7   6   6   6   5
SL/VL wind gust.6   6   9   9   9   17  17  17  17  17  17  16
Ridge wind dir..SE  SE  SE  SE  SE  S   S   S   S   S   S   SE
Ridge wind spd..6   6   9   9   9   17  17  17  17  17  17  16
Mix hgt (kft)...0.7 0.7 1.6 1.6 1.6 3.3 3.3 3.3 4.4 4.4 4.4 3.2
Transp wind dir.S   S   SE  SE  SE  S   S   S   S   S   S   SE
Transp wind spd.9   9   10  10  10  17  17  17  18  18  18  16

$$
Forecaster...KH
Requested by...Matthew Brady
Type of request...PRESCRIBED
.TAG 2523239.0/STO
.DELDT 10/11/25
.FormatterVersion 2.0.0
.EMAIL Mike.Batham@fire.ca.gov,Matthew.Brady@fire.ca.gov,Jason.Finney@fire.ca.gov,Nathan.Daniel@fire.ca.gov