Sunrise 6:07 AM   Sunset 7:33 PM Moonrise 9:40 PM   Moonset 6:55 AM

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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 340 Am Pdt Thu Apr 25 2024
.small craft advisory in effect from 3 pm pdt this afternoon through late tonight - ..gale watch in effect from Friday afternoon through late Friday night - .
Today - Western portion, W to nw winds 10 to 20 kt, becoming 15 to 25 kt with gusts to 30 kt in the afternoon. Eastern portion, W winds 5 to 10 kt, becoming 10 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 3 to 5 ft dominant period 8 seconds.Tonight - Western portion, W to nw winds 20 to 30 kt, becoming 15 to 25 kt late. Eastern portion, W winds 15 to 25 kt, becoming 10 to 20 kt late. Combined seas 5 to 7 ft dominant period 7 seconds.Fri - Western portion, W to nw winds 15 to 25 kt, becoming 25 to 35 kt with possible gusts to 40 kt in the afternoon. Eastern portion, W winds 10 to 20 kt, becoming 20 to 30 kt with possible gusts to 35 kt in the afternoon. Combined seas 7 to 9 ft dominant period 8 seconds, building to 8 to 11 ft dominant period 8 seconds in the afternoon. Fri night - Western portion, W to nw winds 25 to 35 kt with possible gusts to 40 kt, becoming 20 to 30 kt late. Eastern portion, W winds 20 to 30 kt with possible gusts to 35 kt, becoming 10 to 20 kt after midnight. Combined seas 8 to 11 ft dominant period 9 seconds.Sat - Western portion, W to nw winds 15 to 25 kt becoming 20 to 30 kt in the afternoon. Eastern portion, W winds 10 to 15 kt, becoming 15 to 25 kt in the afternoon. Combined seas 7 to 10 ft dominant period 9 seconds.Sat night - Western portion, W to nw winds 20 to 30 kt becoming 15 to 25 kt after midnight. Eastern portion, W winds 15 to 25 kt becoming 10 to 15 kt after midnight. Combined seas 7 to 9 ft dominant period 9 seconds. Sun - W winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft. Mon - W winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft.

PZZ600 340 Am Pdt Thu Apr 25 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 1028 mb high was centered 800 nm west of point conception. A 1005 mb low was centered in southern nevada. Strong to gale force W to nw winds will affect much of the waters into the weekend.

FXUS66 KLOX 251029 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 329 AM PDT Thu Apr 25 2024

SYNOPSIS
25/240 AM.

Strong onshore flow and a deep marine layer will keep temperatures much cooler than normal across much of Southwest California through Friday. Warmer weather is expected by the weekend into early next week.

.SHORT TERM (TDY-SAT)...25/317 AM.

The marine layer is 3300 ft deep. There is strong onshore flow to the east and weak but increasing onshore flow to the north. Marine layer stratus cover most of the area save for the Antelope Vly and the SBA south coast (due to N to S offshore flow). A weak trof passed over the area last evening and now brisk NW flow is moving into and over the state. The marine layer is so deep and the capping inversion so weak that reverse clearing is likely today.
N to NW flow will be increasing through the day and its possible that this will create a little better clearing than fcst. NW to W flow will bring near advisory wind gusts to the mtns and the western Antelope Vly. Higher hgts will bring some warming to the Central Coast, while north flow will bring noticeable warming to the SBA south coast. Residual cool air and the strong onshore push will team up to cool most of LA and VTA county. It will be another cool day with max temps 6 to 12 degrees blo normal.

The north winds will increase today and advisory levels gusts will develop in the early evening across the SW portion of SBA county where a wind advisory is in effect from 6pm to 6am. Strong winds will develop more slowly across the mtns and Antelope Vly and wind advisories will likely be issued later in the day these areas. The north flow will also bring upslope clouds and a slight chc of showers to north slopes near the Kern County line. Low confidence in the stratus forecast which may well be mixed out. Right now betting on the the north winds to clear out most of VTA county and the SBA south coast with cloudy conds across LA county and the Central Coast.

Friday will be a breezy day as the NW flow reaches its maximum.
These winds will scour out the low clouds and will be a sunny day.
Advisory level gusts are likely for the Santa Ynez Mountains, VTA mtns, northern I-5 corridor, and Antelope Valley. Look for 3 to 6 degrees of warming which will only make a small dent in the below normal max temps.

A little inside slider will move down the CA/NV border Friday night and will again bring a slight chc of N slopes showers to the N slopes near the Kern county line. It will also reinforce the N winds and advisory level northerly winds will likely continue through dawn in the mtns and Antelope Vly with the strongest winds focused through the I-5 corridor.

Saturday will see sunny skies and decreasing winds. 3 to 6 degrees of warming will result from the offshore flow from the north, the lack of marine layer, sunny skies and rising hgts.

.LONG TERM (SUN-WED)...25/326 AM.

Sunday and Monday will be very nice days with plenty of sunshine and warming temps. All brought about by a weak ridge moving overhead, weaker onshore flow to the east and continued offshore flow from the north. Monday will likely be the warmest day of the next 7 with highs in the 70s and lower 80s in the valleys and upper 60s and 70s near the coast. These max temps will end up a degree or 2 either side of normals.

Tuesday may have similar temps to Monday or it will cool some. It all depends on how quickly the ridge breaks down and onshore flow increases.

Troffing and increased onshore flow and a likely return of coastal low clouds will ensure that Wednesday ends up about 4 degrees cooler than Tuesday.

AVIATION
25/0645Z.

At 0505Z at KLAX, the marine layer was 5600 feet deep. The top of the inversion was at 6700 feet with a temperature of 6 C.

High confidence in desert TAFs. Moderate confidence in remaining TAFs. KSBA has a 30 percent chc of bkn025-035 cigs 11Z-18Z, otherwise cigs will vary between BKN025 bkn035 through late morning. There is a a30 percent chc that sites with BKN conds in the TAF in the afternoon will see SCT conds.

KLAX...Moderate confidence in TAF. Cigs may dip as low as BKN025 but will likely (60 percent chc) remain between 035 and 045. There is a 30 percent chc of SCT conds 20Z-03Z. No east wind component is expected.

KBUR...Moderate confidence in TAF. Cigs will vary between BKN025 and BKN035 through 18Z. There is a 20 percent chc of SCT conds 20Z-03Z.

MARINE
24/1005 PM.

In the Outer Waters, current Small Craft Advisories (SCA) remain on track for tonight. 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).
Lower confidence in gales for the waters north of Point Sal on Thursday afternoon/evening.

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, and a 40-60% chance of gales Saturday night.

In the Inner Waters S Pt Conception, moderate confidence. Current Small Craft Advisories (SCA) remain on track for tonight, especially in the Santa Barbara Channel where winds are consistently gusting from 23-27 kts. SCA conds are likely in the SBA Channel and the western portions south of Point Mugu during the afternoon/eve hours Thursday. Strong SCA with possible gales appear likely Friday and there is a 50-60% chance of gales starting Fri morning into Sat. Lower confidence in winds over the weekend, as winds could shift more northerly limiting the SCA level and stronger winds to western portions of the Santa Barbara Channel.

LOX WATCHES/WARNINGS/ADVISORIES
CA...Wind Advisory in effect from 6 PM this evening to 6 AM PDT Friday for zones 349-351. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect from 9 AM this morning to 3 PM PDT Friday for zones 645-670. (See LAXMWWLOX).
Gale Watch in effect from Friday afternoon through Friday evening for zones 645-670. (See LAXMWWLOX).
Small Craft Advisory in effect from noon today to 9 AM PDT Friday for zone 650. (See LAXMWWLOX).
Gale Watch in effect from Friday morning through late Friday night for zones 650-673-676. (See LAXMWWLOX).
Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Friday for zone 655. (See LAXMWWLOX).
Gale Watch in effect from Friday afternoon through late Friday night for zone 655. (See LAXMWWLOX).
Small Craft Advisory in effect from 9 AM this morning to 9 AM PDT Friday for zones 673-676. (See LAXMWWLOX).

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