Spot Forecast
Issued by NWS Sacramento, CA

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FNUS76 KSTO 020028
FWSSTO

Spot Forecast for SPRINGS...CALFIRE TGU
National Weather Service Sacramento CA
528 PM PDT Mon Sep 1 2025

Forecast is based on forecast start time of 0600 PDT on September 02.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Warm and dry conditions Tuesday with local daytime
humidities in the low teens to 20s and poor overnight recovery.
Continued diurnal, terrain driven winds with breezy onshore winds
in the afternoons expected. Chances for quick, moving isolated
showers and thunderstorms begin Tuesday morning, south of
Interstate 80, that may track north into the fire`s vicinity by
late morning with chances continuing through the early afternoon.
Thunderstorm chances decrease each day following Tuesday.

.TUESDAY...

Sky/weather.........Mostly sunny.
Max temperature.....88-92.
Min humidity........24-28 percent.
Wind (20 ft)........
 Slope/valley.......Light winds shifting to the south 5 to 8 mph
                    in the afternoon with gusts up to 15 mph.
 Ridgetop...........East winds 5 to 7 mph shifting to the south
                    8 to 12 mph late in the afternoon.
Mixing height.......9500 ft AGL.
Transport winds.....East around 13 mph shifting to the south 10 to
                    14 mph late in the morning.
CWR.................4 percent.
Chance of thunder...10 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR PC  PC  PC  PC  PC  PC  PC  PC  MC  MC  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   10  10  10  10
Temp............77  76  77  81  85  86  87  89  88  90  89  88
RH..............29  30  32  30  27  27  27  26  26  26  26  27
SL/VL wind dir..E   E   E   SE  S   SW  W   W   SW  S   S   S
SL/VL wind spd..6   6   6   6   5   5   6   6   6   6   6   6
SL/VL wind gust.9   10  12  12  12  12  13  15  15  15  14  13
Ridge wind dir..E   E   E   SE  S   SW  W   W   SW  S   S   S
Ridge wind spd..13  13  9   9   9   13  13  13  14  14  14  10
Mix hgt (kft)...0.9 0.9 2.5 2.5 2.5 8.6 8.6 8.6 9.5 9.5 9.5 5.0
Transp wind dir.E   E   SE  SE  SE  S   S   S   S   S   S   SE
Transp wind spd.13  13  9   9   9   13  13  13  14  14  14  10

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy.
Min temperature.....70-74.
Max humidity........44-48 percent.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 8 mph becoming light early
                    in the morning.
 Ridgetop...........East 7 to 10 mph.
Mixing height.......800 ft AGL.
Transport winds.....East 7 to 10 mph.
CWR.................4 percent.
Chance of thunder...10 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC  PC  MCR MCR MCR PC  PC  PC  MCR MCR MCR MCR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).10  10  0   0   0   0   0   0   0   0   0   0
Temp............88  85  81  79  78  78  77  76  75  74  73  73
RH..............28  30  35  37  37  37  37  38  38  38  39  40
SL/VL wind dir..S   S   E   E   E   E   E   E   E   E   E   E
SL/VL wind spd..6   6   5   5   5   6   6   6   5   5   5   3
SL/VL wind gust.13  13  9   9   9   12  12  12  8   8   8   8
Ridge wind dir..S   S   E   E   E   E   E   E   E   E   E   E
Ridge wind spd..10  10  10  10  10  9   9   9   7   7   7   7
Mix hgt (kft)...5.0 5.0 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9
Transp wind dir.SE  SE  E   E   E   E   E   E   E   E   E   E
Transp wind spd.10  10  10  10  10  9   9   9   7   7   7   7

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....87-91.
Min humidity........27-31 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest 5 to 8 mph late
                    in the morning with gusts up to 15 mph.
 Ridgetop...........East 5 to 8 mph shifting to the southwest 8 to 12
                    mph late in the morning.
Mixing height.......7300 ft AGL.
Transport winds.....East winds 5 to 7 mph in the morning, then
                    shifting to the southwest 8 to 13 mph by the
                    afternoon.
CWR.................1 percent.
Chance of thunder...2 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR 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............72  72  73  75  78  81  83  85  87  88  88  87
RH..............42  45  46  44  41  37  35  33  31  30  29  29
SL/VL wind dir..E   E   E   E   E   SW  SW  SW  SW  SW  SW  SW
SL/VL wind spd..3   3   5   5   5   5   5   5   6   6   6   6
SL/VL wind gust.8   8   9   9   9   12  12  12  14  14  14  13
Ridge wind dir..E   E   E   E   E   SW  SW  SW  SW  SW  SW  SW
Ridge wind spd..7   7   6   6   6   8   8   8   12  12  12  12
Mix hgt (kft)...0.9 0.9 0.9 0.9 0.9 3.9 3.9 3.9 7.3 7.3 7.3 5.8
Transp wind dir.E   E   E   E   E   S   S   S   S   S   S   S
Transp wind spd.7   7   6   6   6   8   8   8   12  12  12  12

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
Mostly clear. Lows in the lower 70s. Highs in the upper 80s.
Light winds.
.FRIDAY...
Partly cloudy. Lows in the upper 60s. Highs in the mid 80s. Light
winds.
.SATURDAY...
Mostly clear. Lows in the mid 60s. Highs around 80. Light winds.

$$
Forecaster...DA
Requested by...Sean Hamilton
Type of request...WILDFIRE
.TAG 2521058.1/STO
.DELDT 09/01/25
.FormatterVersion 2.0.0
.EMAIL sean.hamilton@fire.ca.gov