Monday, March30, 2020
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Marine Weather and Tides
Rancho Palos Verdes, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:40AMSunset 7:13PM Monday March 30, 2020 5:22 AM PDT (12:22 UTC) Moonrise 10:36AMMoonset 12:15AM Illumination 39% Phase: Waxing Crescent; Moon at 6 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- 304 Am Pdt Mon Mar 30 2020
Today..Western portion, W to nw winds 10 to 20 kt with local gusts to 25 kt. Elsewhere, winds variable 10 kt or lees, becoming W 10 to 15 kt with local gusts to 20 kt in the afternoon. Wind waves 2 to 4 ft. W swell 3 to 5 ft at 6 seconds.
Tonight..W to nw winds 10 to 20 kt with local gusts to 20 kt, becoming nw 5 to 10 kt after midnight. Wind waves 2 to 4 ft, becoming 1 ft or less late. W swell 2 to 4 ft at 7 seconds.
Tue..NW winds 5 to 10 kt, becoming W 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. W swell 3 ft at 7 seconds.
Tue night..W winds 10 to 20 kt in the evening, becoming variable 10 kt or less. Wind waves 1 to 3 ft. W swell 2 to 4 ft at 7 seconds. Patchy fog after midnight.
Wed..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 1 to 3 ft. W swell 2 to 3 ft at 7 seconds. Patchy fog.
Wed night..W winds 10 to 15 kt with local gusts to 20 kt. Wind waves 1 to 3 ft. W swell 2 to 4 ft at 7 seconds.
Thu..W winds 10 to 20 kt. Wind waves 1 to 3 ft. W swell 3 to 5 ft.
Fri..W winds 10 to 20 kt. Wind waves 1 to 3 ft. Mixed swell W 3 to 5 ft and S 2 ft.
PZZ600 304 Am Pdt Mon Mar 30 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z, or 2 am pdt, a 1011 mb surface low was centered in arizona. A 1027 mb surface high was located about 700 nm W of point conception. This high will strengthen and build toward the west coast, bringing increasing winds to the coastal waters. Gales are possible Tuesday afternoon through at least Wed night, especially across the outer waters.


7 Day Forecast for Marine Location Near Rancho Palos Verdes, CA
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location: 33.7, -118.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 301206 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 506 AM PDT Mon Mar 30 2020

SYNOPSIS. 29/1136 PM.

Skies will be mostly clear for the next few days except for some low clouds developing across the coast on Wednesday morning. Max temps rise both Monday and Tuesday and will be near normal on Tuesday. It will then be cooler again starting Wednesday. Dry conditions will persist through at least Friday.

SHORT TERM (TDY-WED). 30/145 AM.

Dry NW flow will persist over the area through Wednesday. Aside from some night through morning low clouds skies will be mostly clear for the next three days.

Some low clouds are randomly forming this morning esp in the Salinas, Cuyama and Santa Ynez Vlys. A weak eddy will likely bring a few low clouds to the LGB area Tuesday morning while offshore flow keeps the rest of the coasts and vlys clear. The same offshore flow will bring some low clouds to the Cuyama and Interior SLO Vly. Weaker offshore flow and a stronger eddy will bring more low clouds to southern LA county on Wednesday. Another round of night and morning clouds is likely for the Cuyama and Interior SLO Vly as well.

There will be about a mb of offshore flow from the east this morning. On Tuesday morning it will be neutral and then will turn onshore on Wed. There will be continuous offshore flow from the north and it will peak on Tuesday morning.

Hgts peak this afternoon at around 578 DM fall some Tuesday and then decrease some more to 568 DM on Wednesday. Max temps will jump significantly today (3 to 6 degrees csts/vlys and 5 to 10 degrees across the interior). The increased offshore northerly flow will be more than enough to counter the lowering hgts on Tuesday and temps will warm another 3 to 6 degrees making Tuesday the warmest day of the next 7. Max temps on Tuesday will be at or even a little above normal. On Wednesday lower hgts and less offshore flow will knock 2 to 5 degrees off of Tuesday readings.

The strong northwest flow pattern and sfc offshore flow will generate gusty north to northwest winds across southern SBA County, the I-5 corridor and portions of the Antelope Vly. Wind advisories are likely for the SBA south coast both tonight and Tuesday night. The I-5 corridor and NW corner of the Antelope Vly will very likely see advisory level gusts Tuesday evening and overnight.

LONG TERM (THU-SUN). 30/333 AM.

Both the EC and GFS agree that weather excitement levels will be quite low on Thu and Fri as dry NW flow with hgts near 567 DM will be over the area. Temps will are likely to rise to a degree each day. Offshore flow will continue but the wind speeds will be much reduced from Tuesday Night's Wednesday's values.

On Saturday the flow flattens out as a cold upper low plunges southward southward just off the coast it then pivots eastward and across Nrn CA. There will be a slight bump up in clouds and max temps will lower some but not too much as hgts fall.

Both mdls indicate broad troffing setting up over the state on Sunday. The mdls are beginning to go out of phase. The GFS is cooler than the slower EC. The clouds will be on the increase and max temps will drop esp if the cooler GFS comes to pass.

Monday looks interesting - The EC and most of its ensemble members bring a cold upper low and rain to the area. The GFS disagrees and has dry NW flow. It will be interesting to see how the two mdls and all of their myriad of ensemble members handle this forecast tomorrow when Monday becomes part of the official forecast.

AVIATION. 30/1205Z.

At 11Z at KLAX, there was no marine inversion.

There areas of low clouds on the Central Coast and in the valleys of SLO and SBA Counties. Conds were mostly IFR to LIFR, except locally low MVFR near the coast. Expect skies to clear by mid to late morning. Then, VFR conds are expected this afternoon through Tue morning except for some low clouds across coastal sections of L.A. County late tonight with low MVFR or high IFR conds.

KLAX . Moderate to high confidence in the 12Z TAF. There is a 20-30% chance that cigs tonight will be in the IFR category. There is a 20% chance that skies will remain clear tonight.

KBUR . High confidence in the 12Z TAF with VFR conds thru the pd.

MARINE. 30/439 AM.

Outer waters . Good confidence in forecast. Expect Small Craft Advisory (SCA) winds or greater across the southern two zones (PZZ673/676) thru Fri, and across the northern zone (PZZ670) this afternoon thru Fri. There is a good chance of Gales Tue afternoon thru at least Wed night, so have issued a Gale Watch.

Inner waters N of Pt Sal. Good confidence in forecast. Expect SCA level winds this afternoon/evening. SCA conds are likely during the afternoon/evening hours Tue thru Fri. There is a 30% chance of Gale force winds Wed afternoon/evening.

Santa Barbara Channel . Low to moderate confidence in forecast. There is a 30-40% chance that a SCA will be needed this afternoon and evening and again Tue afternoon/evening, mainly for western portions. SCA conds are likely Wed thru Fri.

Southern Inner Water . Low to moderate confidence in forecast. There is a 30-40% chance that a SCA will be needed this afternoon and evening and again Tue afternoon/evening, mainly for western portions. There is a 30-40% chance of SCA conds Wed thru Fri.

There will be an extended period of hazardous short period seas under 9 seconds this entire week across most of the waters.

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

.HAZARD POTENTIAL OUTLOOK (WED-SUN).

No significant hazards expected.



PUBLIC . Rorke AVIATION . DB MARINE . DB SYNOPSIS . 30

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 2 mi52 min 60°F1022 hPa
AGXC1 4 mi106 min NNW 2.9 G 2.9
PFDC1 4 mi112 min W 1 G 1
PXAC1 5 mi106 min N 1.9 G 1.9
46222 - San Pedro, CA (092) 6 mi59 min 58°F3 ft
46256 6 mi52 min 58°F3 ft
BAXC1 6 mi106 min NE 1 G 1.9
PFXC1 6 mi52 min NNE 1 G 1.9
PSXC1 6 mi52 min NE 1.9 G 2.9
PRJC1 7 mi52 min NNE 4.1 G 5.1
46253 11 mi52 min 58°F3 ft
46221 - Santa Monica Bay, CA (028) 20 mi26 min 57°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi52 min NNE 5.1 G 6 54°F 60°F1022 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 40 mi32 min NNW 12 G 14 58°F 59°F3 ft1021.6 hPa55°F

Wind History for Los Angeles Pier 400, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA12 mi29 minN 010.00 miFair51°F46°F86%1021.5 hPa
Los Alamitos Army Airfield, CA15 mi24 minNE 510.00 miFair50°F45°F82%1021.6 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi29 minN 010.00 miFair52°F46°F80%1021.8 hPa
Los Angeles, Los Angeles International Airport, CA17 mi29 minNE 310.00 miA Few Clouds54°F46°F75%1021.6 hPa
Fullerton, Fullerton Municipal Airport, CA21 mi29 minENE 410.00 miA Few Clouds54°F46°F77%1021.4 hPa
Avalon Catalina Airport, CA21 mi31 minNW 90.50 miFog51°F46°F86%1020.7 hPa
Los Angeles / USC Campus Downtown, CA22 mi30 minN 010.00 miFair56°F46°F70%1021.6 hPa
John Wayne-Orange County Airport, CA23 mi29 minE 610.00 miA Few Clouds57°F48°F74%1021.3 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi31 minN 010.00 miFair50°F46°F86%1021.8 hPa

Link to 5 minute data for KTOA

Wind History from TOA (wind in knots)
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Last 24hr----------------------CalmCalmCalm--W4NW6W11SW11W15
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1 day agoSW10
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--------------------S3CalmCalmCalmCalmSW4W8W11W11W11W13----
2 days agoW13--------------------W8NW8--NW8W8SW6SW7
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Tide / Current Tables for Los Angeles (outer harbor), California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Mon -- 12:15 AM PDT     Moonset
Mon -- 12:39 AM PDT     4.77 feet High Tide
Mon -- 06:42 AM PDT     Sunrise
Mon -- 08:27 AM PDT     0.88 feet Low Tide
Mon -- 10:35 AM PDT     Moonrise
Mon -- 03:44 PM PDT     2.69 feet High Tide
Mon -- 05:53 PM PDT     2.63 feet Low Tide
Mon -- 07:12 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.74.74.53.93.22.41.71.20.90.91.11.51.92.32.52.72.72.72.62.72.93.23.54

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 (8,2,3,4)
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Ground Weather Radar Station Santa Ana Mtns, CA
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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 numerous 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.