706
FNUS76 KSTO 190144
FWSSTO

Spot Forecast for Trapper SFEP...Us Forest Service
National Weather Service Sacramento CA
544 PM PST Tue Nov 18 2025

Forecast is based on ignition time of 0600 PST on November 19.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Mostly cloudy conditions at the burn site tomorrow morning, with
light surface winds. A weather system is forecast to move into the
area tomorrow night and bring renewed chances for light rain
showers to the region through Friday morning. This system is not
forecast to be as strong as our previous few storms, with light
rain totals of around 0.50" inches and less at the burn site.
Winds will not be an impact with this event as well, mostly
sustained winds from the south below 10 mph. Conditions will
begin to improve with clearing skies by Friday afternoon and
through this weekend.

.WEDNESDAY...

Sky/weather.........Mostly cloudy.
Max temperature.....51-55.
Min humidity........85-89 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........East 1 to 5 mph shifting to the south 3 to 5
                    mph in the late morning and afternoon.
Mixing height.......3100 ft AGL.
Transport winds.....Southeast around 5 mph shifting to the east
                    around 1 mph early in the morning, then
                    shifting to the south 3 to 5 mph in the late
                    morning and afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PST)      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.............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............39  41  42  45  47  49  51  52  52  52  51  50
RH..............100 99  100 100 100 94  87  87  87  91  93  100
SL/VL wind dir..N   N   N   N   N   W   SW  SW  SW  SW  S   S
SL/VL wind spd..0   0   0   0   0   1   2   2   2   2   2   2
SL/VL wind gust.1   1   1   1   3   5   6   7   7   6   5   5
Ridge wind dir..SE  E   E   E   S   S   S   SW  SW  SW  S   S
Ridge wind spd..5   1   1   1   3   3   3   5   5   5   5   5
Mix hgt (kft)...1.4 1.7 1.7 1.7 2.8 2.8 2.8 3.1 3.1 3.1 1.8 1.8
Transp wind dir.SE  E   E   E   S   S   S   SW  SW  SW  S   S
Transp wind spd.5   1   1   1   3   3   3   5   5   5   5   5

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy. Rain showers likely in the late
                    evening and overnight. Rain showers after 3 am.
Min temperature.....38-42.
Max humidity........98-100 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........South 3 to 7 mph.
Mixing height.......1100 ft AGL.
Transport winds.....South 3 to 7 mph.
CWR.................2 percent increasing to 72 percent.
Chance of thunder...4 percent.

TIME (PST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  CDY CDY CDY CDY CDY
CWR.............0   0   0   0   40  40  40  40  40  40  70  70
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............49  47  47  47  46  46  46  46  45  45  44  43
RH..............100 100 100 100 99  99  100 100 100 99  99  99
SL/VL wind dir..S   SE  SE  SE  N   N   N   N   N   N   N   N
SL/VL wind spd..2   1   1   1   0   0   0   0   0   0   0   0
SL/VL wind gust.5   3   3   3   2   2   2   2   2   2   3   3
Ridge wind dir..S   S   S   S   SE  SE  SE  S   S   S   S   S
Ridge wind spd..5   3   3   3   7   7   7   7   7   7   7   7
Mix hgt (kft)...1.8 1.1 1.1 1.1 1.1 1.1 1.1 1.6 1.6 1.6 1.4 1.4
Transp wind dir.S   S   S   S   SE  SE  SE  S   S   S   S   S
Transp wind spd.5   3   3   3   7   7   7   7   7   7   7   7

.THURSDAY...

Sky/weather.........Mostly cloudy. Light rain showers likely all day.
Max temperature.....48-52.
Min humidity........96-100 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........South 6 to 8 mph.
Mixing height.......2600 ft AGL.
Transport winds.....South 6 to 8 mph.
CWR.................72 percent decreasing to 12 percent.
Chance of thunder...5 percent.

TIME (PST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CDY CDY CDY CDY MC  MC  MC  MC  MC  MC  MC  MC
CWR.............70  70  70  70  30  30  30  30  30  30  10  10
Chc of thdr (%).0   0   0   0   10  10  10  0   0   0   0   0
Temp............42  42  43  45  46  47  48  48  49  50  49  48
RH..............100 100 100 100 100 100 99  99  98  97  97  98
SL/VL wind dir..N   SE  SE  SE  SE  SE  SE  S   S   S   NW  NW
SL/VL wind spd..0   1   1   1   1   1   1   2   2   2   1   1
SL/VL wind gust.3   3   3   3   5   5   5   7   7   7   3   3
Ridge wind dir..S   S   S   S   S   S   S   S   S   S   SE  SE
Ridge wind spd..7   7   7   7   8   8   8   7   7   7   6   6
Mix hgt (kft)...1.4 1.7 1.7 1.7 2.3 2.3 2.3 2.6 2.6 2.6 2.1 2.1
Transp wind dir.S   S   S   S   S   S   S   S   S   S   SE  SE
Transp wind spd.7   7   7   7   8   8   8   7   7   7   6   6

$$
Forecaster...JW
Requested by...James Bollinger
Type of request...PRESCRIBED
.TAG 2526312.0/STO
.DELDT 11/19/25
.FormatterVersion 2.0.0
.EMAIL james.bollinger@usda.gov,german.guerrero@usda.gov,tobias.greenberg@usda.gov