Sunrise 5:41 AM   Sunset 7:47 PM Moonrise 6:20 PM   Moonset 4:20 AM

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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 210 Pm Pdt Tue May 21 2024
Tonight - W wind 10 kt early this evening, becoming variable less than 10 kt. Seas 4 ft. Wave detail: W 1 foot at 4 seconds, W 3 ft at 9 seconds and sw 3 ft at 17 seconds. Wed - Wind variable less than 10 kt, becoming sw 10 kt in the afternoon. Seas 3 to 4 ft. Wave detail: S 1 foot at 4 seconds, W 3 ft at 9 seconds and sw 3 ft at 17 seconds. Wed night - Wind variable less than 10 kt. Seas 3 to 4 ft. Wave detail: sw 1 foot at 4 seconds, W 3 ft at 8 seconds and sw 3 ft at 15 seconds. Thu - SW wind 10 kt. Seas 4 ft. Wave detail: sw 2 ft at 4 seconds, W 4 ft at 7 seconds and sw 2 ft at 15 seconds. Thu night - SW wind 10 kt in the evening, becoming variable less than 10 kt. Seas 3 to 4 ft. Wave detail: sw 1 foot at 4 seconds, W 3 ft at 7 seconds and S 2 ft at 15 seconds. Fri - Wind variable less than 10 kt, becoming W 10 kt in the afternoon. Seas 3 to 4 ft. Wave detail: sw 2 ft at 4 seconds, W 3 ft at 7 seconds and S 2 ft at 14 seconds. Fri night - W wind 10 kt. Seas 4 to 5 ft. Sat - W wind 10 kt. Seas 4 ft. Sat night - W wind 10 kt. Seas 4 ft. Sun - W wind 10 kt. Seas 4 ft. Sun night - NW wind 10 kt. Seas 4 ft.

PZZ700 210 Pm Pdt Tue May 21 2024
Synopsis for the far southern california coast - At 2 pm, a 1022 mb surface high was 300 nm west of cape mendocino and a 1008 mb low was over western arizona. Weak to moderate onshore flow will continue through Saturday. A weak coastal eddy will circulate Wednesday through Friday.

FXUS66 KSGX 212115 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 215 PM PDT Tue May 21 2024

SYNOPSIS
A slight warming trend through Wednesday, followed by a cooling trend Thursday through Saturday with a deeper marine layer and more low cloud coverage. There will also be stronger and gusty southwest to west winds for the mountains and deserts. High pressure then brings a warming trend for Sunday into the middle of next week with the marine layer becoming gradually shallower.

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

This morning’s MSAS MSLP data showed surface high pressure located over the Eastern Pacific, while some offshore flow was briefly noted at various higher elevation observation sites in SoCal. These were likely the culprit for the earlier and rather random clearing patterns seen this morning. The offshore flow and some slight height increases later today will result in a shallower marine layer tonight into tomorrow, as well as slightly warmer temperatures today and Wednesday. Low clouds will still be extensive enough to cover much of the coasts and valleys Tuesday morning, with slightly less coverage Wednesday morning.

For Thursday into the weekend, troughing at 500mb will expand over the Southwestern US. This will enhance the onshore flow again, with a coastal eddy also forming Thursday and Friday. Ultimately this means more marine layer coverage across much of the coasts and inland valleys, lasting later into the mornings and afternoons from Thursday through the weekend. Clearing at the coast may be very slow and ultimately limited in spots Friday and Saturday. Temperatures will also steadily cool again during this time, ultimately topping out nearly 5 to 10 degrees cooler than seasonal normals at the coast and 10 to 15 degrees cooler than normal in the valleys and mountains.

Sunday and Monday will see troughing weaken and eventually give way to ridging at 500mb, leading to a steady warming trend early next week. The marine layer will also become more shallow during this time, and steadily begin to clear out earlier each day. There will still be some degree of morning cloud cover across the coasts and valleys each day. Temperatures will rebound to near seasonal average by next Tuesday in the coasts and valleys, while the deserts begin to see triple digit highs reappear if not by Monday, then likely by Tuesday of next week.



AVIATION
212115Z
Coast/Valleys/Foothills
Widespread clear conditions with unlimited visibilities will last into this evening. Clearing will occur in most areas by 19Z, but with partial or intermittent clearing at some coastal areas.. Low clouds will push inland after 02Z and fill the coastal basin overnight into Wednesday. Bases would be 1500-2000 feet MSL with more vis restrictions across the Inland Empire and some coastal mountain foothill areas.

Mountains/Deserts...Clear skies with unrestricted VIS will continue today and tonight. W-NW winds increasing again later this afternoon and evening with peak wind gusts of 20-30 kts expected.

MARINE
No hazardous marine conditions are expected through Saturday.

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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San Clemente
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Tue -- 03:00 AM PDT     -0.20 feet Low Tide
Tue -- 04:23 AM PDT     Moonset
Tue -- 05:46 AM PDT     Sunrise
Tue -- 09:06 AM PDT     3.56 feet High Tide
Tue -- 02:11 PM PDT     1.46 feet Low Tide
Tue -- 06:22 PM PDT     Moonrise
Tue -- 07:48 PM PDT     Sunset
Tue -- 08:26 PM PDT     5.62 feet High Tide
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San Clemente, California, Tide feet

Newport Bay Entrance
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Tue -- 03:03 AM PDT     -0.14 feet Low Tide
Tue -- 04:24 AM PDT     Moonset
Tue -- 05:46 AM PDT     Sunrise
Tue -- 09:10 AM PDT     3.50 feet High Tide
Tue -- 02:04 PM PDT     1.62 feet Low Tide
Tue -- 06:24 PM PDT     Moonrise
Tue -- 07:50 PM PDT     Sunset
Tue -- 08:28 PM PDT     5.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Newport Bay Entrance, Corona del Mar, California, Tide feet

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