653
FNUS76 KSGX 281629
FWSSGX

Spot Forecast for Corona Pile Burn...US Forest Service
National Weather Service San Diego CA
829 AM PST Fri Nov 28 2025

Forecast is based on ignition time of 0900 PST on November 28.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
No major changes from the previous forecast. Weather remains quiet
with no precipitation and generally light winds below 10 mph over
the next 48 hours (infrequent gusts up to 15 mph today).
Temperatures will continue to fall through Sunday, bottoming out a
few degrees below normal. Moisture returns today with humidity above
35% in the afternoons and excellent overnight recoveries. Patchy
fog will be possible in the early morning hours both Saturday and
Sunday, clearing out around sunrise.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 75.
Min humidity........38 percent.
Eye level winds.....Light winds becoming northwest around 4 mph
                    late in the afternoon.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 6 mph late in the morning
                    becoming light, then becoming northwest 5 to 6
                    mph late in the afternoon.
 Ridgetop...........West 5 to 10 mph.
CWR.................0 percent.
Mixing height.......2500 ft AGL.
Transport winds.....Northeast around 1 mph shifting to the west 5
                    to 8 mph in the afternoon.

TIME (PST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   4   4   4   3   3   3   3   3
Weather cov.....
Weather type....
Tstm cov........
Temp............59  65  69  72  73  74  73  72  68
RH..............59  50  43  41  38  39  42  46  53
20 FT wind dir..N   NW  NW  NW  NW  NW  W   W   NW
20 FT wind spd..1   1   2   2   3   5   6   6   5
20 FT wind gust.    4   5   6   7   10  11  10  8
Eye lvl wnd dir.N   NW  NW  NW  NW  NW  W   W   NW
Eye lvl wnd spd.1   1   1   1   3   4   4   4   3
Eye lvl wnd gst.    3   4   4   5   7   8   7   6
Ridge wind dir..W   W   W   W   W   W   W   W   W
Ridge wind spd..10  10  10  10  10  5   5   10  5
CWR.............0   0   0   0   0   0   0   0   0

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent). Patchy fog after
                    3 am.
Min temperature.....Around 48.
Max humidity........82 percent.
Eye level winds.....Light winds.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........Southwest 5 to 10 mph decreasing to around 0
                    mph after 3 am, then increasing to northwest
                    around 10 mph after 3 am shifting to the north
                    early in the morning.
CWR.................0 percent.
Mixing height.......300 ft AGL.
Transport winds.....West 3 to 5 mph shifting to the east 2 to 3 mph
                    early in the evening, then shifting to the
                    southeast around 2 mph after 3 am shifting to
                    the east after 3 am.

TIME (PST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........3   6   6   6   14  14  14  15  15  15  34  34
Weather cov.....                                        PTY PTY
Weather type....                                        FOG FOG
Tstm cov........
Temp............63  61  59  58  56  55  54  53  52  51  50  49
RH..............64  69  73  74  78  76  75  77  78  81  82  80
20 FT wind dir..N   N   NE  E   E   E   E   E   E   E   E   E
20 FT wind spd..3   2   2   2   2   1   1   1   1   1   1   1
20 FT wind gust.5   6   5   5   5   5   4   4   4   4   4   4
Eye lvl wnd dir.N   N   NE  E   E   E   E   E   E   E   E   E
Eye lvl wnd spd.2   1   1   1   1   1   1   1   1   1   1   1
Eye lvl wnd gst.4   4   4   4   4   4   3   3   3   3   3   3
Ridge wind dir..W   W   SW  S   W   SW  S   W   SW  SW  NW  N
Ridge wind spd..5   10  5   5   10  5   5   10  5   0   10  5
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

.SATURDAY...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly sunny (10-20 percent). Patchy fog early
                    in the morning.
Max temperature.....Around 74.
Min humidity........36 percent.
Eye level winds.....Light winds becoming west around 4 mph late in
                    the afternoon, then becoming light late in the
                    afternoon.
Wind (20 ft)........
 Slope/valley.......Light winds becoming west around 5 mph late in
                    the afternoon, then becoming light late in the
                    afternoon.
 Ridgetop...........Northeast around 5 mph shifting to the
                    northwest early in the morning, then shifting
                    to the northeast early in the morning shifting
                    to the north 5 to 10 mph in the late morning
                    and afternoon.
CWR.................0 percent.
Mixing height.......2200 ft AGL.
Transport winds.....East 2 to 3 mph shifting to the north in the
                    late morning and early afternoon, then shifting
                    to the west 5 to 6 mph late in the afternoon.

TIME (PST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........34  44  44  44  38  38  38  25  25  25  9   9
Weather cov.....PTY
Weather type....FOG
Tstm cov........
Temp............48  49  51  57  64  69  72  73  74  73  71  68
RH..............82  82  79  65  52  44  39  36  36  39  43  49
20 FT wind dir..E   NE  NE  N   N   N   NW  NW  NW  W   W   W
20 FT wind spd..1   1   1   1   1   1   1   2   3   5   5   3
20 FT wind gust.4   4   4   5   5   5   5   5   6   8   9   8
Eye lvl wnd dir.E   NE  NE  N   N   N   NW  NW  NW  W   W   W
Eye lvl wnd spd.1   1   1   1   1   1   1   1   2   3   4   3
Eye lvl wnd gst.3   3   3   4   4   4   4   4   5   6   7   6
Ridge wind dir..NE  NW  NE  NE  N   N   N   N   N   N   N   NE
Ridge wind spd..5   10  10  15  10  10  10  5   5   5   5   5
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

$$
Forecaster...SAMANTHA ZUBER
Requested by...Gregory Triffet
Type of request...PRESCRIBED
.TAG 2526645.2/SGX
.DELDT 11/28/25
.FormatterVersion 2.0.0
.EMAIL cyrus.galvan@usda.gov,gregory.triffet@usda.gov