Spot Forecast
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
355
FNUS76 KSGX 140031
FWSSGX
Spot Forecast for Line Fire...USFS
National Weather Service San Diego CA
431 PM PST Wed Nov 13 2024
Forecast is based on forecast start time of 0700 PST on November 14.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Mild, dry weather Thursday with average afternoon winds. A
weather system approaches late Thursday into early Friday.
Southwest winds pick up after 2300 PST Thursday, with windiest
conditions along the far eastern and northern perimeters of the
fire as well as in wind-prone canyons. Precipitation starts as
early as 0100 PST Friday, with the heaviest precipitation expected
after 0400 PST to about 0900 PST. A heavier shower with rates of
0.50"/hour is possible. Precipitation chances taper off Friday
afternoon into early Saturday, and precipitation will become
lighter and more isolated, ending Saturday morning. Snow levels
dropping to about 4500 ft MSL early Friday, with a dusting of snow
possible down to 4000 ft MSL late Friday into early Saturday.
Total Precipitation:
0.20" (lower elevations) to about 0.30" (higher elevations) in
liquid precipitation expected. 40% chance for more than 0.30", 30%
chance for more than 0.50" (generally at higher elevations). A
dusting of snow up to an inch of snow for elevations 4000-7000 ft,
up to 1.5" snow 7000 ft and above.
Santa Ana winds:
Moderate to high confidence in winds turning northeasterly late Mon
(11/18) into early Tues (11/19) morning with a least a weak Santa
Ana event likely continuing into early Thu (11/21). Based on
current evidence, this will most likely this will be a
moderately strong event with a 10% chance for a strong event.
Forecast below (narrative and table) are for the far eastern
portion of the fire boundary.
.THURSDAY...
Sky/weather.........Sunny becoming partly cloudy.
Max temperature.....50 (7000 ft) to 64 (4000 ft) degrees.
Min humidity........11 (4000 ft) to 19 (7000 ft) percent.
Eye level winds.....Light, variable winds in the morning
becoming southwest winds up to 5 mph
after 1100 PST.
Wind (20 ft)........
Slope/valley.......Light, variable winds in the morning
becoming southwest 6-7 mph, gusts 12-15
mph after 1100 PST.
Ridgetop...........Southwest 10-15 mph.
CWR.................1 percent.
LAL.................1.
Mixing height.......Increasing to 2800 ft AGL.
Transport winds.....Southwest 3 to 12 mph.
TIME (PST) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
Sky (%).........0 0 0 0 0 26
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............42 50 55 55 52 47
RH..............22 19 19 21 22 28
20 ft wind......SW 5 SW 5 SW 6 SW 7 SW 6 SW 5
20 ft wind gust.8 9 12 14 12 10
Eye level wind..SW 3 SW 4 SW 4 SW 5 SW 4 SW 4
Eye lvl wnd gst.6 7 8 9 8 7
Ridgetop wind...SW 10 SW 15 SW 15 SW 15 SW 15 SW 15
CWR.............0 0 0 0 0 0
LAL.............1 1 1 1 1 1
.THURSDAY NIGHT...
Sky/weather.........Partly cloudy. Intermittent rain and
snow likely (50-60% chance for any one area)
after about 0200 PST Fri. Snow levels 6000-6500 ft.
Min temperature.....24 (7000 ft) to 37 (4000 ft) degrees.
Max humidity........71 (4000 ft) up to 100 percent (7000 ft).
Eye level winds.....Southwest winds increasing after 2300-2400 PST to
8-12 mph, gusts 15-18 mph.
Wind (20 ft)........
Slope/valley.......Southwest winds increasing after 2300-2400 PST to 12-20
mph, gusts 25-28 mph. Windiest at higher elevations and on
eastern side of fire.
Ridgetop...........Southwest 15-20 mph increasing to 25-30
mph late in the evening.
CWR.................1 percent increasing to 53 percent after about 0200 PST Fri.
LAL.................1.
Mixing height.......Decreasing to 500 ft AGL.
Transport winds.....South 7 to 16 mph.
TIME (PST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........26 26 54 54 54 69
Weather cov..... CHANCE CHANCE CHANCE LIKELY
Weather type....NONE NONE SNSHWR SNSHWR SNSHWR SNSHWR
Tstm cov........
Temp............44 39 37 35 33 32
RH..............32 41 49 68 82 83
20 ft wind......SW 6 S 7 S 9 SW 12 SW 14 SW 17
20 ft wind gust.10 11 15 18 21 26
Eye level wind..SW 4 S 4 S 7 SW 8 SW 10 SW 12
Eye lvl wnd gst.7 8 11 13 15 19
Ridgetop wind...SW 15 SW 15 SW 20 SW 25 SW 25 SW 25
CWR.............0 0 40 40 40 50
LAL.............1 1 1 1 1 1
.FRIDAY...
Sky/weather.........Partly cloudy. Intermittent rain and snow likely
(50-60% chance for any one area) early in the morning,
decreasing to 25-35% chance in the late morning and
afternoon. Snow levels 5000 ft in the morning decreasing
to 4000 ft in the late afternoon.
Max temperature.....30 (7000 ft) to 47 (4000 ft) degrees.
Min humidity........70 (4000 ft) to 85 (7000 ft) percent.
Eye level winds.....Southwest winds 6-10 mph, gusts 12-15 mph in the morning
and early afternoon, becoming 4-6 mph in the late afternoon.
Wind (20 ft)........
Slope/valley.......West-southwest winds 12-15 mph, gusts 20-25 in the morning and
early afternoon, becoming southwest 8-12 with gusts
13-16 mph in the late afternoon.
Ridgetop...........Southwest 20-25 mph.
CWR.................53 percent decreasing to 24 percent in the late
morning and afternoon (after about 1100 PST).
LAL.................1.
Mixing height.......Increasing to 4100 ft AGL.
Transport winds.....Southwest 17 to 23 mph.
TIME (PST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........69 69 57 57 57 61
Weather cov.....LIKELY LIKELY CHANCE CHANCE CHANCE S CHC
Weather type....SNSHWR SNSHWR SNSHWR SNSHWR SNSHWR SNSHWR
Tstm cov........
Temp............31 32 34 34 34 32
RH..............85 83 78 77 81 86
20 ft wind......SW 17 SW 17 SW 16 SW 15 SW 13 SW 10
20 ft wind gust.26 26 25 22 20 18
Eye level wind..SW 12 SW 12 SW 11 SW 11 SW 9 SW 7
Eye lvl wnd gst.19 19 18 16 15 13
Ridgetop wind...SW 25 SW 25 SW 20 SW 20 SW 20 SW 20
CWR.............50 50 20 20 20 20
LAL.............1 1 1 1 1 1
$$
Forecaster...CHANDLER PRICE
Requested by...Raymond Trujillo
Type of request...WILDFIRE
.TAG 2426492.0/SGX
.DELDT 11/13/24
.FormatterVersion 2.0.0
.EMAIL raymond.trujillo@usda.gov