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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 104 Am Pst Fri Dec 1 2023
Today..Wind northwest 10 to 20 knots...becoming 10 to 15 knots this afternoon. Wind waves 3 to 4 feet this morning...becoming 2 feet or less. SWell west 5 to 6 feet at 9 seconds.
Tonight..Wind west to 10 knots...becoming southeast 10 knots after midnight. Wind waves around 2 feet or less. SWell west 4 to 6 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 9 seconds.
Saturday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 to 3 feet at 8 seconds.
Sunday..Wind variable less than 10 knots...becoming northwest 10 knots in the afternoon. Wind waves around 2 feet or less. SWell west 2 feet at 10 seconds.
Sunday night..Wind north 10 knots. Wind waves around 2 feet or less. SWell northwest 2 feet.
Monday..Wind variable less than 10 knots...becoming northwest 10 knots in the afternoon. Wind waves around 2 feet or less. SWell west 2 feet.
Monday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 feet.
Tuesday..Wind variable less than 10 knots...becoming northwest 10 knots in the afternoon. Wind waves around 2 feet or less. SWell west 2 feet.
Tuesday night..Wind variable less than 10 knots. Wind waves around 2 feet or less. SWell west 2 feet.

PZZ700 104 Am Pst Fri Dec 1 2023
Synopsis for the far southern california coast.. At 1 pm, a 1024 mb high was 1000 nm west of san diego, and a 1007 mb low was over southern utah. Gusty west to northwest winds to 25 knots will prevail over the coastal waters today, and a small craft advisory is in effect for the outer coastal waters through early this afternoon. Steep seas of 7 to 9 ft with an 8 to 9 second period will accompany the wind. The onshore flow will weaken gradually through Saturday, with weak mostly north to northwest flow early next week.

FXUS66 KSGX 011016 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 216 AM PST Fri Dec 1 2023

SYNOPSIS
Any lingering showers and clouds along and west of the mountains this morning will diminish by midday, 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...

At 2 AM PST...isolated showers were still popping up and drifting slowly SE, west of the mountains, but any accumulations over the past hour have been less than one-tenth inch. Based on the latest HRRR runs, we are likely to see more of this isolated activity until around sunrise, and mostly near the coast slopes of the mountains.
The latest rainfall totals are headlined on our webpage. Westerly winds are rather gusty on the coastal slopes and near the passes, peaking near 50 MPH at Whitewater in the San Gorgonio Pass. These winds will continue early this morning, then drop off after sunrise.

The clouds near the coastal slopes of the peninsular mts will dissipate later this morning, leaving fair to partly cloudy skies and another cool day under NW flow aloft. A weak onshore gradient will prevail through Sunday, except for weak offshore drainage winds overnight, so the airmass over the region will remain modified by marine air, even though a low cloud deck is not likely to form. That moisture in the air will will keep the diurnal temperature swings somewhat in check, but widespread lows in the 40s are still a good bet.

A warming trend will begin today, becoming more noticeable Sun/Mon, as daytime highs rise above average. The warming will continue as heights and thickness rise over SW CA under a building ridge, peaking midweek with highs some 10-15F above average most areas.
This will be accompanied by weak offshore flow and fair skies with just a few high clouds at times.

Late in the week, the ridge will deflate, as a strong shortwave trough moves inland off the Pacific into northern CA. This will initiate a cooling trend as onshore flow once again begins to dominate. Moving through next weekend though, the forecast confidence drops considerably, as we begin to see a large divergence in ensemble outcomes. It looks like a rex block is trying to set up along the West Coast, which may be causing the large spread. The ECMWF control runs have been the most amplified with this outcome, even developing widespread precipitation for next weekend. This outcome is embedded in a cluster of solutions that make up 25% or less of the total, so while not likely at this time, that could change in subsequent runs, tilting us into more impactful weather then. For now, the forecast runs through Friday, and is dry.



AVIATION
010900Z
Coast/Valleys
ISO/SCT SHRA will continue through 15Z mainly in San Diego County with brief VIS reductions to 3-5 miles.
Areas of BKN stratus with bases 2200-4500 ft MSL and tops to 8000 ft MSL with higher terrain obscured at times will very gradually decrease 11Z-16Z with mostly SCT conditions after 16Z and mostly clear skies tonight/Sat morning.

Mountains/Deserts...Areas of west winds with gusts 25-35 kt will mostly diminish by 15Z. Areas of terrain, mainly west mountain slopes, will be obscured in clouds/FG through 15Z. Otherwise, mostly clear skies will prevail through Sat morning.

MARINE
Northwest wind gusts near 25 knots over the outer coastal waters and a northwest swell of 6 to 9 ft with an 8 second period will continue through this afternoon. This will produce steep, choppy seas and hazardous boating conditions for small craft.

SGX WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 1 PM Friday for Waters from San Mateo Point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.

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San Clemente
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Fri -- 12:33 AM PST     3.27 feet High Tide
Fri -- 04:10 AM PST     2.77 feet Low Tide
Fri -- 06:36 AM PST     Sunrise
Fri -- 10:30 AM PST     5.31 feet High Tide
Fri -- 10:38 AM PST     Moonset
Fri -- 04:42 PM PST     Sunset
Fri -- 06:25 PM PST     -0.09 feet Low Tide
Fri -- 08:41 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

San Clemente, California, Tide feet

Newport Bay Entrance
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Fri -- 12:54 AM PST     3.39 feet High Tide
Fri -- 04:14 AM PST     3.00 feet Low Tide
Fri -- 06:37 AM PST     Sunrise
Fri -- 10:38 AM PST     5.28 feet High Tide
Fri -- 10:40 AM PST     Moonset
Fri -- 04:43 PM PST     Sunset
Fri -- 06:31 PM PST     -0.01 feet Low Tide
Fri -- 08:42 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

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

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