Sunrise 6:09 AM   Sunset 7:31 PM Moonrise 7:35 PM   Moonset 5:55 AM

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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 214 Pm Pdt Tue Apr 23 2024
Tonight - W winds 10 to 15 kt. Wind waves 2 ft or less. S swell 2 ft at 15 seconds. Patchy fog and drizzle after midnight.Wed - W winds 10 to 20 kt. Wind waves 2 to 3 ft. S swell 2 ft at 15 seconds. Patchy fog and drizzle in the morning.Wed night - W winds 10 to 20 kt. Wind waves 2 to 3 ft. S swell 2 ft at 15 seconds. Patchy fog and drizzle after midnight. Thu - W winds 10 to 20 kt with gusts to 25 kt. Combined seas 3 to 5 ft dominant period 8 seconds. Patchy fog and drizzle in the morning.Thu night - Western portion, W winds 15 to 25 kt. Elsewhere, W winds 10 to 20 kt becoming variable 10 kt or less after midnight. Combined seas 4 to 6 ft dominant period 8 seconds. Patchy fog and drizzle after midnight.Fri - W winds 15 to 25 kt, becoming 20 to 30 kt with gusts to 35 kt in the afternoon. Combined seas 4 to 6 ft, building to 6 to 8 ft in the afternoon. Patchy fog and drizzle in the morning. Fri night - Western portion, W winds 25 to 35 kt with gusts to 40 kt becoming nw 20 to 30 kt with gusts to 35 kt late. Elsewhere, W winds 20 to 30 kt becoming nw 10 to 20 kt after midnight. Combined seas 7 to 10 ft. Sat - W winds 15 to 25 kt. Combined seas 5 to 7 ft. Sun - W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 6 ft.

PZZ600 214 Pm Pdt Tue Apr 23 2024
synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - .at 20z, or 1 pm pdt, a 1020 mb high pressure was 650 nm sw of point conception, and a 1001 mb low was over central nevada.

FXUS66 KLOX 232138 AFDLOX

Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 238 PM PDT Tue Apr 23 2024

SYNOPSIS
23/122 PM.

Strong onshore flow and a deep marine layer will maintain much cooler than normal temperatures through at least Friday. Areas of night and morning fog and drizzle are expected across the coast, valley, and foothill areas with only partial afternoon clearing.
Warmer weather is expected by the weekend into early next week.

.SHORT TERM (TDY-FRI)...23/147 PM.

No significant changes to the forecast today as a series of low pressure systems move through California through Friday. Cooling aloft associated with these upper lows has deepened the marine layer to around 5000 feet while onshore flow to the east is approaching 9mb this afternoon. Today saw our first day of reverse clearing of the marine layer and this may be the case again Wednesday as well. With a little more sunshine today many coastal area temperatures were a couple degrees warmer than the previous couple days, but still well below normal. Some breezy winds have developed through the I14 corridor and into the Antelope Valley with that strong onshore flow but with the exception of the usual Lake Palmdale station winds are below 40 mph and expected to remain that way through early Thursday.

There is low confidence in how the marine layer will behave Wednesday now that the it's so deep. The most likely outcome is another day very similar to today, with (not so) low clouds reforming overnight in most areas then another reverse clearing pattern tomorrow. Most of the high res forecast models favor this scenario along with some pockets of drizzle, especially near the south facing foothills. However, the next upper low will be quickly approaching the area Wednesday with an arrival expected Wednesday night into Thursday. So some additional cooling aloft is expected that could either reinforce the marine layer or potentially weaken it enough to where it clears out more completely in the afternoon. In any case, temperatures will remain well below normal with some breezy but again sub-advisory level winds across interior areas.

With the arrival of the upper low Wednesday night into Thursday morning, chances for more widespread drizzle or light rain increase. But with northwest flow following the trough passage Thursday afternoon that should help generate better clearing.
Increasing west to northwest winds expected in the afternoon and evening with wind advisories possible for some coastal areas and interior areas as well.

Yet another trough quickly follows for Friday, though models have been tracking this one more inland. Temperatures will remain on the cool side with some gusty west to northwest winds but minimal chances for precip, except possibly across the northern mountains and interior SLO County. Still low confidence in the low cloud coverage but the most likely outcome is for less clouds across coast and valleys. Temperatures will remain below normal but should be 3-6 degrees warmer than Thursday.

.LONG TERM (SAT-TUE)...23/153 PM.

The warming trend that started Friday is expected to continue into early next week with weakening onshore flow and minimal, if any, marine layer stratus. Temperatures should be back to normal levels over the weekend and sneaking a few degrees above normal by Monday. Some cooling then expected Tuesday that will likely continue through the rest of next week as yet another cold upper low drops out of the Pac NW.

AVIATION
23/1829Z.

At 1744Z at KLAX, the marine inversion was based at 3700 feet.
The top of the inversion was 4500 feet with a temperature of 11 C.

Low to moderate confidence for coastal/valley TAFs and high confidence for desert TAFs. Lower confidence for coastal/valley sites due to uncertainties in timing of flight category changes.
There is 30% chance of no afternoon clearing at sites with a clearing forecast.

KLAX...Moderate confidence, due to uncertainty in timing of cig arrival and dissipation. No significant easterly wind component is expected.

KBUR...Moderate confidence, due to uncertainty in timing of cig arrival and dissipation.

MARINE
23/236 PM.

For the Outer Waters, moderate to high confidence in current forecast. Today through Wednesday night, high confidence in winds and seas remaining below Small Craft Advisory (SCA) levels. For Thursday through Sunday, high confidence in combination of SCA level winds and seas. Across the two southern outer water zones (PZZ673/676), there is a 50-60% chance of Gale force winds Thursday and Friday afternoon/night.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Today through Wednesday night, high confidence in winds and seas remaining below SCA levels.
For Thursday through Friday, there is a 60-80% chance of SCA level winds, especially in the afternoon and evening hours. For Saturday and Sunday, there is a 40-50% chance of SCA level winds, especially in the afternoon and evening hours.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. Today through Wednesday morning, high confidence in winds and seas remaining below SCA levels, expect for a 60% chance of SCA level winds for the SBA Channel this evening/night. Wednesday afternoon/night, there is a 60-80% chance of SCA level winds for all the southern inner waters. Winds will pick back up Thursday morning for the SBA channel (with a 20-30% chance of Gale force winds on Thursday), and reaching the waters south of Point Mugu Thursday afternoon. SCA wind or seas will last much of the time Thursday through Saturday.

LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...Small Craft Advisory in effect from 9 PM this evening to 9 AM PDT Wednesday for zone 650. (See LAXMWWLOX).

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Los Patos (highway bridge)
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Tue -- 05:02 AM PDT     -0.05 feet Low Tide
Tue -- 05:55 AM PDT     Moonset
Tue -- 06:11 AM PDT     Sunrise
Tue -- 10:58 AM PDT     3.32 feet High Tide
Tue -- 04:33 PM PDT     0.75 feet Low Tide
Tue -- 04:51 PM PDT     Full Moon
Tue -- 07:29 PM PDT     Sunset
Tue -- 07:34 PM PDT     Moonrise
Tue -- 10:32 PM PDT     4.53 feet High Tide
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Los Patos (highway bridge), California, Tide feet

Long Beach
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Tue -- 03:55 AM PDT     -0.08 feet Low Tide
Tue -- 05:56 AM PDT     Moonset
Tue -- 06:11 AM PDT     Sunrise
Tue -- 10:02 AM PDT     3.84 feet High Tide
Tue -- 03:26 PM PDT     1.20 feet Low Tide
Tue -- 04:51 PM PDT     Full Moon
Tue -- 07:30 PM PDT     Sunset
Tue -- 07:35 PM PDT     Moonrise
Tue -- 09:36 PM PDT     5.24 feet High Tide
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Long Beach, Inner Harbor, California, Tide feet

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