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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 125 Pm Pst Fri Dec 1 2023
Tonight..Wind west to 10 knots...becoming southeast 10 knots after midnight. Wind waves around 2 feet or less. SWell west 4 to 5 feet at 9 seconds.
Saturday..Wind southeast to 10 knots in the morning...becoming variable less than 10 knots. Wind waves around 2 feet or less. SWell west 3 to 4 feet at 8 seconds.
Saturday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 to 3 feet at 7 seconds.
Sunday..Wind variable less than 10 knots...becoming northwest 10 knots with gusts to 15 knots in the afternoon. Wind waves around 2 feet or less. SWell west 2 feet at 7 seconds.
Sunday night..Wind north 10 knots. Gusts to 15 knots in the evening. Wind waves around 2 feet or less. SWell northwest 2 feet at 7 seconds.
Monday..Wind variable less than 10 knots...becoming northwest 10 knots in the afternoon. Wind waves around 2 feet or less. SWell west 1 to 2 feet.
Monday night..Wind northwest 10 knots in the evening...becoming variable less than 10 knots. Wind waves around 2 feet or less. SWell west 1 to 2 feet.
Tuesday..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 feet at 17 seconds.
Tuesday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 feet at 15 seconds.
Wednesday..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 to 3 feet at 17 seconds.
Wednesday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 to 4 feet at 17 seconds.

PZZ700 125 Pm Pst Fri Dec 1 2023
Synopsis for the far southern california coast.. At 1 pm, a 1028 mb high was 1100 nm west of san diego, and a 1004 mb low was over colorado. Winds and seas will continue to diminish through the afternoon. Onshore flow will weaken gradually through Saturday, with weak mostly north to northwest flow early next week.

FXUS66 KSGX 012124 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 124 PM PST Fri Dec 1 2023

SYNOPSIS
Any lingering clouds along and west of the mountains will diminish later this afternoon, leaving fair and cool weather. For the weekend into much of next week, high pressure will build east off the Pacific, setting up a warming trend with fair and dry weather. By the middle of next week, daytime temperatures will be well above average. Cooler weather arrives by next weekend.

DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

Skies will steadily clear throughout the day as 500mb troughing exits the region to the east, leading to a warming trend starting today. Weak onshore winds and NW flow aloft will keep temperatures this afternoon rather cool with highs topping out generally 3 to 7 degrees below normal. As ridging at 500mb builds into the region, this warming trend will continue into the middle of next week. By Tuesday and Wednesday of next week, much of Southern California will experience high temperatures anywhere from 10 to 15 degrees above normal. Highs middle of next week generally look to reach the lower to middle 70s at the coast, the middle 70s to upper 80s in the coastal valleys as well as the Lower Deserts, the upper 60s in the High Deserts, while the mountains range from the upper 50s near Big Bear Lake to the middle and upper 60s near Julian.

Weak onshore gradients continue through Sunday, accompanied by weak offshore drainage winds each evening through then. As the ridge builds in, gradients will steadily transition to straight offshore, favoring very clear skies aside from a few high clouds through mid next week. Current guidance continues to favor a rather weak Santa Ana pattern through the middle of next week with peak wind gusts as high as 25-35 mph occurring each morning Sunday through Wednesday, strongest occurring on Tuesday morning.
Daytime humidity may fall into the teens across some inland areas on Tuesday and Wednesday, but morning maximum humidities will range from 45-60 percent at the lowest, mitigating any more widespread or prolonged fire weather concerns.

Late Wednesday and Thursday will see the 500mb ridge move eastward and the flow aloft become more zonal as a shortwave trough moves into the Pacific Northwest. This will favor cooler and cloudier conditions as onshore flow takes hold again. Forecast uncertainty then increases due to the potential for a blocking pattern to set up. Some guidance, namely the ECMWF and EPS, is notably more bullish on some precipitation chances next week. The GEFS/Canadian guidance favor a weaker and more transient system in the meantime.
Stay tuned as details for late next week become more clear.

AVIATION
012030Z
Coast/Valleys
FEW-BKN mid-level clouds 3500-8000 ft MSL and high clouds AOA 25000 ft MSL will slowly clear through the afternoon. Mostly clear skies expected for much of Sat.

Mountains/Deserts...Mostly clear skies will prevail through Sat.

MARINE
Hazardous winds and seas will continue to diminish through the afternoon. No hazardous marine weather is expected through Wednesday.

SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.



SGX WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...None.

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National City
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Fri -- 12:52 AM PST     3.76 feet High Tide
Fri -- 04:31 AM PST     3.01 feet Low Tide
Fri -- 06:32 AM PST     Sunrise
Fri -- 10:34 AM PST     Moonset
Fri -- 10:49 AM PST     5.97 feet High Tide
Fri -- 04:42 PM PST     Sunset
Fri -- 06:46 PM PST     -0.10 feet Low Tide
Fri -- 08:41 PM PST     Moonrise
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