Sunday, December15, 2019
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Marine Weather and Tides
Seal Beach, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:48AMSunset 4:46PM Sunday December 15, 2019 3:57 PM PST (23:57 UTC) Moonrise 9:32PMMoonset 10:59AM Illumination 82% Phase: Waning Gibbous; Moon at 19 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 210 Pm Pst Sun Dec 15 2019
.small craft advisory in effect until 9 pm pst this evening...
Tonight..NW winds 15 to 25 kt, becoming ne 10 to 15 kt after midnight. Combined seas 5 to 6 ft dominant period 9 seconds, subsiding to 3 to 4 ft dominant period 9 seconds after midnight.
Mon..From point mugu to santa Monica and S of palos verdes, ne winds 15 to 20 kt becoming 10 to 15 kt in the afternoon. Elsewhere, ne winds 5 to 10 kt becoming se in the afternoon. Wind waves 2 to 4 ft. W swell 2 to 4 ft at 13 seconds.
Mon night..NE winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. W swell 2 to 3 ft at 13 seconds.
Tue..NE winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. W swell 2 ft at 12 seconds.
Tue night..E winds 10 to 20 kt, becoming 5 to 10 kt after midnight. Wind waves 2 to 3 ft. W swell 2 ft at 15 seconds.
Wed..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 15 seconds. Slight chance of rain.
Wed night..NW winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 4 ft at 16 seconds.
Thu..N winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
PZZ600 210 Pm Pst Sun Dec 15 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z or 1 pm pst, a 1003 mb low was in eastern new mexico and a 1026 mb surface high was located about 600 nm west of point conception. Strong west to northwest flow across coastal waters will continue through today.


7 Day Forecast for Marine Location Near Seal Beach, CA
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location: 33.74, -118.12     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 152205 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 205 PM PST Sun Dec 15 2019

SYNOPSIS. 15/116 PM.

Moderate northerly winds will continue across portions of the region through tonight then strong and gusty northeast winds will develop across Los Angeles and Ventura Counties Monday and Tuesday. There is a slight chance of showers Wednesday otherwise conditions will be dry through Saturday.

SHORT TERM (TDY-WED). 15/155 PM.

THere are still a few clouds piled up over the Los Angeles and Ventura County mountains. There were light rain and snow showers earlier today with the snow level down to at least 5000 feet.

It's a chilly day across the region, with temps down 3-5 degrees at the coasts and valley sand 5-15 degrees in the mountains from those observed on Saturday.

Gusty advisory level northwest to north winds are affecting the mountains and adjacent south coast of Santa Barbara County, across the Santa Clarita and San Fernando Valleys, the Santa Monica Mountains, much of the L.A. County coast, and the mountains of L.A. and VTU Counties. Winds are expected to continue through this evening and wind Advisories are in effect. An upper ridge will amplify off the West Coast tonight, building heights about 5DM as it moves into the forecast area on Monday. All models show good offshore gradients with LAX-DAG on monday morning around -5 mb, and increasing during the day. Winds should peak Tuesday morning and the NAM currently has an impressive -9 mb LAX-DAG gradient. There is some upper-level support, but winds should stay in advisory-level range as opposed to a high wind warning.

Skies should be mostly clear Monday and there will be some warming with the rising heights and offshore flow.

The upper level ridge moves eastward allowing a trough to dip down beginning Tuesday afternoon. High clouds will increase, especially across northern and western sections where it will likely become rather cloudy. Not expecting a significant temperature change on Tuesday.

A negatively tilted trough will swing though the forecast area late Tuesday night and early Wednesday. A band of rain will move through SLO and SBA Counties, breaking apart as it moves south of and east of Point Conception on Wednesday. There is still a slight chance of rain in Ventura and Los Angeles Counties on Wednesday.

LONG TERM (THU-SUN). 15/203 PM.

Weak upper level ridging will move into the region on Thursday and linger into Friday, which should be the warmest day of the week in downtown LA. Dry weather is expected Thursday through Saturday, with increasing high clouds on Friday and Saturday with the approach of a large upper-level trough. The ridge will move east of the area Saturday and a large upper-level trough will approach the West Coast. Expecting light rain to start on Saturday and extended range ensembles suggest it could last through the following week and bring 2 or more inches to the area.

AVIATION. 15/1908Z.

At 1717Z, there was no marine layer inversion at KLAX.

S of Point Conception . VFR conds expected through the period. Gusty north winds may cause cross winds at some locations, including KLAX. Good confidence with NE wind shift by late this evening into early Monday morning. Possible UDDF and LLWS at many TAF sites.

N of Point Conception . Moderate to high confidence with VFR TAFs through the period. Good chance for MVFR CIGS at KPRB Monday morning.

KLAX . High confidence with sky, but low to moderate with wind conditions for 18Z TAF. VFR Conds through 00z Tue. There is a chance of moderate wind shear and turbulence below 050 through early this evening. North winds around 10 knots are likely early, strengthening this morning. There is a chance for northerly winds to gust between 20 and 30 knots early this afternoon.

KBUR . Moderate to high confidence with 18z TAF in respect to visibilities but lower with wind conditions. Overall VFR conds expected. Some UDDF and LLWS through at least 06z this eve.

MARINE. 15/136 PM.

Outer Waters . A Small Craft Advisory (SCA) continues through late tonight. On Tuesday and Tuesday night, there is a good chance of SCA level east to southeast winds across the outer waters.

Inner Waters North of Pt Sal . Good confidence with SCA conds due to winds and hazardous seas will continue through late tonight. On Tuesday and Tuesday night, There is a 30% chance for SCA level east to southeast winds.

Inner Waters south of Point Conception . Moderate to high confidence in the current forecast. A SCA for both the inner water zones PZZ650-655 continues through this evening. Then, from late Sun night through Tue, there is a 50% chance for SCA level NE winds each morning, especially across eastern sections between Ventura and Malibu to the Channel Islands as well as the San Pedro Channel to Avalon Harbor. Strongest winds are expected Tuesday morning.

A large and long period west to northwest swell will affect the coastal waters through at least late tonight, resulting in hazardous sea conditions and large breaking waves near shore, especially with a large short period wind swell on top of that.

BEACHES. 15/135 PM.

A HIGH SURF ADVISORY remains in effect for the Central Coast through Monday morning. The highest surf will occur across exposed west facing beaches. Strong rip currents and dangerous breaking waves are expected.

Another high surf event is possible beginning Wednesday.

LOX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory in effect until noon PST Monday for zones 34-35. (See LAXCFWLOX). Wind Advisory in effect until 6 PM PST this evening for zones 39-52. (See LAXNPWLOX). Wind Advisory in effect until 9 PM PST this evening for zones 41-46-53-54-88-547. (See LAXNPWLOX). PZ . Small Craft Advisory in effect until 3 AM PST Monday for zones 645-670-673-676. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PST this evening for zones 650-655. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (WED-SUN).

Gusty northeast winds possible across parts of LA/Ventura Counties Tuesday. Light rain is expected Tuesday evening and Wednesday, primarily in San Luis Obispo County.



PUBLIC . jld AVIATION . Sweet/Kaplan MARINE . Sweet BEACHES . Sweet SYNOPSIS . Kj

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 4 mi57 min NW 15 G 23
PFXC1 5 mi57 min NW 21 G 27
46256 5 mi57 min 61°F4 ft
PFDC1 6 mi57 min W 13 G 16
PSXC1 6 mi57 min WNW 14 G 19
AGXC1 7 mi57 min WNW 16 G 23
BAXC1 7 mi57 min SSW 22 G 25
OHBC1 - 9410660 - Los Angeles, CA 8 mi57 min 63°F1016.8 hPa (-0.8)
PXAC1 8 mi63 min WNW 19 G 24
46253 12 mi57 min 63°F6 ft
46222 - San Pedro, CA (092) 13 mi34 min 62°F7 ft
ICAC1 - 9410840 - Santa Monica Pier 27 mi57 min NW 14 G 21 62°F 62°F1017.8 hPa (-0.4)
46221 - Santa Monica Bay, CA (028) 28 mi31 min 62°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 49 mi37 min WNW 16 G 19 59°F 1018.3 hPa50°F

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Alamitos Army Airfield, CA5 mi2 hrsWNW 910.00 miFair66°F44°F46%1016.2 hPa
Long Beach, Long Beach Airport, CA6 mi64 minNW 1810.00 miFair and Breezy64°F27°F25%1015.9 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi64 minW 1110.00 miA Few Clouds66°F28°F25%1015.5 hPa
Torrance, Zamperini Field Airport, CA12 mi70 minW 21 G 2710.00 miClear and Breezy61°F39°F45%1016.3 hPa
John Wayne-Orange County Airport, CA14 mi64 minVar 410.00 miA Few Clouds67°F30°F26%1016 hPa
Hawthorne, Hawthorne Municipal Airport, CA18 mi64 minNW 9 G 2110.00 miFair64°F26°F24%1016.9 hPa
Los Angeles, Los Angeles International Airport, CA20 mi64 minNW 15 G 2910.00 miA Few Clouds65°F26°F23%1016.5 hPa
Los Angeles / USC Campus Downtown, CA21 mi65 minNW 810.00 miFair63°F32°F31%1016.2 hPa

Link to 5 minute data for KSLI

Wind History from SLI (wind in knots)
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Last 24hrW9W9W7CalmSE4E5CalmCalmCalmCalmCalmW3CalmW4CalmCalmN5NW7NW8N8W7NW9NW9W11
1 day agoS7CalmCalmCalmCalmCalmCalm--E4E3SE3E4E3E4NE4E3NE3NE3CalmCalmSW3S5SW7S8
2 days agoSW7S3CalmCalmE3CalmCalmCalmCalmN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm4CalmSW8S6

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Sun -- 12:54 AM PST     3.13 feet High Tide
Sun -- 05:22 AM PST     1.56 feet Low Tide
Sun -- 06:49 AM PST     Sunrise
Sun -- 09:58 AM PST     Moonset
Sun -- 11:25 AM PST     4.95 feet High Tide
Sun -- 04:45 PM PST     Sunset
Sun -- 07:09 PM PST     -0.37 feet Low Tide
Sun -- 08:31 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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33.12.92.41.91.61.62.12.83.74.44.94.94.43.72.61.50.6-0.1-0.4-0.20.31.11.9

Tide / Current Tables for Long Beach, Middle Harbor, California
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Long Beach
Click for Map
Sun -- 04:10 AM PST     2.62 feet Low Tide
Sun -- 06:50 AM PST     Sunrise
Sun -- 09:59 AM PST     Moonset
Sun -- 10:24 AM PST     6.02 feet High Tide
Sun -- 04:45 PM PST     Sunset
Sun -- 05:57 PM PST     -0.62 feet Low Tide
Sun -- 08:31 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.83.63.22.82.62.73.244.85.665.95.34.331.60.4-0.4-0.6-0.30.41.42.43.2

Weather Map
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wmap_P
GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (18,4,5,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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