Monday, September21, 2020
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Marine Weather and Tides
East Rancho Dominguez, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:39AMSunset 6:51PM Monday September 21, 2020 8:27 PM PDT (03:27 UTC) Moonrise 11:30AMMoonset 10:07PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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- 217 Pm Pdt Mon Sep 21 2020
Tonight..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and sw 2 ft at 18 seconds. Patchy fog after midnight.
Tue..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and sw 2 ft at 18 seconds. Patchy fog in the morning.
Tue night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and sw 2 ft at 17 seconds. Patchy fog after midnight.
Wed..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and sw 2 ft at 16 seconds. Patchy fog in the morning.
Wed night..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and sw 2 ft at 15 seconds. Patchy fog after midnight.
Thu..Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and se 2 ft at 15 seconds. Patchy fog in the morning.
Thu night..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
Fri..S winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog.
Sat..S winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 217 Pm Pdt Mon Sep 21 2020
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 1022 mb high pressure center was located 800 nm west of point conception and a 1003 mb thermal low was in nevada. The high will move southward through Tuesday as a low pressure system moves through the gulf of alaska. Gusty nw winds will develop over the outer waters Tuesday through Friday.


7 Day Forecast for Marine Location Near East Rancho Dominguez, CA
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location: 33.9, -118.21     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 220023 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 523 PM PDT Mon Sep 21 2020

SYNOPSIS. 21/1248 PM.

Little change in temperature is expected through Tuesday with night and morning low clouds and fog across the coasts and lower valleys. A slight warming trend will occur Wednesday and Thursday followed by additional warm and dry conditions this weekend.

SHORT TERM (TDY-THU). 21/131 PM.

Still warm and dry across interior sections today, which has sparked additional plume development over the Bobcat Fire in the San Gabriel Mountains and Antelope Valley foothills. Temperatures were in the 90s with many humidities between 5-15 percent. A few southwest wind gusts of 25 to 35 mph in this region will result in brief periods of critical fire weather until sunset this evening. Elsewhere, rather benign weather concerns with a marine layer that jumped up to 1700 feet south of Pt Conception and less than 800 feet to the north. Low clouds have retreated off the coast for most areas except from Gaviota westward and along the central coast this afternoon. Expect a return of stratus and locally dense fog in these areas and mainly clouds for the Ventura and LA Coasts including the LA Valleys late tonight through Tuesday morning.

Onshore pressure gradients will be slightly weaker the next few days as high pressure slowly builds into the region, so not quite as gusty across the mountains and deserts in the afternoons. Very minimal changes are expected with temperatures and humidities however, just a couple of degrees lower Tuesday then higher on Wednesday. This will continue to create some elevated fire weather concerns each afternoon when humidities drop into the lower teens. Wind direction begins to veer to the west and northwest late Wednesday which could be the first evening Sundowners returning to western hills of the south Santa Barbara County coast. Building heights will help to lower the marine inversion through Wednesday, so less inland push of low clouds but more likely to see locally dense fog for coastal areas.

On Thursday, there is a weak trough that slides across northern CA that strengthens the northwesterly wind flow heading into Friday. NW to N offshore pressure gradients of 2-3 mb develop over south Santa Barbara County Thursday evening for a potential wind advisory Sundowner by then. Not much change in temperatures yet through the short term.

LONG TERM (FRI-MON). 21/129 PM.

A storm system will pass through the Pacific Northwest on Friday and into the northern Rockies by Saturday. This helps high pressure build off the West Coast during the period with northerly flow increasing over southern CA. Warming should take place for the majority of the area with the marine layer becoming more restricted to the LA Basin by Saturday morning. Sundowner winds and I-5 corridor winds will likely add downslope warming to many areas with heights building to 592dm or higher by Saturday.

Looking beyond Saturday, the GEFS and ECMWF ensembles both hint at a significant warm up late this weekend and early next week as high pressure encompasses the Great Basin and West Coast. Heights build to 594dm or higher by Monday, which is outside of model climatology (less frequent than 1-day every 10-years) for this time of the year. The bottom-line is that we could be flirting with record temperatures once again with highs 95-105 degrees in the coastal and interior valleys, especially if we get any significant offshore wind regime (ECM deterministic shows -3mb LAX-DAG and -9mb LAX-TPH). The hot and dry scenario will likely become a headline not only for the potential heat stress and record highs, but for fire weather concerns for new and existing fires. Large plume growth would likely contribute to rapid fire growth and fire behavior.

AVIATION. 22/0006Z.

At 2308Z at KLAX, the marine layer was 1100 feet deep. The top of the inversion was around 3000 feet with a temperature of 26 C.

High confidence in desert TAFs and KPRB. Moderate confidence in coastal and valley TAFs.

Will continue with a persistent forecast overall over the next 24-hour period, except there is a 40% chance that stratus could clear out an hour earlier across coastal areas, especially N of Point Conception.

There is a 30% chance that VLIFR Conds will not occur for coastal TAF sites N of Point Conception overnight into Tue morning. There is a 20% chance that IFR Conds will continue across coastal TAF sites S of Point Conception and not increase to MVFR CIGs.

KLAX . Moderate confidence in 00z TAF. There is a 30 percent chance of marine clouds arriving +/- an hour from forecasted time. There is a 20% chance that an easterly compononet wind will exceed 8 knots between 13-18z.

KBUR . Moderate confidence in 00z TAF. There is 30 percent chance of marine clouds arriving +/- an hour from from forecasted time.

MARINE. 21/120 PM.

A Small Craft Advisory has been issued for zone 670 as wind gusts will just reach 25 knots this afternoon into tonight. Elsewhere, winds are expected to remain below SCA criteria. By Tuesday afternoon, there is a 60% chance of SCA level winds in zone 670 again with a 40 percent chance in other sections of the outer waters. Gusty NW winds will spread southward by Wednesday and there is a 70% chance of widespread SCA level winds across the outer waters through San Nicolas Island Wednesday into Thursday. Good confidence that SCA level winds will continue through Friday. There is a 30-40% chance that SCA level winds may bleed into the western portion of the Santa Barbara Channel Wednesday through Friday.

Patchy fog, locally dense with visibility of one nautical mile or less, will likely affect the coastal waters through this morning.

LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect until 3 AM PDT Tuesday for zone 670. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (THU-MON).

Strong high pressure is expected to build over the West Coast Sunday and Monday. Heat stress and elevated fire weather conditions will be possible, especially on Monday.



PUBLIC . EB/Rorke AVIATION . Kaplan MARINE . Sweet SYNOPSIS . EB

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BAXC1 9 mi105 min N 9.9 G 11
PSXC1 9 mi57 min WNW 5.1 G 7
PXAC1 10 mi111 min NNW 6 G 7
PFXC1 11 mi57 min NNW 7 G 8
PFDC1 12 mi111 min Calm G 1
PRJC1 12 mi57 min W 6 G 7
AGXC1 13 mi105 min WSW 8 G 8.9
OHBC1 - 9410660 - Los Angeles, CA 13 mi57 min 63°F
46256 14 mi31 min 66°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 17 mi57 min W 9.9 G 11 66°F 69°F
46222 - San Pedro, CA (092) 20 mi36 min 66°F2 ft
46268 21 mi57 min 65°F 67°F2 ft
46253 22 mi31 min 69°F2 ft
46221 - Santa Monica Bay, CA (028) 23 mi64 min 71°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 45 mi27 min W 9.7 G 12 65°F 69°F1013.3 hPa (+0.4)61°F

Wind History for Los Angeles Badger Avenue Bridge, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA6 mi34 minNW 910.00 miFair68°F62°F81%1012.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA7 mi34 minW 610.00 miSmoke67°F60°F79%1013 hPa
Torrance, Zamperini Field Airport, CA9 mi2.7 hrsW 1510.00 miClear70°F62°F78%1012.5 hPa
Los Angeles / USC Campus Downtown, CA9 mi35 minWSW 48.00 miFair68°F60°F76%1012.7 hPa
Los Angeles, Los Angeles International Airport, CA10 mi34 minW 910.00 miA Few Clouds66°F60°F81%1012.9 hPa
Los Alamitos Army Airfield, CA11 mi31 minSSW 38.00 miFair72°F57°F61%1013.5 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi34 minVar 39.00 miFair73°F60°F64%1012.4 hPa
El Monte, CA16 mi97 minSSW 510.00 miFair75°F60°F61%1012.5 hPa
Burbank - Bob Hope Airport, CA22 mi34 minSE 610.00 miFair72°F57°F61%1011.7 hPa
John Wayne-Orange County Airport, CA24 mi34 minS 68.00 miA Few Clouds69°F61°F76%1012.9 hPa

Link to 5 minute data for KLGB

Wind History from LGB (wind in knots)
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Last 24hrN4N3CalmSE4SE3SE3SW3CalmCalmCalmCalmCalmE4CalmS4S4S7S8S5S5W8W12W9NW9
1 day agoNW6NW3CalmCalmCalmE4E3CalmSE4CalmSE3S3SE4CalmS4SW75S6S6S7SE6S4CalmNW4
2 days agoW9W3W4NW4CalmCalmCalmCalmCalmE4CalmNE3CalmCalmS45SW7S5S7NW6NW8NW7NW8NW7

Tide / Current Tables for Long Beach, Inner Harbor, California
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Long Beach
Click for Map
Mon -- 12:47 AM PDT     4.28 feet High Tide
Mon -- 06:17 AM PDT     1.60 feet Low Tide
Mon -- 06:40 AM PDT     Sunrise
Mon -- 11:29 AM PDT     Moonrise
Mon -- 12:39 PM PDT     5.62 feet High Tide
Mon -- 06:50 PM PDT     Sunset
Mon -- 07:45 PM PDT     0.39 feet Low Tide
Mon -- 10:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.343.32.61.91.61.72.23.14.155.55.65.24.33.221.10.50.40.71.42.2

Tide / Current Tables for Long Beach, Middle Harbor, California
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Long Beach
Click for Map
Mon -- 12:42 AM PDT     4.50 feet High Tide
Mon -- 06:12 AM PDT     1.68 feet Low Tide
Mon -- 06:40 AM PDT     Sunrise
Mon -- 11:30 AM PDT     Moonrise
Mon -- 12:34 PM PDT     5.92 feet High Tide
Mon -- 06:50 PM PDT     Sunset
Mon -- 07:40 PM PDT     0.41 feet Low Tide
Mon -- 10:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.54.13.42.721.71.82.43.34.45.35.85.95.44.43.32.11.10.50.40.81.52.4

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
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.