742
FNUS76 KSTO 010003
FWSSTO

Spot Forecast for Trailhead Rx Burn...California State Parks
National Weather Service Sacramento CA
503 PM PDT Wed Sep 30 2026

Forecast is based on ignition time of 0800 PDT on October 01.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Mostly sunny, dry, and unseasonably warm weather expected at the
burn site Thursday into the weekend. Expect patchy smoke a times,
originating from the Dome Fire. Highs in the 80s with daytime
humidities in the teens to low 20s Thursday, then further warming
and drying is expected Friday. Lows will be in the low 60s with
poor overnight humidity recoveries in the 30s. Winds will
primarily be light and terrain driven over the next couple of
days. There are no precipitation or thunderstorm chances in the
forecast period for the area.

.THURSDAY...

Sky/weather.........Sunny. Patchy smoke early in the morning. Haze
                    early in the afternoon.
Max temperature.....81-85.
Min humidity........18-22 percent.
Wind (20 ft)........
 Slope/valley.......East winds 5 to 7 mph early in the morning
                    becoming light, then becoming southwest up to 6
                    mph in the afternoon becoming light.
 Ridgetop...........East 7 mph in the morning, southwest to 8 mph
                    in the afternoon.
Mixing height.......4100 ft AGL.
Transport winds.....East around 7 mph shifting to the west around 6
                    mph late in the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR 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............62  67  74  78  81  81  82  81  80  78
RH..............32  31  24  22  20  20  20  21  21  23
SL/VL wind dir..E   E   S   SW  SW  SW  SW  SW  SW  W
SL/VL wind spd..7   6   3   3   5   5   6   5   5   2
SL/VL wind gust.15  9   6   7   9   12  13  12  10  7
Ridge wind dir..E   E   E   S   S   S   SW  SW  SW  W
Ridge wind spd..7   7   7   8   8   8   8   8   8   6
Mix hgt (kft)...1.3 1.3 1.3 3.8 3.8 3.8 4.1 4.1 4.1 1.8
Transp wind dir.E   E   E   S   S   S   SW  SW  SW  W
Transp wind spd.7   7   7   8   8   8   8   8   8   6

.THURSDAY NIGHT...

Sky/weather.........Mostly clear. Patchy smoke overnight. Areas of
                    smoke overnight, then patchy smoke after 3 am.
Min temperature.....62-66.
Max humidity........33-37 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming northeast up to 7 mph
                    early in the evening.
 Ridgetop...........West to 6 mph early evening, then east 8 mph.
Mixing height.......300 ft AGL.
Transport winds.....West around 6 mph shifting to the east 7 to 9
                    mph early in the evening.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............74  69  65  64  64  65  65  65  65  64  64  64
RH..............29  34  35  35  35  35  34  33  33  33  32  32
SL/VL wind dir..W   W   NE  NE  NE  NE  NE  NE  NE  NE  NE  E
SL/VL wind spd..2   2   7   7   7   5   5   5   5   5   5   6
SL/VL wind gust.7   7   17  17  17  9   9   9   9   9   9   10
Ridge wind dir..W   W   E   E   E   E   E   E   E   E   E   E
Ridge wind spd..6   6   7   7   7   7   7   7   9   9   9   9
Mix hgt (kft)...1.8 1.8 0.3 0.3 0.3 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W   W   E   E   E   E   E   E   E   E   E   E
Transp wind spd.6   6   7   7   7   7   7   7   9   9   9   9

.FRIDAY...

Sky/weather.........Mostly sunny.
Max temperature.....82-86.
Min humidity........15-19 percent.
Wind (20 ft)........
 Slope/valley.......East winds 5 to 8 mph in the morning becoming
                    light, then becoming southwest up to 5 mph late
                    in the afternoon becoming light.
 Ridgetop...........East 9 mph in the morning, southwest to 5 mph
                    afternoon.
Mixing height.......5400 ft AGL.
Transport winds.....East around 9 mph shifting to the south late
                    in the morning, then shifting to the west around
                    6 mph late in the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR PC  PC  PC  PC  PC  PC  PC  PC  PC  PC
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............64  64  64  68  73  78  80  82  82  82  81  78
RH..............30  31  32  28  23  18  16  16  17  18  20  22
SL/VL wind dir..E   E   E   E   E   S   S   S   SW  SW  SW  W
SL/VL wind spd..6   6   8   8   8   3   3   3   5   5   5   2
SL/VL wind gust.10  10  15  15  15  6   6   6   12  12  12  6
Ridge wind dir..E   E   E   E   E   S   S   S   SW  SW  SW  W
Ridge wind spd..9   9   9   9   9   9   9   9   9   9   9   6
Mix hgt (kft)...0.5 0.5 0.4 0.4 0.4 4.8 4.8 4.8 5.4 5.4 5.4 3.1
Transp wind dir.E   E   E   E   E   S   S   S   SW  SW  SW  W
Transp wind spd.9   9   9   9   9   9   9   9   9   9   9   6

$$
Forecaster...EK
Requested by...William Geer
Type of request...PRESCRIBED
.TAG 2622888.0/STO
.DELDT 09/30/26
.FormatterVersion 2.0.0
.EMAIL richard.rappaport@parks.ca.gov,ben.jacobs@parks.ca.gov,william.geer@parks.ca.gov