Sunday, March7, 2021
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Marine Weather and Tides
Seal Beach, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:11AMSunset 5:55PM Sunday March 7, 2021 7:46 PM PST (03:46 UTC) Moonrise 3:25AMMoonset 1:21PM Illumination 30% Phase: Waning Crescent; Moon at 24 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- 318 Pm Pst Sun Mar 7 2021
Tonight..W winds 5 to 10 kt, becoming 10 to 15 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 13 seconds. Patchy drizzle after midnight.
Mon..Winds variable 10 kt or less, becoming W 15 to 20 kt with local gusts to 25 kt in the afternoon. Strongest western portion. Wind waves 1 to 3 ft. W swell 2 to 4 ft at 14 seconds. Slight chance of rain and patchy drizzle in the morning.
Mon night..W winds 15 to 20 kt with local gusts to 25 kt. Strongest western portion. Combined seas 5 to 7 ft dominant period 15 seconds.
Tue..NW winds 10 to 15 kt, becoming W 10 to 20 kt in the afternoon. Wind waves 2 to 3 ft. W swell 3 to 5 ft at 15 seconds.
Tue night..W winds 15 to 20 kt with gusts to 25 kt, becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 3 to 5 ft at 14 seconds. Slight chance of rain in the evening, then chance of rain.
Wed..W winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 4 to 5 ft. Rain likely. Slight chance of tstms in the afternoon.
Wed night..W winds 15 to 20 kt with local gusts to 25 kt, becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 4 to 6 ft. Chance of showers and slight chance of tstms.
Thu..W winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 4 to 6 ft. Chance of showers.
Fri..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
PZZ600 318 Pm Pst Sun Mar 7 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 22z, or 2 pm pst, a 1026 mb high pressure center was located around 600 nm west of san francisco and a 991 mb low pressure center was located in the gulf of alaska.


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 080106 AAA AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 506 PM PST Sun Mar 7 2021

SYNOPSIS. 07/1249 PM.

Strengthening onshore flow will bring a cooling trend through Monday with increasing night through morning low clouds and fog. A cold storm system will likely bring rain and low elevation snow and gusty winds to the region late Tuesday through Thursday.

SHORT TERM (TDY-WED). 07/154 PM.

12Z models in good synoptic agreement through the short term period. At upper levels, broad cyclonic flow will persist over the area through Tuesday with an upper low dropping southward, just off the Central CA coast, on Wednesday. Near the surface, moderate onshore flow to the east will persist with some northerly offshore flow tonight through Monday night.

Forecast-wise, tonight and Monday should be rather uneventful. With cyclonic flow aloft and decent onshore surface gradients, expect marine inversion to deepen overnight. So, low clouds should be able to push into the coastal slopes by Monday morning. Additionally, this pattern will result in some patchy drizzle south of Point Conception with even a slight chance of measurable rain across Los Angeles county. Other than the marine layer clouds, varying amounts of high level clouds will continue through Monday. Temperatures on Monday will be a few degrees cooler all areas. Also, there will be some gusty westerly winds across the Antelope Valley Monday afternoon and some Sundowners Monday evening. For both these areas, there is a chance for low end advisory-level winds.

For Monday night/Tuesday, expect gradual increase in clouds with continued onshore flow and approaching cold front Tuesday afternoon. The cold front is forecast to begin impacting the Central Coast Tuesday afternoon/evening with rain becoming likely by the evening hours north of Point Conception. South of Point Conception, a slight chance to chance of precipitation will develop Tuesday evening. Models indicate some instability moving into the Central Coast Tuesday evening which will result in a slight chance of thunderstorms. Through Tuesday evening, snow levels will drop to 4000-4500 feet.

For Tuesday night/Wednesday, all models still indicate the upper low will sweep a cold front across the area. So, all areas can expect a decent amount of precipitation with this system. Steady light to moderate rain can be expected through Wednesday afternoon with a more showery pattern Wednesday evening. Through Wednesday evening, most areas can expect between 0.50 and 1.00 inches of rain with locally higher amounts in the mountains. With the cold air aloft, a slight chance of thunderstorms will be possible for all areas through Wednesday evening. Snow levels will continue to drop, lowering to 2500-3500 feet by Wednesday evening. With some gusty southwesterly winds anticipated, Winter Storm conditions will be possible in the SBA/Ventura/LA mountains. So, will issue a WINTER STORM WATCH from 1000 PM Tuesday evening through 1000 PM Thursday evening (snow totals potentially 6-12" above 4500 feet and southwest winds gusting to 45 mph), allowing for a big enough window for future shifts to fine tune the exact timing of winter storm conditions. With such low snow levels, there may be issues across the Grapevine during this time period. Please see LAXWSWLOX for the details on the WINTER STORM WATCH. As for the recent burn areas, do not anticipate any significant issues at this time, but the potentially heavy rainfall with any possible thunderstorm development will need to be watched closely.

LONG TERM (THU-SUN). 07/155 PM.

For the extended, after Thursday, forecast confidence decreases noticeably as GFS and ECMWF have much different ideas about the overall synoptic pattern.

For Thursday, both the GFS and ECMWF are on the same page. The upper low will move across the area during the day, reaching the eastern CA deserts by the evening. This pattern will keep a post-frontal showery pattern over the area through the day. There will be a chance of showers just about anywhere through the day. Given the continued cold air aloft, there still is an outside chance of isolated thunderstorms. However, do not think there is a high enough chance for any thunderstorm mention at this time. Snow levels will remain quite low, 2500-3000 feet in the morning then rising to 3500-4000 feet in the afternoon. So, there will continue to be a threat of winter weather conditions in the local mountains (resulting in the WINTER STORM WATCH continuing through Thursday evening).

For Friday through Sunday, forecast confidence bottoms out dramatically. GFS is more progressive with the pattern, moving the upper low into the Midwest Friday/Saturday with another trough impacting the area on Sunday. Conversely, the ECMWF keeps the upper low spinning near the 4 Corners area Friday/Saturday with a ridge moving over the area on Sunday. Either solutions keeps the area dry Friday/Saturday, but the GFS would indicate a chance of some light rain on Sunday. Given the uncertainty, will not get too cute with this time period. Will indicate dry conditions with partly cloudy to mostly clear skies and a gradual warming trend. Hopefully, the models will come into better agreement, allowing for a higher confidence forecast next weekend.

AVIATION. 08/0104Z.

At 00Z, the marine layer depth was around 2300 feet deep at KLAX. The top of the marine inversion was around 3300 feet with a temperature of around 10 degrees Celsius. There was another inversion up to around 6200 feet.

Moderate confidence in the current forecast. Higher confidence in timing, less confidence in flight categories.

North of Point Conception, LIFR to IFR conditions are likely to spread in between 04Z and 13Z. Conditions will improve one category

South of Point Conception, ceilings at or below 5000 feet are very likely for coastal and valley terminals after 02Z and clear northwest to southwest between 12Z and 22Z. MVFR conditions will likely develop over the area through 10Z. There is a slight chance of IFR conditions in drizzle.

KLAX . Ceilings at or below 5000 feet will spread in between 01Z and 04Z and very likely persist through at 17Z. There is a 40 percent chance of a later clearing as late as 20Z. There is a 80 percent chance of MVFR conditions between 06Z and 13Z. There is a 10 percent chance of IFR conditions in drizzle.

KBUR . Ceilings at or below 5000 feet will spread in between 02Z and 05Z and very likely persist through at 19Z. There is a 40 percent chance of a later clearing as late as 22Z. There is a 80 percent chance of MVFR conditions between 06Z and 15Z. There is a 20 percent chance of IFR conditions in drizzle.

MARINE. 07/156 PM.

For the Outer Waters . Small Craft Advisory (SCA) level winds and seas will continue through late Monday night. SCA level seas will likely continue through Thursday. There is a forty percent chance of SCA level winds on Tuesday, otherwise winds will remain below SCA level Tuesday through Thursday. Conditions will be below SCA level on Friday.

For the Inner Waters north of Point Sal . SCA level winds and seas will continue through late Monday night with a brief lull in winds in the morning hours. Seas will diminish early on Tuesday but then increase to SCA level again by Tuesday night and continue through Thursday. Winds will remain below SCA level Tuesday through Thursday and both winds and seas will be below on Friday.

For the Inner Waters south of Point Conception . SCA level winds will likely develop late on Monday and continue on Tuesday. The strongest winds will be in the afternoon and evening hours. Otherwise, conditions will remain below SCA levels through Thursday.

BEACHES. 07/207 PM.

High surf conditions of 8 to 12 feet to the Central Coast have been diminishing and will drop below advisory criteria this afternoon. Another large swell will arrive on Monday and will likely bring high surf to the area through the week.

The surf across the west facing beaches of Ventura County will be elevated this afternoon and evening but will remain below advisory criteria. Elevated surf conditions are likely again Monday through Thursday.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Winter Storm Watch in effect from Tuesday evening through Thursday evening for zones 52>54. (See LAXWSWLOX). PZ . Small Craft Advisory in effect until 3 AM PST Tuesday for zones 645-670-673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (WED-SUN).

High surf and dangerous rip currents are likely through the middle of the week. Gusty west to northwest winds will create driving and boating hazards at times through Wednesday. A winter storm will bring rain and snow to the area Wednesday and Thursday.



PUBLIC . Thompson AVIATION . Hall MARINE . Kj BEACHES . Kj SYNOPSIS . RAT

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 4 mi47 min S 4.1 G 5.1
46256 5 mi51 min 57°F3 ft
PFXC1 5 mi47 min S 4.1 G 5.1 58°F
PFDC1 6 mi53 min SSE 2.9 G 5.1
PSXC1 6 mi47 min SSW 4.1 G 5.1
AGXC1 7 mi65 min S 4.1 G 5.1 57°F 1016.2 hPa
BAXC1 7 mi59 min SSE 2.9 G 5.1
OHBC1 - 9410660 - Los Angeles, CA 8 mi47 min 60°F1018.9 hPa (+1.1)
PXAC1 8 mi53 min SSE 2.9 G 5.1
46253 12 mi51 min 58°F3 ft
46222 - San Pedro, CA (092) 13 mi56 min 59°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 27 mi47 min WSW 2.9 G 2.9 56°F 60°F1018.7 hPa (+1.1)
46221 - Santa Monica Bay, CA (028) 29 mi51 min 57°F4 ft
46268 31 mi47 min 57°F 58°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 49 mi27 min NW 1.9 G 3.9 57°F 1018.2 hPa51°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 mi49 minSSW 410.00 miPartly Cloudy56°F50°F80%1018.6 hPa
Long Beach, Long Beach Airport, CA6 mi54 minS 310.00 miFair57°F47°F69%1018.1 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi54 minS 310.00 miFair58°F46°F65%1018 hPa
Torrance, Zamperini Field Airport, CA12 mi2 hrsSSW 510.00 miMostly Cloudy57°F48°F72%1017.6 hPa
John Wayne-Orange County Airport, CA14 mi54 minS 510.00 miMostly Cloudy58°F47°F67%1018.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA18 mi54 minWSW 510.00 miOvercast57°F48°F72%1018.4 hPa
Los Angeles, Los Angeles International Airport, CA20 mi54 minWSW 610.00 miMostly Cloudy56°F48°F75%1018.2 hPa
Los Angeles / USC Campus Downtown, CA21 mi55 minN 010.00 miOvercast58°F48°F70%1018 hPa

Link to 5 minute data for KSLI

Wind History from SLI (wind in knots)
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Last 24hrS3CalmSE3E3CalmCalmCalmCalmNE3CalmCalmNE3E3CalmS6S4S3CalmSW5S9S7S8S5S4
1 day agoCalmCalmE4E3W5CalmCalmE3E3E3CalmNE4E4SE4SE5S10S5SW9S10SW12SW10SW10SW8Calm
2 days agoNW4CalmN4CalmCalmNW3CalmCalmN3CalmCalmNE4CalmNW3N4CalmSW4SW9SW6SW8W12W7W8W5

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Sun -- 02:24 AM PST     Moonrise
Sun -- 05:06 AM PST     4.24 feet High Tide
Sun -- 06:12 AM PST     Sunrise
Sun -- 12:20 PM PST     Moonset
Sun -- 01:05 PM PST     -0.23 feet Low Tide
Sun -- 05:54 PM PST     Sunset
Sun -- 07:54 PM PST     2.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.22.83.544.24.13.732.21.30.5-0-0.2-0.10.41.11.82.52.932.82.31.9

Tide / Current Tables for Long Beach, Middle Harbor, California
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Long Beach
Click for Map
Sun -- 02:25 AM PST     Moonrise
Sun -- 04:05 AM PST     5.15 feet High Tide
Sun -- 06:13 AM PST     Sunrise
Sun -- 11:53 AM PST     -0.38 feet Low Tide
Sun -- 12:21 PM PST     Moonset
Sun -- 05:54 PM PST     Sunset
Sun -- 06:53 PM PST     3.61 feet High Tide
Sun -- 11:14 PM PST     2.60 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.43.94.555.254.43.62.51.40.4-0.2-0.4-0.10.51.42.333.53.63.53.12.82.6

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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