Sunrise 5:52 AM   Sunset 8:04 PM Moonrise 5:38 PM   Moonset 3:32 AM

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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 337 Am Pdt Tue May 21 2024
Today - NW winds 5 to 10 kt, becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 5 to 7 ft at 11 seconds.Tonight - NW winds 10 to 20 kt in the evening, becoming 5 to 10 kt. Wind waves 1 to 3 ft. NW swell 5 to 6 ft at 10 seconds. Patchy fog. Wed - NW winds 5 to 10 kt, becoming 10 to 20 kt with local gusts to 25 kt. Wind waves 1 ft or less, becoming 2 to 4 ft in the afternoon. NW swell 5 to 7 ft at 10 seconds. Patchy fog in the morning. Wed night - NW winds 10 to 20 kt with local gusts to 25 kt in the evening, becoming 5 to 10 kt. Wind waves 2 to 4 ft in the evening, becoming 1 ft. NW swell 5 to 6 ft at 9 seconds. Patchy fog after midnight.Thu - NW winds 5 to 10 kt, becoming 15 to 25 kt with local gusts to 30 kt in the afternoon. Combined seas 5 to 7 ft dominant period 10 seconds. Patchy fog in the morning. Thu night - NW winds 15 to 25 kt in the evening, becoming 10 to 15 kt. Combined seas 6 to 7 ft dominant period 10 seconds, subsiding to 4 to 6 ft dominant period 9 seconds after midnight. Fri - NW winds 10 to 15 kt. Wind waves 2 ft. NW swell 3 to 5 ft.Sat - NW winds 10 to 15 kt early, becoming 15 to 25 kt. Combined seas 4 to 6 ft. Patchy fog.

PZZ600 337 Am Pdt Tue May 21 2024
synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - .at 10z, or 3 am pdt, a 1034 mb surface high was centered 900 nm west of eureka. A 1003 mb thermal low was centered over southern nevada.

FXUS66 KLOX 211018 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 318 AM PDT Tue May 21 2024

SYNOPSIS
21/231 AM.

Low clouds will continue through the morning with better clearing this afternoon. More sunshine with slight warming is expected today and Wednesday as onshore flow weakens. Then cooler with increasing marine layer clouds again the latter half of next week.

.SHORT TERM (TDY-THU)...21/302 AM.

Broad scale pos tilt troffing will cover the state and most of the western CONUS through the next three days. Good offshore trends will make today the day with the weakest onshore flow. Onshore flow will increase both Wed and Thu esp in the W to E direction.

Today will likely be the sunniest day due to the weaker onshore flow and a very weak marine layer capping inversion. Decent N to S flow across SBA county will keep the south coast cloud free. It is likely that most of the area will see sunshine in the afternoon and the evening will also likely be clear for most of the air.
Rising hgts, extra sunshine and weaker seabreezes will all add up to a noticeably warmer day (4 to 8 locally 10 degrees). Despite this warming max temps will come in 4 to 8 degrees blo normal.

Clouds will be slower to form tonight but by dawn most of the coasts and vlys should be covered with stratus. Clearing will likely be a little slower but almost all of the area will see sunshine in the afternoon. Higher hgts will bring continued warming to the interior but the stronger seabreeze will cool the coasts and to a lesser degree the vlys.

The troffing will be a little more vigorous on Thursday and the onshore flow will increase to near 9 mb w to e. Look for the return of a deep vly penetrating marine layer stratus field with slow to no clearing. Max temps will fall 3 to 6 degrees and will end up mostly in the mid 60s to lower 70s across the coasts and vlys. The interior will end up upper 70s and to mid 80s.

.LONG TERM (FRI-MON)...21/317 AM.

For the extended, models and their respective ensembles are in decent agreement through the period. The broad upper level trof will continue over the area Fri/Sat. On Sun/Mon weak ridge will move into the state.

On Fri/Sat look for a May Grey pattern with total marine layer stratus coverage over the csts/vly and xtnding into the mtn passes. Clearing will be slow across the vlys and interior coastal sections while most of the coastlines will remain mired in the low clouds. The moderate to strong onshore gradients will likely produce some advisory level westerly winds across interior sections each afternoon and early evening, especially in the Antelope Valley foothills.

For Sunday/Monday, increasing heights will smoosh the marine layer down which will decrease the inland penetration. Also with rising thicknesses and less marine influence, a warming trend can be expected for all areas except right at the beaches.

AVIATION
21/0713Z.

At 0505Z at KLAX, the marine layer was 3200 ft deep. The top of the inversion was at 4800 feet with a temperature of 13 C.

Good confidence in desert TAFs.

Low confidence in TAF for KSBA with a 40 percent chc of MVFR cigs 11Z-18Z.

Moderate confidence in TAFs. VFR transitions could be off by +/- 90 minutes. Lower confidence in return of low clouds after 22/03Z with near equal chances of an earlier or much later arrival time.

KLAX...Moderate confidence in TAF. VFR transition could occur any time between 18Z and 21Z. Low confidence in timing of return of low clouds Tuesday evening with a 30 percent chc of an arrival time 10Z-11Z and a 20 percent chc of 07Z-08Z. Good confidence that any east wind component will be 5 knots or less.

KBUR...Moderate confidence in TAF. VFR transition may be as late as 20Z. There is a 30 percent chc that cigs will not drop below OVC022. There is a 25 percent chc of no low clouds Tuesday evening.

MARINE
20/932 PM.

High confidence in the current forecast. Widespread Small Craft Advisory (SCA) conditions (winds and seas) will continue over the offshore waters from the Central Coast to San Nicolas Island through at least late Tuesday night and likely through at least Friday. There will likely be brief and slight lulls during the late night and morning hours. There is a 30-50 percent chance of SCA winds for the western Santa Barbara Channel and into the nearshore waters along the Central Coast each afternoon and evening. SCA conditions are unlikely elsewhere.

A long period south to southwest swell will diminish late Tuesday night and into Wednesday. This will create larger than usual breaking waves nearshore as well as some stronger currents near most harbor entrances.

LOX WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement in effect through Wednesday afternoon for zones 87-362-366. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zones 670-673-676. (See LAXMWWLOX).

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Avila
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Tue -- 03:49 AM PDT     -2.63 feet Low Tide
Tue -- 04:33 AM PDT     Moonset
Tue -- 05:54 AM PDT     Sunrise
Tue -- 10:10 AM PDT     0.71 feet High Tide
Tue -- 02:42 PM PDT     -0.58 feet Low Tide
Tue -- 06:39 PM PDT     Moonrise
Tue -- 08:05 PM PDT     Sunset
Tue -- 08:59 PM PDT     2.84 feet High Tide
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Avila, California, Tide feet

Port San Luis Wharf
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Tue -- 03:56 AM PDT     -0.12 feet Low Tide
Tue -- 04:33 AM PDT     Moonset
Tue -- 05:54 AM PDT     Sunrise
Tue -- 10:06 AM PDT     3.53 feet High Tide
Tue -- 03:03 PM PDT     1.69 feet Low Tide
Tue -- 06:39 PM PDT     Moonrise
Tue -- 08:05 PM PDT     Sunset
Tue -- 09:18 PM PDT     5.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Port San Luis Wharf, California, Tide feet

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