848
FNUS76 KSGX 201546
FWSSGX

Spot Forecast for North Main Divide Rx...USFS
National Weather Service San Diego CA
846 AM PDT Mon May 20 2024

Forecast is based on ignition time of 0900 PDT on May 22.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A deep marine layer up to 4000 feet will mix out and clear
today and then settle down to 2500 to 3000 feet for Tuesday and Wednesday.
A weather disturbance moving through today will bring brief light offshore
flow for early Tuesday morning on its backside. A return to normal onshore
flow for Tuesday afternoon through midweek. Another weather disturbance
swings through late Thursday and Friday keeping a general upper level
trough over southern California.

.WEDNESDAY...

Sky/weather.........Mostly sunny (5-15 percent).
Max temperature.....Around 70.
Min humidity........55 percent.
Eye level winds.....Light winds becoming southwest up to 5 mph in
                    the afternoon.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest 5 to 7 mph in
                    the afternoon.
 Ridgetop...........Northwest 3 to 5 mph shifting to the west early in
                    the afternoon, then increasing to around 10 mph
                    late in the afternoon.
CWR.................0 percent.
LAL.................1.
Mixing height.......2600 ft AGL.
Transport winds.....Southeast around 3 mph shifting to the
                    southwest 4 to 9 mph in the late morning and
                    afternoon.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........12  12  10  10  10  10  10  10  6

Temp............58  61  64  66  67  67  67  66  64
RH..............63  60  57  56  57  58  59  60  62
20 FT wind dir..S   SW  W   W   SW  SW  SW  SW  SW
20 FT wind spd..2   3   3   5   6   6   7   7   7
20 FT wind gust.6   6   8   9   10  11  12  13  13
Eye lvl wnd dir.S   SW  W   W   SW  SW  SW  SW  SW
Eye lvl wnd spd.1   2   3   4   4   4   4   5   5
Eye lvl wnd gst.4   5   6   7   7   8   9   9   9
Ridge wind dir..N   N   N   N   W   SW  W   W   W
Ridge wind spd..5   5   0   0   0   5   5   10  10
CWR.............0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1

.WEDNESDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....Around 47.
Max humidity........80 percent.
Eye level winds.....Southwest winds around 4 mph shifting to the
                    south early in the evening, then becoming light
                    overnight.
Wind (20 ft)........
 Slope/valley.......Southwest winds around 5 mph early in the
                    evening becoming light, then becoming south
                    around 5 mph overnight.
 Ridgetop...........West 5 to 10 mph shifting to the southwest
                    around 3 mph early in the morning.
CWR.................0 percent.
Mixing height.......0 ft AGL.
Transport winds.....Southwest 3 to 9 mph shifting to the southeast
                    2 to 6 mph late in the evening.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........6   6   6   6   6   33  33  33  33  33  33  51

Temp............61  57  54  52  51  50  50  50  50  50  50  50
RH..............67  73  78  80  79  78  78  77  76  77  78  78
20 FT wind dir..SW  SW  SW  SW  SW  S   S   S   S   S   S   S
20 FT wind spd..7   7   3   3   3   3   3   3   5   5   5   5
20 FT wind gust.12  11  9   7   6   6   6   7   8   8   8   9
Eye lvl wnd dir.SW  SW  SW  SW  S   S   S   S   S   S   S   S
Eye lvl wnd spd.4   4   4   3   2   1   2   2   3   3   3   3
Eye lvl wnd gst.9   8   7   5   5   5   5   5   6   6   6   7
Ridge wind dir..W   W   W   W   W   W   W   SW  SW  SW  SW  SW
Ridge wind spd..10  10  10  10  10  5   5   5   5   5   5   0
CWR.............0   0   0   0   0   0   0   0   0   0   0   M
LAL.............1   1   1   1   1   1   1   1   1   1   1   M

.THURSDAY...

Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly sunny (10-20 percent).
Max temperature.....Around 63.
Min humidity........62 percent.
Eye level winds.....Southwest winds up to 5 mph. Gusts up to 20 mph
                    late in the morning.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 7 mph. Gusts up to 15 mph late
                    in the morning.
 Ridgetop...........South 3 to 5 mph shifting to the southeast late
                    in the morning.
CWR.................0.
Mixing height.......2300 ft AGL.
Transport winds.....South 5 to 10 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........51  51  51  51  51  5   5   5   5   5   5   22

Temp............51  52  54  57  59  61  63  62  62  62  63  61
RH..............76  73  70  67  65  63  62  67  68  69  67  70
20 FT wind dir..S   S   S   S   S   S   S   S   SW  SW  SW  SW
20 FT wind spd..5   5   6   6   6   7   7   7   7   7   7   6
20 FT wind gust.9   9   11  11  11  14  14  14  14  14  14  13
Eye lvl wnd dir.S   S   S   S   S   S   S   S   SW  SW  SW  SW
Eye lvl wnd spd.3   3   4   4   4   5   5   5   5   5   5   4
Eye lvl wnd gst.7   7   8   8   8   10  10  10  10  10  10  9
Ridge wind dir..S   S   S   S   SE  SE  SE  SE  S   S   S   S
Ridge wind spd..5   5   5   5   0   0   0   5   5   5   5   5
CWR.............M   M   M   M   M   M   M   M   M   M   M   M
LAL.............M   M   M   M   M   M   M   M   M   M   M   M

$$
Forecaster...ALEX TARDY
Requested by...Cyrus Galvan
Type of request...PRESCRIBED
.TAG 2414725.0/SGX
.DELDT 05/20/24
.FormatterVersion 2.0.0
.EMAIL Cyrus.galvan@usda.gov