699
FNUS76 KSTO 280335
FWSSTO

Spot Forecast for Alder Springs Under Burn...USFS
National Weather Service Sacramento CA
835 PM PDT Tue Oct 27 2026

Forecast is based on ignition time of 0700 PDT on October 28.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Light winds forecasted Wednesday and Thursday with no
precipitation forecasted through Thursday. A brief drying trend
begins Wednesday, lowering afternoon humidities into the 20s to
low 30s and overnight recoveries into the 40s. Thursday will see
similar daytime trends ahead of increased moisture expected Friday
into the weekend. Chances for light precipitation has decreased
with now no accumulating precipitation at this time.

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....56-60.
Min humidity........28-33 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming east 4 to 7 mph early in
                    the afternoon.
 Ridgetop...........Northwest winds up to 5 mph early in the morning
                    east 5 to 8 mph early in the afternoon.
Mixing height.......Increasing up to 2500 ft AGL.
Transport winds.....Northwest winds up to 5 mph early in the morning
                    east 4 to 7 mph early in the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR CLR MCR MCR CLR CLR CLR MCR CLR MCR MCR
Temp............39  38  41  49  54  55  57  58  57  56  55
RH..............62  63  55  41  33  33  32  31  31  32  35
SL/VL wind dir..W   W   NW  NW  N   NE  E   E   E   E   SE
SL/VL wind spd..5   5   3   2   2   3   5   5   3   3   2
SL/VL wind gust.8   8   7   5   6   8   10  10  10  9   7
Ridge wind dir..W   W   NW  NW  N   NE  E   E   E   E   SE
Ridge wind spd..6   5   5   5   5   5   5   5   5   5   3
Mix hgt (kft)...0.5 0.7 0.7 0.7 2.1 2.1 2.1 2.5 2.5 2.5 0.8
Transp wind dir.W   W   NW  NW  N   NE  E   E   E   E   SE
Transp wind spd.6   5   5   5   5   5   5   5   5   5   3

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear then becoming mostly cloudy.
Min temperature.....40-44.
Max humidity........44-48 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........West 4 to 7 mph.
Mixing height.......Decreasing as low as 300 ft AGL.
Transport winds.....Light winds
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR MCR MCR MCR MCR PC  PC  MC  MC  MC  MC  MC
Temp............49  46  45  44  45  44  45  45  44  44  44  44
RH..............42  42  43  43  41  43  42  43  43  42  40  40
SL/VL wind dir..SW  W   W   W   W   W   W   W   W   W   W   W
SL/VL wind spd..2   3   3   2   1   1   1   1   1   1   1   1
SL/VL wind gust.6   7   7   5   3   2   2   2   2   2   2   2
Ridge wind dir..SW  W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..3   3   3   3   3   3   3   3   3   3   3   3
Mix hgt (kft)...0.8 0.8 0.4 0.4 0.4 0.5 0.5 0.5 0.4 0.4 0.4 0.3
Transp wind dir.SW  W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.3   3   3   3   3   3   3   3   3   3   3   3

.THURSDAY...

Sky/weather.........Mostly cloudy.
Max temperature.....53-57.
Min humidity........29-34 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southeast 5 to 8 mph late
                    in the afternoon
 Ridgetop...........West 3 to 6 mph shifting to southeast winds
                    around 7 mph in the afternoon.
Mixing height.......Increasing up to 3000 ft AGL.
Transport winds.....Light winds becoming southeast winds 5 to 8
                    mph 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.......MC  MC  MC  MC  MC  MC  MC  MC  MC  MC  MC  CDY
Temp............44  43  42  44  49  52  53  54  55  54  53  51
RH..............40  40  43  44  37  32  34  34  33  35  38  42
SL/VL wind dir..W   W   W   W   W   E   E   E   SE  SE  SE  SE
SL/VL wind spd..1   1   1   1   1   3   3   3   5   5   5   3
SL/VL wind gust.2   2   3   3   3   8   8   8   12  12  12  10
Ridge wind dir..W   W   W   W   W   E   E   E   SE  SE  SE  SE
Ridge wind spd..3   3   3   3   3   5   5   5   6   7   8   5
Mix hgt (kft)...0.3 0.3 0.6 0.6 0.6 2.1 2.1 2.1 3.0 3.0 3.0 2.0
Transp wind dir.W   W   W   W   W   E   E   E   SE  SE  SE  SE
Transp wind spd.3   3   3   3   3   4   5   5   6   6   6   5

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Partly cloudy. Areas of frost in the morning. Lows in the upper
30s. Highs in the lower 50s. Light winds.
.SATURDAY...
Mostly cloudy. Lows in the mid 30s. Highs in the upper 40s. Light
winds.
.SUNDAY...
Partly cloudy. Slight chance of rain. Lows in the mid 30s. Highs
in the lower 50s. Northwest winds around 5 mph.

$$
Forecaster...DA
Requested by...Brad Tovar
Type of request...PRESCRIBED
.TAG 2624436.2/STO
.DELDT 10/28/26
.FormatterVersion 2.0.0
.EMAIL bradford.tovar@usda.gov,william.bettencourt@usda.gov,adam.coronado@usda.gov