Sunrise 6:03 AM   Sunset 7:25 PM Moonrise 7:30 PM   Moonset 5:50 AM

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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 149 Pm Pdt Tue Apr 23 2024
Tonight - Wind northwest 10 knots. Gusts to 15 knots this evening. Wind waves around 2 feet or less. SWell west 2 feet at 4 seconds. SWell south 3 feet this evening. Patchy drizzle after midnight. Wednesday - Wind northwest 10 to 15 knots. Gusts to 20 knots in the afternoon. Wind waves around 2 feet or less. SWell west 2 to 3 feet at 4 seconds. Patchy drizzle in the morning. Wednesday night - Wind northwest 10 to 15 knots with gusts to 20 knots. Wind waves around 2 feet or less. SWell west 3 feet at 5 seconds. A slight chance of rain after midnight. Thursday - Wind west 10 to 15 knots. Wind waves around 2 feet or less. SWell west 3 feet at 5 seconds. A slight chance of rain in the morning. Thursday night - Wind west 10 to 15 knots. Wind waves around 2 feet or less. SWell west 3 to 4 feet at 5 seconds. A slight chance of rain after midnight. Friday - Wind variable less than 10 knots - .becoming west 15 knots with gusts to 20 knots in the afternoon. Wind waves around 2 feet or less - .becoming 3 feet in the afternoon. SWell west 4 to 5 feet. A slight chance of rain in the morning. Friday night - Wind west 15 to 20 knots - .becoming northwest 10 to 20 knots after midnight. Gusts to 25 knots. Wind waves around 3 feet. SWell west 5 to 8 feet. Saturday - Wind west 10 knots. Gusts to 15 knots in the morning. Wind waves around 2 feet or less. SWell west 5 to 7 feet at 9 seconds. Saturday night - Wind west 10 knots in the evening - .becoming variable less than 10 knots. Wind waves around 2 feet or less. SWell west 4 to 5 feet at 9 seconds. Sunday - Wind variable less than 10 knots - .becoming west 10 knots in the afternoon. Wind waves around 2 feet or less. SWell west 3 to 4 feet at 9 seconds. Sunday night - Wind northwest 10 knots in the evening - .becoming variable less than 10 knots. Wind waves around 2 feet or less. SWell west 3 to 4 feet at 8 seconds.

PZZ700 149 Pm Pdt Tue Apr 23 2024
Synopsis for the far southern california coast - At 1 pm, a 1018 mb high was 600 nm west of san diego and a 1006 mb low was near las vegas. Onshore flow will strengthen slightly today. A robust coastal eddy arrives Friday. Stronger northwest winds and choppy seas arrive late Thursday and continue into early Saturday, likely generating hazardous conditions at times, especially in the outer waters.

FXUS66 KSGX 232042 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 142 PM PDT Tue Apr 23 2024

SYNOPSIS
A cooling trend will continue through Thursday with periods of stronger and gusty southwest to west winds continuing for the mountains and deserts through Friday evening. A deep marine layer will continue into Friday with some light precipitation from drizzle or light rain possible from the coast to the coastal slopes of the mountains, mostly during nights and mornings. Then warmer and drier with weaker winds for Saturday through Monday with Sunday high temperatures around average and Monday high temperatures around 5 degrees above average.

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

A closed low at 500mb will continue to move eastward over the Pacific, moving inland over SoCal sometime late Wednesday Night into Thursday morning. Following this low, a second low pressure system will dig in over the western United States Thursday through Saturday. This will maintain onshore flow for much of this week, leading to cooling temperatures, extensive marine layer clouds, and gusty winds for the mountains and deserts through much of this week.

This morning’s marine layer deepened to roughly 4000-4500 FT with low clouds extending well inland, even up into the Cajon Pass.
Some areas of drizzle were also noted across much of the Inland Empire, inland Orange County, and the San Diego County Valleys.
With onshore flow essentially locked in for the next several days and an already deep marine layer in place, there will be persistent chances for drizzle each night through Thursday night.

As implied by the continued onshore flow, there will also be periods of gusty west to southwest winds over the mountains and desert foothills during the afternoons and evenings. Winds do look to trend a bit stronger each day through Friday, and Wind Advisories may be needed starting tomorrow afternoon, with the strongest winds occurring Friday afternoon/evening. Peak wind gusts of 40-60 mph will be common, with higher gusts over 60 mph occurring over mountain ridgelines, below passes, and through wind-prone canyons.

This weekend through early next week will see weak ridging at 500mb slowly yet steadily build into the region. This will support warming and drying through early next week. Temperatures look to be at their warmest on Monday, when highs may top out a few degrees warmer than seasonal normals. This would also be accompanied by a shallower marine layer, with low clouds and fog becoming more and more confined to the coast.

AVIATION
232030Z
Coast/Valleys/Foothills
Expect inland clearing with partial clearing in the coastal areas through 22-01Z. CIGs around 2000-3000 feet could impact coastal airports through afternoon. Low clouds to push inland and fill the coastal basin to foothills again after 01Z into early Wednesday. Low clouds with bases 1500-2500 feet MSL, locally down to 1000 feet in -DZ, and tops to 4000 feet are expected again overnight and early Wednesday Morning. VIS 0-5SM inland, where clouds and terrain intersect obscuring foothills.

Mountains/Deserts...Mostly clear skies (above 4000 feet MSL on coastal slopes) with unrestricted VIS today and tonight.

MARINE
No hazardous marine conditions are expected through Thursday.
Stronger northwest winds and choppy seas arrive late Thursday and continue into early Saturday, likely generating hazardous conditions at times, especially in the outer waters.

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



SGX WATCHES/WARNINGS/ADVISORIES
CA...Wind Advisory from 5 PM Wednesday to 11 PM PDT Friday for Apple and Lucerne Valleys-Coachella Valley-Riverside County Mountains-San Bernardino County Mountains-San Diego County Deserts-San Diego County Mountains-San Gorgonio Pass Near Banning.

PZ...None.

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San Clemente
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Tue -- 03:46 AM PDT     -0.20 feet Low Tide
Tue -- 05:54 AM PDT     Moonset
Tue -- 06:10 AM PDT     Sunrise
Tue -- 09:48 AM PDT     3.95 feet High Tide
Tue -- 03:18 PM PDT     1.00 feet Low Tide
Tue -- 04:51 PM PDT     Full Moon
Tue -- 07:27 PM PDT     Sunset
Tue -- 07:32 PM PDT     Moonrise
Tue -- 09:27 PM PDT     5.40 feet High Tide
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