Spot Forecast
Issued by NWS San Diego, CA

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Spot Forecast for Sierra Peak Rx...Forest Service
National Weather Service San Diego CA
430 AM PST Thu Dec 4 2025

Forecast is based on ignition time of 0742 PST on December 04.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Moderate offshore winds this morning will gradually taper off late
morning. Weaker easterly winds again tonight into Friday, turning
weakly onshore Friday afternoon. Low humidity but not extreme.
Poor recovery overnight. Warmer into next week with continued
weak offshore flow.

.TODAY...

Sky/weather.........Mostly sunny (10-20 percent).
Max temperature.....Around 62.
Min humidity........19 percent.
Eye level winds.....Northeast winds up to 11 mph with gusts to
                    around 16 mph in the morning and early
                    afternoon becoming light.
Wind (20 ft)........
 Slope/valley.......Northeast winds 6 to 15 mph with gusts to
                    around 22 mph shifting to the north around 5
                    mph in the afternoon, then becoming light
                    late in the afternoon.
 Ridgetop...........Northeast 15 to 20 mph decreasing to around 10
                    mph late in the afternoon.
CWR.................0 percent.
Mixing height.......4400 ft AGL.
Transport winds.....Northeast 12 to 20 mph decreasing to 9 to 10
                    mph late in the afternoon.

TIME (PST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........8   8   8   2   2   2   3   3   3   8   8
Weather cov.....
Weather type....
Tstm cov........
Temp............52  54  56  57  59  59  60  61  60  58  55
RH..............28  23  25  26  24  22  21  19  19  20  24
20 FT wind dir..E   E   E   E   NE  NE  NE  NE  NE  N   N
20 FT wind spd..15  15  14  13  12  9   8   7   6   5   3
20 FT wind gust.22  22  22  20  18  16  14  13  11  8   7
Eye lvl wnd dir.E   E   E   E   NE  NE  NE  NE  NE  N   N
Eye lvl wnd spd.11  11  10  9   8   7   6   5   4   3   2
Eye lvl wnd gst.16  16  16  14  13  12  10  9   8   6   5
Ridge wind dir..NE  NE  NE  NE  E   NE  NE  NE  N   NE  NE
Ridge wind spd..15  15  20  15  15  15  15  15  15  15  10
CWR.............0   0   0   0   0   0   0   0   0   0   0

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
Min temperature.....Around 48.
Max humidity........32 percent.
Eye level winds.....Light winds becoming east around 4 mph late in
                    the evening, then becoming light overnight
                    becoming southeast up to 6 mph overnight.
Wind (20 ft)........
 Slope/valley.......Southeast winds 5 to 8 mph early in the evening
                    becoming light, then becoming east around 5 mph
                    late in the evening becoming light becoming
                    southeast 5 to 8 mph overnight.
 Ridgetop...........Northeast 10 to 15 mph shifting to the north 5
                    to 10 mph overnight.
CWR.................0 percent.
Mixing height.......100 ft AGL.
Transport winds.....East 8 to 10 mph becoming 8 to 9 mph overnight.

TIME (PST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........8   8   8   8   9   9   9   8   8   8   2   2
Weather cov.....
Weather type....
Tstm cov........
Temp............53  53  53  53  53  53  53  53  52  51  51  49
RH..............25  23  29  31  29  26  23  19  21  21  20  25
20 FT wind dir..E   E   E   E   E   E   E   E   SE  SE  SE  SE
20 FT wind spd..3   2   3   3   5   5   3   3   5   6   7   8
20 FT wind gust.6   6   7   8   9   8   7   7   9   11  12  13
Eye lvl wnd dir.E   E   E   E   E   E   E   E   SE  SE  SE  SE
Eye lvl wnd spd.2   2   2   3   4   3   2   2   4   4   5   6
Eye lvl wnd gst.5   5   5   6   7   6   5   5   7   8   9   9
Ridge wind dir..NE  NE  NE  NE  NE  NE  N   N   N   N   N   N
Ridge wind spd..10  15  10  10  15  10  10  10  5   5   10  5
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 65.
Min humidity........17 percent.
Eye level winds.....South winds up to 6 mph early in the morning
                    becoming light, then becoming south up to 6 mph
                    with gusts to around 11 mph in the afternoon.
Wind (20 ft)........
 Slope/valley.......Southeast winds around 8 mph decreasing to 6 to
                    7 mph early in the morning, then becoming light
                    late in the morning becoming southwest 5 to 9
                    mph with gusts to around 15 mph in the
                    afternoon.
 Ridgetop...........North 5 to 10 mph increasing to 10 to 15 mph
                    late in the afternoon.
CWR.................0 percent.
Mixing height.......1800 ft AGL.
Transport winds.....East 3 to 7 mph shifting to the northwest 3 to
                    5 mph late in the morning, then shifting to the
                    southwest 5 to 6 mph in the afternoon.

TIME (PST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2   2   2   2   3   3   3   2   2   2   2   2
Weather cov.....
Weather type....
Tstm cov........
Temp............51  51  53  56  59  61  63  64  64  62  59  57
RH..............24  23  23  21  17  17  19  21  21  22  35  36
20 FT wind dir..SE  SE  S   W   W   W   W   W   SW  SW  SW  S
20 FT wind spd..8   7   6   3   2   2   3   5   7   8   9   7
20 FT wind gust.13  12  10  7   5   6   7   10  11  14  15  13
Eye lvl wnd dir.SE  SE  S   W   W   W   W   W   SW  SW  SW  S
Eye lvl wnd spd.6   5   4   2   1   1   2   4   4   6   6   5
Eye lvl wnd gst.9   9   7   5   4   4   5   7   8   10  11  9
Ridge wind dir..N   N   N   N   N   N   N   N   N   N   N   N
Ridge wind spd..5   10  5   5   10  10  10  10  15  15  15  10
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Clear. Lows in the upper 40s. Highs in the mid 60s. Light winds
at eye level.
.SUNDAY...
Clear. Lows in the lower 50s. Highs in the upper 60s. Light
winds at eye level.
.MONDAY...
Mostly clear. Lows in the mid 50s. Highs in the lower 70s.
Northeast winds around 5 mph at eye level.

$$
Forecaster...MIGUEL MILLER
Requested by...Cyrus Galvan
Type of request...PRESCRIBED
.TAG 2526681.4/SGX
.DELDT 12/04/25
.FormatterVersion 2.0.0
.EMAIL cyrus.galvan@usda.gov