680
FNUS76 KSGX 270103
FWSSGX

Spot Forecast for Corona Pile Burn...US Forest Service
National Weather Service San Diego CA
503 PM PST Wed Nov 26 2025

Forecast is based on ignition time of 0800 PST on November 29.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Cooler conditions expected over the weekend into early next week,
with night and morning low clouds and patchy fog. Winds will
follow a diurnal cycle of easterly overnight and in the mornings
and westerly in the afternoons. No impactful winds
are expected at this time through Monday. Overnight humidity
recovery is expected to be good. A weather system is expected for
the middle of next week, but there remains considerable
uncertainty in the system`s track. The ultimate track of the
system will determine whether we may see an increased chance for
showers or Santa Ana winds by Tuesday or Wednesday.

.SATURDAY...

Sky/weather.........Partly cloudy (20-30 percent) then becoming
                    mostly sunny (20-30 percent).
Max temperature.....Around 72.
Min humidity........42 percent.
Eye level winds.....East winds becoming west up to 5 mph.
Wind (20 ft)........
 Slope/valley.......East winds becoming west 4-8 mph.
 Ridgetop...........
CWR.................0 percent.
Mixing height.......3100 ft AGL.
Transport winds.....East 3 to 6 mph shifting to the west
                    around 6 mph late in the afternoon.

TIME (PST)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  26  26  26  26  26  26  26  24  24
Temp............53  58  62  66  69  70  71  70  69  67
RH..............71  63  56  49  44  42  42  45  49  54
20 FT wind dir..E   E   E   E   E   W   W   W   W   W
20 FT wind spd..1   1   1   1   1   2   2   2   2   2
20 FT wind gust.4   4   4   4   4   6   6   6   8   8
Eye lvl wnd dir.E   E   E   E   E   W   W   W   W   W
Eye lvl wnd spd.1   1   1   1   1   1   1   1   1   1
Eye lvl wnd gst.3   3   3   3   3   5   5   5   6   6
CWR............ 0   0   0   0   0   0   0   0   0   0

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....Around 48.
Max humidity........91 percent.
Eye level winds.....Light winds.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........
CWR.................0 percent.
Mixing height.......600 ft AGL.
Transport winds.....Southwest 5 to 6 mph shifting to the south and east
                    2 to 3 mph overnight.

TIME (PST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........24  24  24  24  23  23  23  23  23  23  40  40
Temp............63  61  58  57  55  54  53  53  52  51  51  50
RH..............60  66  71  75  78  80  82  82  83  85  86  89
20 FT wind dir..W   SW  SW  SW  S   S   S   E   E   E   E   E
20 FT wind spd..2   1   1   1   2   2   2   2   2   2   1   1
20 FT wind gust.8   4   4   4   6   6   6   5   5   5   5   5
Eye lvl wnd dir.W   SW  SW  SW  S   S   S   E   E   E   E   E
Eye lvl wnd spd.1   1   1   1   1   1   1   1   1   1   1   1
Eye lvl wnd gst.6   3   3   3   5   5   5   4   4   4   4   4
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

.SUNDAY...

Sky/weather.........Partly cloudy (35-45 percent).
Max temperature.....Around 67.
Min humidity........61 percent.
Eye level winds.....East winds becoming west 2-7 mph.
Wind (20 ft)........
 Slope/valley.......East winds becoming west up to 9 mph.
 Ridgetop...........
CWR.................4 percent
Mixing height.......3700 ft AGL.
Transport winds.....Southeast up to 5 mph shifting to the west 5 to
                    6 mph in the afternoon.

TIME (PST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  40  40  40  47  47  47  47  47  47  30  30
Temp............49  50  52  56  60  62  64  65  66  66  65  63
RH..............91  91  86  79  73  68  64  62  61  62  64  68
20 FT wind dir..E   SE  SE  SE  S   S   S   W   W   W   W   W
20 FT wind spd..1   2   2   2   2   2   2   2   2   2   3   3
20 FT wind gust.5   6   6   6   6   6   6   9   9   9   9   9
Eye lvl wnd dir.E   SE  SE  SE  S   S   S   W   W   W   W   W
Eye lvl wnd spd.1   1   1   1   1   1   1   1   1   1   2   2
Eye lvl wnd gst.4   4   4   4   5   5   5   7   7   7   7   7
CWR.............0   0   0   0   0   0   0   0   0   0   4   4

.MONDAY...
Mostly clear. Lows in the upper 40s. Highs around 70. 20 FT
winds: light out of the east in the morning, becoming westerly in
the afternoon 5-10 mph. Maximum relative humidity: 87 percent.
Minimum relative humidity: 40 percent.

$$
Forecaster...CASEY OSWANT
Requested by...Gregory Triffet
Type of request...PRESCRIBED
.TAG 2526645.0/SGX
.DELDT 11/26/25
.FormatterVersion 2.0.0
.EMAIL gregory.triffet@usda.gov,cyrus.galvan@usda.gov