Thursday, December12, 2019
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Marine Weather and Tides
Sunset 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 6:46AMSunset 4:45PM Thursday December 12, 2019 11:58 AM PST (19:58 UTC) Moonrise 6:27PMMoonset 8:10AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 832 Am Pst Thu Dec 12 2019
Today..W to nw winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 13 seconds.
Tonight..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 4 ft at 8 seconds.
Fri..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 17 seconds.
Fri night..Western portion, W winds 10 to 15 kt becoming nw 20 to 25 kt after midnight. Elsewhere, sw winds 5 to 10 kt becoming variable 10 kt or less after midnight. Wind waves 2 to 4 ft. W swell 4 to 5 ft at 9 seconds.
Sat..Western portion, nw winds 20 to 25 kt becoming 25 to 30 kt in the afternoon. Elsewhere, winds variable 10 kt or less becoming 15 to 20 kt in the afternoon. Combined seas 5 to 7 ft dominant period 7 seconds.
Sat night..Western portion, nw winds 30 to 35 kt becoming 25 to 30 kt after midnight. Elsewhere, nw winds 20 to 25 kt becoming 15 to 20 kt after midnight. Combined seas 7 to 10 ft dominant period 9 seconds.
Sun..N winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft.
Mon..N winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 4 ft.
PZZ600 832 Am Pst Thu Dec 12 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z or 7 am pst, a 1032 mb high was over colorado with a ridge extending to a 1026 mb high 400 nm southwest of point conception.


7 Day Forecast for Marine Location Near Sunset Beach CDP, CA
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location: 33.71, -118.06     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 121746 AAA AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 945 AM PST Thu Dec 12 2019

SYNOPSIS. Building high pressure will bring warmer weather through Friday. A trough moving over California this weekend will bring cooler weather along with gusty winds in the mountains and deserts. There will be a chance of light showers Saturday afternoon/night, except in the desert. Offshore flow will bring gusty northeast winds Monday and Tuesday.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

Morning Update:

No changes were needed to the forecast this morning. Patchy low clouds continue this morning near the coast with scattered mid and high clouds streaming across the region from the northwest. Temperatures will be a few notches warmer today across the area, with many areas 5 to 10 degrees above normal.

Previous Discussion from early this morning:

Waves of high clouds drift across our skies and there will be a few patches of low clouds and fog near the coast this morning. A high pressure ridge builds today and peaks out Friday promising a warming trend. Fair weather with fewer high clouds and patchy coastal fog is expected through Friday. The ridge breaks down this weekend under a hefty trough of low pressure moving through the West. Most of the energy misses SoCal to our north, but we'll get some wind and some December version of a deepened marine layer Saturday. Winds will be strongest in the mountains, deserts and coastal waters. Highest gusts in portions of the mountains could exceed 60 mph, but most mountains and deserts will gust 25-45 mph. The enhanced marine layer should produce light showers, particularly in far inland valleys and coastal slopes of the mountains. Higher mountains, coast and deserts should avoid measurable precip. A cold front moves through the area early Sunday for a cooler day. Offshore flow keeps the continental cold air flowing into the region Monday and Tuesday. Although higher pressure builds aloft, the warming trend is quite muted because of the cool offshore flow. Guidance is showing that high pressure ridge next week doing a good job of deterring any weather system from bringing us rain. What looked like Wednesday is now looking like Thursday for the next chance. Ensembles and deterministic guidance show low pressure to our west and southwest, but no serious jet power to drive it through the ridge (the GFS is completely dry for us through 10 days). While most guidance shows some showers appearing beyond seven days, the pattern change to wet weather appears halfhearted.

AVIATION.

121730Z . Excellent flying conditions with VFR and unrestricted vis expected through Friday. The exception is patchy radiational fog that will impact the coast/valleys 06-15Z Friday. Visibilities of 2- 4SM will be possible at times primarily KSAN/KCRQ/KSNA. Very light winds, mostly 5 knots or less through the period area wide.

MARINE. A large, west northwest swell with a period of 15-17 seconds could produce combined seas of 8 to 12 ft Friday through Sunday. West northwest winds will increase over the outer coastal waters Saturday through Sunday with gusts up to 30 kt possible. This will create hazardous boating conditions for mariners.

BEACHES. A west northwest swell with a period of 15-17 seconds will bring elevated to high surf and strong rip currents to the beaches Friday through Sunday. Current projections are for 5-7 foot surf with local sets to 8 feet, mainly in southern San Diego County. High tides over 6 feet along with the surf may cause local beach erosion. Will likely upgrade ongoing Beach Hazards Statement to High Surf Advisory with the afternoon package.

SKYWARN. Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX WATCHES/WARNINGS/ADVISORIES. CA . Beach Hazards Statement from Friday morning through Sunday afternoon for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ . NONE.



PUBLIC . MM/JMB AVIATION/MARINE/BEACHES . Moreland


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 7 mi59 min SE 1.9 G 2.9
46256 8 mi59 min 62°F3 ft
PFXC1 9 mi59 min SSE 5.1 G 6
AGXC1 10 mi59 min ESE 4.1 G 4.1
BAXC1 10 mi59 min ESE 5.1 G 5.1
PFDC1 10 mi65 min E 2.9 G 5.1
PSXC1 10 mi59 min SSE 4.1 G 5.1
46253 11 mi59 min 64°F4 ft
OHBC1 - 9410660 - Los Angeles, CA 11 mi59 min 63°F1024.1 hPa (+0.0)
PXAC1 11 mi59 min SE 4.1 G 5.1
46222 - San Pedro, CA (092) 15 mi36 min 63°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 31 mi59 min SW 5.1 G 7 62°F 62°F1023.9 hPa (+0.0)
46221 - Santa Monica Bay, CA (028) 32 mi33 min 62°F4 ft
46224 - Oceanside Offshore, CA (045) 48 mi59 min 63°F4 ft

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, CA6 mi2 hrsN 07.00 miMostly Cloudy62°F55°F80%1024.3 hPa
Long Beach, Long Beach Airport, CA10 mi66 minN 06.00 miFair with Haze64°F53°F68%1023.6 hPa
John Wayne-Orange County Airport, CA10 mi66 minS 410.00 miMostly Cloudy67°F55°F68%1023.6 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi66 minSE 38.00 miFair66°F43°F43%1023.2 hPa
Torrance, Zamperini Field Airport, CA16 mi72 minESE 1010.00 miPartly Cloudy64°F51°F64%1023.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA21 mi66 minVar 37.00 miFair66°F46°F50%1023.6 hPa
Los Angeles / USC Campus Downtown, CA24 mi67 minN 09.00 miFair68°F44°F42%1023.1 hPa
Los Angeles, Los Angeles International Airport, CA24 mi66 minVar 49.00 miMostly Cloudy67°F48°F51%1023.5 hPa

Link to 5 minute data for KSLI

Wind History from SLI (wind in knots)
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Last 24hrCalmSW6S4S5SW6CalmW5W6E3CalmCalm--CalmE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmSW6SW5CalmSW4W4E3CalmCalmCalmCalmCalmE3CalmCalmCalmNE3NE3CalmCalmCalmCalmCalm
2 days ago--SW5S3S7S5S3S3SE3E5E3E4--E3E4E5NE4NE3E4NE4E4NE5E3CalmCalm

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Thu -- 03:20 AM PST     1.24 feet Low Tide
Thu -- 06:47 AM PST     Sunrise
Thu -- 07:10 AM PST     Moonset
Thu -- 09:26 AM PST     5.30 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 04:54 PM PST     -0.49 feet Low Tide
Thu -- 05:27 PM PST     Moonrise
Thu -- 11:12 PM PST     3.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.82.21.61.31.31.92.73.84.75.25.24.73.82.61.40.4-0.3-0.5-0.20.51.42.32.93.2

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Thu -- 03:55 AM PST     0.41 feet Low Tide
Thu -- 06:46 AM PST     Sunrise
Thu -- 07:10 AM PST     Moonset
Thu -- 08:49 AM PST     3.45 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 05:26 PM PST     Moonrise
Thu -- 05:29 PM PST     -0.16 feet Low Tide
Thu -- 10:35 PM PST     2.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.20.80.50.40.71.52.43.23.43.32.92.41.71.10.50.1-0.1-0.10.311.622.1

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 San Diego, CA (14,3,4,5)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.