Sunrise 6:19 AM   Sunset 7:27 PM Moonrise 12:58 PM   Moonset 2:53 AM

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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 254 Am Pdt Tue Apr 16 2024
Today - NW to N winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 7 seconds and S 2 ft at 18 seconds. Tonight - W winds 10 to 15 kt with gusts to 20 kt in the evening, becoming se 5 to 10 kt. Wind waves 1 to 3 ft. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 17 seconds. Wed - SE winds 5 to 10 kt, becoming sw to W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 17 seconds. Wed night - W winds 10 to 15 kt in the evening, becoming se 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and S 3 ft at 16 seconds. Patchy fog after midnight. Thu - SE winds 5 to 10 kt, becoming sw to W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 15 seconds. Patchy fog in the morning. Thu night - W winds 10 to 15 kt in the evening, becoming 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 15 seconds. Patchy fog after midnight.Fri - W winds 5 to 10 kt early, becoming 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft. Patchy fog. Sat - W winds 10 to 15 kt. Wind waves 2 ft. Mixed swell W 2 to 3 ft and S 3 ft.

PZZ600 254 Am Pdt Tue Apr 16 2024
synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - .at 09z, or 2 am pdt, a 1032 mb high was located 450 nm west of crescent city, ca. A 1016 mb low was centered in arizona.

FXUS66 KLOX 161228 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 528 AM PDT Tue Apr 16 2024

SYNOPSIS
16/212 AM.

Dry and warmer conditions will prevail across the region this week and through the weekend. Low clouds and fog should also affect portions of the coast and valleys during the night and morning hours through the period.

.SHORT TERM (TDY-THU)...16/304 AM.

A week's worth of uneventful weather is in store for Srn CA.

A week ridge will nose over the southern half of the state today and hgts will rise about 580 dam. Sfc high pressure is building into the north and this will generate some gusty winds through and below the N/S oriented canyons. There is no upper level support so do not expect any of the gusts to reach advisory levels. The offshore flow will keep almost all of the low clouds away with the only concentrated low clouds in the Paso Robles area, otherwise just patchy low clouds across the Central Coast. Max temps will be today's most significant talking point. Max temps will rise 6 to 12 locally 15 degrees today the result of a combination of April sunshine, offshore flow, and rising hgts. Most max temps will end up 3 to 6 degrees above normal. The coasts will rise into the 70s while there will be plenty of low to mid 80s in the vlys.

The offshore flow will relax tonight and the low cloud pattern will start to reform. Low clouds will likely reform across the Central Coast and the Salinas River vly.

The skies will be sunny on Wednesday save for the low clouds which will not last past mid morning. The offshore will be weaker and this will allow for an earlier seabreeze which will bring 2 to 4 degrees of cooling to the csts/vlys. Hgts will rise another 2 or 3 dam as the ridge peaks and this will lead to another 3 to 6 degrees of warming across the mtns and far interior.

Wednesday night and Thursday the ridge will be pushed to the east by a weak trof. The trof will bring a mass of mid and high level clouds - enough to make the day a mostly cloudy one. The lift from the low along with a sharp increase in onshore flow to the east will bring low clouds to the coasts and most of the vlys. The afternoon onshore push to the east is fcst to be near 7 mb and its likely that the low clouds will not clear many coastal areas.
Look for 4 to 8 degrees of cooling across the board - this will bring the csts and vlys max temps down below normals. The mtns and the far interior, however, will remain above normal. Max temps across the csts and vlys will end up in the mid 60s to the mid 70s.

.LONG TERM (FRI-MON)...16/322 AM.

GFS and EC along with their respective ensembles are in good agreement for the extended period.

Weak troffing will persist over the area on Friday. There will be another round of morning low clouds across the coasts and most of the vlys. There will be weak onshore flow in the afternoon and this will allow for better clearing. The mid and high clouds will also be past the area so there will be much more sunshine. The lower hgts will serve to cool the area but the sunnier skies and weaker onshore flow will counteract this cooling. The end result is that there will be hodge-podge of warming and cooling across the forecast area.

Temps on Fri are forecast to be a few degrees below normal for the coast and vlys with above normal temps elsewhere. There should be a warming trend Sat and Sun, with Sun being the warmest day during the extended period. With the marine layer expected to deepen by Mon, temps will cool back to several degrees below normal for the coast and vlys but remain above normal for interior areas. When all is said and done, however, most max temps will come in within 2 degrees of Thursday's values.

Weak ridging will build in over the weekend and the onshore flow will relax even becoming offshore from the north on Sunday. The amount of morning low clouds will subside and Sunday may well end up cloud free. Max temps will rise 2 to 4 degrees each day. By Sunday cst/vly max temps will end up 2 to 4 degrees above normal while the mtns and far interior will be 5 to 10 degree warmer than normal. Almost all of the vlys will see temps in the 80s.

The ridge weakens on Monday. The onshore flow will also increase.
Look for an increase in the morning low clouds and a 2 to 4 degree cooling trend across the entire area.

AVIATION
16/1224Z.

At 12Z, there was no marine inversion at KLAX.

There were patchy low clouds in the Salinas Valley, southern Central Coast and the Santa Ynez Valley. Conds were mostly LIFR to VLIFR in these areas, and skies should clear by mid morning.
Some patchy low clouds and fog off the coast of L.A./VTU Counties may affect immediate beach areas briefly thru mid morning, with IFR to LIFR conds. Otherwise, VFR conds are expected thru early tonight. Stratus with LIFR to VLIFR conds may affect the Central Coast, Santa Ynez Valley and the Salinas Valley late tonight.

KLAX...Moderate confidence in the 12Z TAF. There is a 20-30% chance of IFR cigs thru 17Z, and again 10Z-16Z Wed. Any east winds should remain less than 7 knots.

KBUR...High confidence in the 12Z TAF with VFR conds thru the pd.

MARINE
16/524 AM.

Fairly high confidence in the current forecast.

In the outer waters, Small Craft Advisory (SCA) level winds and steep seas will continue thru late tonight, then SCA conds are not expected Wed-Thu night. SCA level NW winds are expected Fri-Sat.

In the inner Waters N of Pt. Sal, SCA level NW winds are expected this afternoon/evening. SCA conds are not expected late tonight-Thu night. There is a 30% chance of SCA level NW winds Fri, then SCA level winds are likely Sat.

In the Inner Waters S of Pt. Conception, there is a 40% chance of SCA level W-NW winds in the western SBA Channel this afternoon and evening, and again Sat, with a 20% chance in NW portions of the southern inner waters. Otherwise, SCA conds are not expected thru Sat.

BEACHES
16/528 AM.

A long-period southerly swell will push into the coastal waters tonight thru Wed night, and may bring low end high surf conds to S facing beaches. There is a 30% chance of high surf of 4-7 ft on S facing beaches of L.A. County Wed/Wed night.

LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...Small Craft Advisory in effect from 3 PM this afternoon to 9 PM PDT this evening for zone 645. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 AM PDT Wednesday for zones 670-673-676. (See LAXMWWLOX).

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El Segundo
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Tue -- 02:53 AM PDT     Moonset
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Tue -- 06:20 AM PDT     Sunrise
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