Friday, April3, 2020
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Marine Weather and Tides
Manhattan Beach, 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 6:35AMSunset 7:17PM Friday April 3, 2020 3:00 AM PDT (10:00 UTC) Moonrise 2:26PMMoonset 3:54AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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- 258 Am Pdt Fri Apr 3 2020
Today..E winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
Tonight..W winds 10 to 15 kt, becoming se after midnight. Wind waves 1 to 3 ft. W swell 3 to 5 ft at 9 seconds. Patchy fog after midnight.
Sat..SE winds 10 to 15 kt, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds. Patchy fog in the morning.
Sat night..W winds 10 to 15 kt. Combined seas 4 to 5 ft dominant period 8 seconds.
Sun..W winds 10 to 15 kt. Combined seas 3 to 5 ft dominant period 7 seconds. Slight chance of rain in the afternoon.
Sun night..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 7 seconds and S 2 ft at 12 seconds. Chance of rain in the evening. Slight chance of tstms. Rain.
Mon..SW winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. Mixed swell W 3 ft and S 2 ft. Rain and slight chance of tstms.
Tue..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 3 ft. Chance of showers.
PZZ600 258 Am Pdt Fri Apr 3 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 1028 mb surface high was 600 nm W of point conception and a weak trough of low pressure was over the S california bight. This persistent pattern will maintain moderate to strong nw winds and steep seas through Saturday.


7 Day Forecast for Marine Location Near Manhattan Beach city, CA
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location: 33.88, -118.41     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 030624 AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 1124 PM PDT Thu Apr 2 2020

SYNOPSIS. 02/336 PM.

Temperatures will remain near normal through Friday. Overnight to morning areas of fog are expected for coastal LA County tonight, with low clouds spreading well inland for areas south of Point Conception Friday night into early Saturday. By Sunday, a storm system will bring rain and cooler temperatures to the area. Rain will spread over the region from north to south Sunday and Monday.

SHORT TERM (THU-SUN). 02/922 PM.

Broad troughing remains over the western United States this evening. The latest satellite imagery shows the broad trough centered over Alberta with shortwave troughs rotating around the main circulation. Near normal temperatures will persist into Friday, then a cooling trend will take shape for the weekend as a storm system near the Aleutian Islands will dig south into region through Monday.

A northerly pressure gradient remaining in place this evening will continue locally gusty winds through the Interstate 5 Corridor tonight and into Friday morning, and advisory level winds across southern Santa Barbara County tonight. Wind gusts up to 45 mph may make travel difficult due to gusty cross winds.

The latest fog product shows stratocumulus over eastern Los Angeles County this evening and the cloud deck should recede into Friday morning pulling back into the lower elevations of the San Gabriel Valley and over southern Los Angeles County. Widespread stratus is not expected like last night, but patches north cannot ruled out.

No further updates are planned at this time.

***From Previous Discussion***

Skies will become increasingly cloudy Saturday with mid and higher level clouds through the day as the upper low approaches from the NW. Afternoon temperatures will cool 2 to 4 degrees and fall below seasonal normal. The 530 DM upper low will move to a position 80 miles west of the OR/CA state line late Saturday night. Moist westerly flow will move over the Central Coast and there is a chance that light rain will develop over SLO county after midnight.

Model solutions move the low slowly on Sunday but the moist cyclonic flow will overspread all of SoCal. Heights will fall to 556 DM and it will be a cloudy day. Afternoon temperatures will be in the 60s across all non-mountain areas. Light rain will likely fall over SLO and SBA counties. There is a chance Ventura and LA Counties will see some rain in the afternoon as well.

LONG TERM (MON-THU). 02/150 PM.

Things get interesting with the storm Sunday night and Monday. The low will bring PVA, sub-tropical jet dynamics, and strengthening southwesterly flow. The system also looks to entrain a small plume of moisture from the Pacific. Rain will almost certainly spread over the entire area Sunday night. The period of most intense rain will be between midnight Sunday and noon Monday. During this time there will be good southerly low level flow which will greatly enhance the rainfall rates and totals over the south facing slopes from Santa Ynez range to the San Gabriels. The heavier rain will move out of SLO and northern SBA counties by early in the afternoon and will end over LA county late in the afternoon. Showers will continue overnight as the upper low will remain near the area.

Still thinking the areas of the coasts and valleys not producing orographic lift should get about an inch of rain plus or minus a few tenths. The south facing slopes from SBA to LA county should receive 2 to 3 inches of rain. The interior will likely see a half to three quarters of an inch.

There will be snow with this system and snow levels will be low for April but still not expecting snow on the major passes. Snow levels are expected to start out at 6000' and then lower to about 4500 ft by Monday. This storm will likely bring quite a bit of snow to elevations above 6000 feet.

Tuesday through Thursday evening looks to bring isolated showers and possible afternoon thunderstorms in the colder airmass. Afternoon temperatures will be likely be 10 to 20 degrees below normal through the extended period under cloudy skies.

AVIATION. 03/0624Z.

At 0530Z at KLAX, there was deep moist layer up to around 5000 feet.

High confidence in TAFs xcp KSMO, KLAX and KLGB where there is a 30 percent chc of MVFR cigs 10Z-16Z.

KLAX . High confidence in TAF xcp from 10Z-16Z with a 30 percent chc of BKN025. Good confidence that there Will be no east component greater than 6 kt.

KBUR . High confidence in TAF.

MARINE. 02/817 PM.

Moderate confidence in the current forecast. Strong northwest flow will persist through Saturday, keeping at least Small Craft Advisory (SCA) level conditions over the outer waters from the Central Coast to San Nicolas Island during this time. These winds will generate a steep swell over ALL coastal waters through Saturday. Gale force gusts are likely at times over all the outer waters, with a 40% chance of local gusts to 35 knots through Friday morning. The strong gusts are likely to become more widespread late Friday afternoon through most of Friday night, decreasing from the north after midnight. SCA conditions will affect the western portion of the Santa Barbara Channel for the afternoon and evening hours Friday, and the inner waters north of Point Sal. After Saturday, conditions will likely remain below SCA level across all the waters.

SE winds will also impact the San Pedro Channel each morning through Saturday, and could locally approach 15 kt at times causing rough short period seas up to 3 feet.

A storm system is expected early next week bringing a chance of rain to the waters Sat night through midweek. There is a slight chance of thunderstorms Sun evening.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory in effect until 3 AM PDT Friday for zones 39-52. (See LAXNPWLOX). PZ . Small Craft Advisory in effect until 3 AM PDT Friday for zones 645-650. (See LAXMWWLOX). Small Craft Advisory in effect until 3 PM PDT Friday for zones 670-673-676. (See LAXMWWLOX). Gale Watch in effect from Friday afternoon through Friday evening for zone 670. (See LAXMWWLOX). Gale Watch in effect from Friday afternoon through late Friday night for zones 673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (SUN-THU).

Rain, possibly heavy at times, and mountain snow above 4500 feet are expected Sunday through Monday with a chance of showers lingering through the week - potentially causing road hazards.



PUBLIC . Hall/jld AVIATION . Rorke MARINE . Smith SYNOPSIS . Smith

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 10 mi43 min NE 5.1 G 6 55°F 62°F1015.1 hPa
PXAC1 11 mi97 min S 5.1 G 6
BAXC1 12 mi97 min ESE 8 G 9.9
46221 - Santa Monica Bay, CA (028) 12 mi35 min 59°F4 ft
PSXC1 12 mi43 min SSE 8 G 8.9
OHBC1 - 9410660 - Los Angeles, CA 13 mi49 min 61°F1015.2 hPa
PFDC1 13 mi109 min SE 6 G 8.9
AGXC1 14 mi97 min SSE 9.9 G 12
PFXC1 14 mi43 min SSE 9.9 G 12
PRJC1 16 mi43 min SSE 9.9 G 11
46256 17 mi31 min 60°F5 ft
46222 - San Pedro, CA (092) 19 mi38 min 60°F4 ft
46253 24 mi33 min 58°F4 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi21 min Calm G 1.9 59°F 60°F1014.6 hPa56°F

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA4 mi68 minNNE 410.00 miA Few Clouds58°F50°F75%1014.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi68 minN 010.00 miFair56°F48°F77%1015 hPa
Santa Monica, Santa Monica Municipal Airport, CA11 mi70 minN 010.00 miFair53°F46°F77%1014.9 hPa
Los Angeles / USC Campus Downtown, CA12 mi69 minN 010.00 miFair60°F48°F65%1014.6 hPa
Long Beach, Long Beach Airport, CA14 mi68 minSE 410.00 miFair58°F52°F81%1014.7 hPa
Los Alamitos Army Airfield, CA20 mi63 minSE 410.00 miFair57°F48°F75%1015.2 hPa
Burbank - Bob Hope Airport, CA22 mi68 minESE 510.00 miFair56°F44°F65%1013.8 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi68 minSE 510.00 miFair59°F51°F75%1014.7 hPa
Van Nuys, Van Nuys Airport, CA23 mi70 minN 010.00 miFair55°F45°F69%1014.1 hPa

Link to 5 minute data for KLAX

Wind History from LAX (wind in knots)
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Last 24hrE5E4E5E3CalmE4CalmSW10S9S9SW13W13W14----W13W10W10W73S5S6N4Calm
1 day agoE3SE5E5E4E5E543W10W11SW13SW11W10W10W8SW7W5CalmCalmSE4SE6E8E10E10
2 days agoCalmCalmCalmW3N5NE33NE3W10W10W10W12W10W11W7SW9SW5W5W4SW5SW4CalmE3Calm

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Fri -- 12:23 AM PDT     2.39 feet Low Tide
Fri -- 03:54 AM PDT     Moonset
Fri -- 06:13 AM PDT     4.65 feet High Tide
Fri -- 06:37 AM PDT     Sunrise
Fri -- 01:25 PM PDT     -0.44 feet Low Tide
Fri -- 02:25 PM PDT     Moonrise
Fri -- 07:16 PM PDT     Sunset
Fri -- 08:06 PM PDT     3.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.42.73.33.94.44.64.543.120.90.1-0.4-0.40.21233.73.93.83.32.7

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Fri -- 12:08 AM PDT     2.54 feet Low Tide
Fri -- 03:54 AM PDT     Moonset
Fri -- 06:00 AM PDT     4.88 feet High Tide
Fri -- 06:37 AM PDT     Sunrise
Fri -- 01:17 PM PDT     -0.43 feet Low Tide
Fri -- 02:25 PM PDT     Moonrise
Fri -- 07:16 PM PDT     Sunset
Fri -- 07:59 PM PDT     4.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.52.633.64.24.74.94.743.11.90.8-0-0.4-0.30.31.22.23.23.843.83.32.7

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (6,6,7,8)
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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.