Sunrise 6:02 AM   Sunset 7:55 PM Moonrise 5:13 AM   Moonset 8:07 PM

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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 130 Am Pdt Wed May 8 2024
.small craft advisory in effect through late tonight - .
Today - NW winds 10 to 20 kt with gusts to 25 kt. Strongest western portion. Combined seas 9 to 11 ft dominant period 11 seconds. Tonight - NW winds 15 to 25 kt with local gusts to 30 kt. Strongest western portion. Combined seas 8 to 11 ft dominant period 12 seconds. Patchy fog after midnight. Thu - NW winds 10 to 15 kt, becoming variable 10 kt or less in the afternoon. Wind waves 2 ft or less. NW swell 6 to 8 ft at 11 seconds. Thu night - Winds variable 10 kt or less. Wind waves 2 ft or less. NW swell 4 to 6 ft at 11 seconds. Fri - Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 ft at 11 seconds. Fri night - NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 ft at 12 seconds. Patchy fog after midnight. Sat - NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft. Sun - NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 to 4 ft.

PZZ600 130 Am Pdt Wed May 8 2024
synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - .at 06z, or 11 pm pdt, a 1032 mb high was centered 400 nm west of medford and a 1001 mb low was near las vegas.

FXUS66 KLOX 081136 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 436 AM PDT Wed May 8 2024

SYNOPSIS
08/331 AM.

Gusty northeast winds will affect portions of Los Angeles and Ventura Counties this morning and some warming is expected today.
Otherwise, a quiet weather pattern is expected through early next week, with dry conditions. Night through morning low clouds should become more extensive late in the weekend and early next week. Mostly minor day to day changes in temperatures are expected through Sunday, with some cooling possible Monday and Tuesday.

.SHORT TERM (TDY-FRI)...08/418 AM.

Gusty northwest to north winds have dropped below advisory levels in most areas, so the Wind Advisory was allowed to expire. Low level flow has begun to turn northeasterly, and some gusty NE winds will develop in the mountains of Ventura and L.A. County, the northern/western valleys of L.A. County and VTU County, and coastal sections of VTU County. There could be a few advisory level gusts in the more wind-prone locations, but in general, expect winds to remain below advisory levels this m morning.

A pronounced eddy circulation has developed across the inner coastal waters. This has caused low clouds to spread northward form the L.A. County coast into the San Gabriel Valley and eastern portions of the San Fernando Valley, and clouds may become a bit more widespread in the San Fernando Valley by daybreak. Patchy low clouds and fog have also developed across southern portions of the Central Coast. Skies are expected to clear by mid morning.
While heights and thicknesses will be a bit lower across the region than they were on Tue, there should actually be some warming, especially west of the mountains, thank to offshore flow and warming at 950 mb.

The upper pattern featured a large upper low in the Great Plains extending southwestward into Utah early this morning. A strong rotating around the western periphery of this upper low is cause a new upper low to form over Utah late tonight and Thu, with troughing, and broad cyclonic flow aloft extending into the forecast area.

The high resolution models have really keyed in on a good eddy circulation tonight, with rather strong SE flow spreading thru the Santa Barbara Channel tonight. By Thu morning, this will evolve into a full blown southerly surge as southerly winds at the surface round Pt. Conception and spread northward into and off the Central Coast. Expect more widespread low clouds/fog in coastal areas and in the the lower valleys tonight/Thu morning.
The question is whether or not the eddy circulation tonight shifts westward too much, and actually pulls clouds off the coast of L.A. County. But in general, clouds should be more widespread tonight/Thu morning, with clearing expected in most areas by late Thu morning. There will be a fair amount of cooling at 950 mb due to the southeasterly flow, so expect several degrees of cooling in most areas west of the mountains. The exception may be across the Santa Ynez Valley and southern portions of the Central Coast, where southerly flow will downslope, producing some warming.

The upper low will drift southwestward into southern Nevada Thu night/Fri, but it will weaken, and heights will actually rise across the area. Expect night thru morning low clouds in coastal and some valley areas Thu night/Fri morning. Max temps should be up a few degrees in most areas Fri, at least away from the coast.

.LONG TERM (SAT-TUE)...08/431 AM.

The operational runs of both the GFS and the EC show the upper low reversing course and shifting eastward Fri night and Sat, with an amplifying ridge moving into the West Coast. At the surface, low level N-S gradients will increase across SLO and SBA Counties, possibly resulting in some gusty winds across southern SBA County during the evening hours Fri and Sat. Low clouds may be a bit less widespread Fri night/Sat due to the northerly flow. Also, the marine layer may become shallow enough for clouds to be confined to coastal areas. Max temps may edge upward slightly Sat. The upper ridge will flatten Sun, but heights will change little, so do not expect major changes, with night thru morning low clouds in coastal areas and locally in the valley Sat night/Sun. Max temps may come down a tad Sun as onshore flow increases slightly.

A weak upper low will move across the eastern Pacific Mon and over the region Tue. With lowering heights and increasing onshore flow, expect some cooling Mon and Tue, with more extensive night thru morning low clouds and fog extending farther inland.

AVIATION
08/1135Z.

At 1030Z at KLAX, the marine inversion was based at 1500 feet.
The top of the inversion was 2500 feet with a temperature of 15 degrees Celsius.

Overall, moderate to high confidence in 12Z TAF package. MVFR CIGs will impact KSMO/KLAX/KLGB thru 17Z with CAVU conditions elsewhere. For tonight, moderate confidence in return of MVFR CIGs for coastal/valley sites south of Point Conception, but low confidence in timing of CIG return (could be +/- 4 hours of current forecast). Offshore flow this morning may produce some light turbulence/LLWS across the mountains and foothills through 20Z.

KLAX...Moderate confidence in 12Z TAF. There is a 50% chance of MVFR CIGs 12Z-16Z. For tonight, high confidence in return of MVFR CIGs , but low confidence in timing (could be +/- 4 hours of current 09Z forecast). No significant easterly wind component is expected.

KBUR...Moderate confidence in 12Z TAF. Timing of dissipation of IFR CIGs could be as late as 17Z. For tonight, moderate confidence in return of MVFR CIGs , but low confidence in timing (could be +/- 4 hours of current 11Z forecast).

MARINE
08/104 AM.

For the Outer Waters, high confidence in the current forecast.
Today through tonight, a combination of Small Craft Advisory (SCA0 level winds and seas are expected. For Thursday through Sunday, winds and seas will remain below SCA levels.

For the Inner Waters north of Point Sal, moderate to high confidence in the current forecast. For today, there is a 30% chance of SCA level winds this afternoon and evening. For tonight through Sunday, high confidence in winds and seas remaining below SCA levels.

For the Inner Waters south of Point Conception, high confidence in the current forecast. Today through Sunday, winds and seas will remain below SCA levels. For tonight and Thursday morning, southeasterly wind gusts of 10 to 15 knots will be possible.

LOX WATCHES/WARNINGS/ADVISORIES
CA...High Surf Advisory in effect until 9 AM PDT Thursday for zones 340-346. (See LAXCFWLOX).
Beach Hazards Statement in effect through this evening for zone 354. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Thursday for zones 670-673-676. (See LAXMWWLOX).

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Avila
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Wed -- 04:54 AM PDT     -3.64 feet Low Tide
Wed -- 06:04 AM PDT     Sunrise
Wed -- 06:13 AM PDT     Moonrise
Wed -- 11:20 AM PDT     1.50 feet High Tide
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Wed -- 04:57 PM PDT     1.88 feet Low Tide
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