Sunrise 6:16 AM   Sunset 7:42 PM Moonrise 7:52 PM   Moonset 5:35 AM

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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 222 Pm Pdt Wed Apr 24 2024
.small craft advisory in effect from Thursday morning through Friday afternoon - ..gale watch in effect from Friday afternoon through late Friday night - .
Tonight - NW winds 10 kt in the evening, becoming 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds. Thu - NW winds 15 to 25 kt, becoming 20 to 25 kt in the afternoon. Combined seas 5 to 6 ft dominant period 8 seconds. Thu night - NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog after midnight. Fri - NW winds 15 to 20 kt with gusts to 25 kt, becoming 20 to 30 kt with gusts to 35 kt in the afternoon. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog in the morning. Fri night - NW winds 20 to 30 kt with gusts to 35 kt. Combined seas 8 to 9 ft dominant period 8 seconds. Patchy fog after midnight.Sat - NW winds 20 to 30 kt. Combined seas 9 to 10 ft dominant period 9 seconds. Patchy fog in the morning. Sat night - NW winds 25 to 30 kt in the evening, becoming 20 to 25 kt. Combined seas 8 to 10 ft dominant period 9 seconds. Patchy fog after midnight. Sun - NW winds 15 to 25 kt. Combined seas 7 to 9 ft. Patchy fog. Mon - NW winds 20 to 30 kt. Combined seas 8 to 11 ft.

PZZ600 222 Pm Pdt Wed Apr 24 2024
synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - .at 21z, or 2 pm pdt, a 1029 mb high was centered 800 nm W of san francisco. A 1001 mb low was centered just in eastern nevada.

FXUS66 KLOX 242130 AFDLOX

Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 230 PM PDT Wed Apr 24 2024

SYNOPSIS
24/108 PM.

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

.SHORT TERM (TDY-SAT)...24/142 PM.

A deep marine layer remains in place, however the inversion remains weak so clouds are generally focused across the inland valleys up against the south facing foothills as well as the Central Coast. Confidence remains low with regard to the sky coverage later tonight and Thursday as a trough approaches from the southwest. Satellite imagery shows some baroclinicity to it with even several lightning strikes near the low center earlier today. Models indicate significant weakening of the system as it continues it's trek towards either northern Baja or southern San Diego County so chances for any redevelopment are slim. Still, the low and mid level lifting associated with the low could generate some morning drizzle across southeast LA County. Many of the ensemble solutions suggest this as well.

Following the trough passage Thursday afternoon, increasing west to northwest winds are expected that will continue into Friday. In fact Friday has some of strongest winds this week with speeds up to 40 mph near and over the coast and up to 50 mph across the mountains and Antelope Valley. Expect there will be a need for wind advisories, possibly as early as late Thursday afternoon, but certainly by Friday.

Later Friday into early Saturday there is a 10-15% chance of light measurable rain across the interior mountains from far western LA County to Santa Barbara County as an inside slider trough brings some additional energy aloft as well a little bit of moisture.
Snow levels are at least 6000 feet so there's no threat of snow over the Grapevine, but there may be some light showers there and along the border with Kern County to around the Carrizo Plain in southeast SLO County. All that should end around sunrise Saturday leaving behind sunny skies in all areas with slightly warmer temperatures than Friday.

.LONG TERM (SUN-WED)...24/201 PM.

Sunday and Monday will be similarly nice days across the area with minimal stratus and warming temperatures. Monday will likely be the warmest day in this stretch with highs in the mid 80s in the valleys and upper 60s and 70s near the coast.

The rest of the week will be cooler with increasing low clouds and fog as well as onshore winds, particularly later in the week as another cold upper low drops out of the Gulf of Alaska.

AVIATION
24/1905Z.

At 1709Z at KLAX, the marine layer was 3800 feet deep. The top of the inversion was at 5700 feet with a temperature of 8 C.

Low to moderate confidence in TAFs. Cigs are expected to continue to clear or lift, until around 01Z Thu when they will start to redevelop. Cigs will generally be high MVFR to VFR, except lower in some mountain/foothill areas. Much uncertainty of cig arrivals and dissipation, and cigs may scatter and reform.

KLAX...Moderate confidence in TAF. There is a 20-30% chance of no cigs or cigs a category high than forecast during the period. No east wind component expected.

KBUR...Low to moderate confidence in TAF, due to uncertainty in arrival of cigs. There is a 20-30% chance of no cigs or cigs a category high than forecast during the period.

MARINE
24/229 PM.

In the Outer Waters, good confidence that winds will reach Small Craft Advisory (SCA) levels in the southern zone (PZZ676) this afternoon thru late tonight, with a 30% chance in the two northern zones, particularly around Point Conception. SCA conds are expected Thu morning thru Sun. There is a 50-70% chance of gales starting Thu evening thru Mon, with the highest chances for the southern zone (PZZ676).

For the Inner Waters N of Pt. Sal, moderate to high confidence in the forecast. SCA level winds are likely in the afternoon/evening hours Thu-Sun. There is a 50% chance of gales Fri afternoon into late Fri night.

In the Inner Waters S Pt Conception, moderate confidence. SCA conds are likely in the SBA Channel and the western portions south of Point Mugu during the afternoon/eve hours today and Thu. SCA conds are likely in the SBA Channel and portions of the southern inner waters during the afternoon and night hours Fri-Mon. There is a 50-60% chance of gales starting Fri morning into Sat.

LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...Small Craft Advisory in effect from 9 AM Thursday to 3 PM PDT Friday for zones 645-670. (See LAXMWWLOX).
Gale Watch in effect from Friday afternoon through late Friday night for zones 645-655-670. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 AM PDT Thursday for zones 650-655-676. (See LAXMWWLOX).
Gale Watch in effect from Friday morning through Saturday morning for zones 650-673. (See LAXMWWLOX).
Small Craft Advisory in effect from 9 AM Thursday to 9 AM PDT Friday for zone 673. (See LAXMWWLOX).
Gale Watch in effect from Thursday evening through Saturday morning for zone 676. (See LAXMWWLOX).

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