Thursday, April22, 2021
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Marine Weather and Tides
El Segundo, 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 6:12AMSunset 7:31PM Thursday April 22, 2021 7:21 AM PDT (14:21 UTC) Moonrise 2:44PMMoonset 3:47AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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- 210 Am Pdt Thu Apr 22 2021
Today..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 to 3 ft at 10 seconds and S 2 ft at 15 seconds. Slight chance of rain.
Tonight..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 4 ft at 9 seconds.
Fri..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 7 seconds and S 3 ft at 18 seconds.
Fri night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 3 ft at 18 seconds.
Sat..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 to 3 ft at 6 seconds and S 3 ft at 17 seconds.
Sat night..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 6 seconds and S 3 ft at 17 seconds.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft. Slight chance of rain.
Mon..W winds 10 to 20 kt. Wind waves 2 to 3 ft. Mixed swell W 2 to 4 ft and S 3 ft. Chance of rain.
PZZ600 210 Am Pdt Thu Apr 22 2021
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 1029 mb high pressure center was located 550 nm W of eureka and a 1002 mb low was near las vegas.


7 Day Forecast for Marine Location Near El Segundo, CA
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location: 33.91, -118.43     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 221045 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 345 AM PDT Thu Apr 22 2021

SYNOPSIS. 22/223 AM.

Strong onshore flow and a deep marine layer will remain in place today. Drizzle or light rain will be possible today. A slight warming trend will develop for Friday and Saturday as onshore flow weakens and the marine layer thins. A storm system originating from Gulf of Alaska could bring rain and mountain snow to the area between Sunday and Monday night. A warming trend is possible for the middle portion of next week.

SHORT TERM (TDY-SAT). 22/318 AM.

The latest satellite imagery shows an upper-level trough draped over the region this morning. A deep marine layer remains in place across the area and clouds are well-entrenched. Clouds are filling back in across the area, and the only cloud free areas are the interior portions of the area and the Santa Barbara South Coast and Santa Barbara Channel. Clouds are expected to fill in across the channel and into the Santa Barbara area as the morning progresses. The trough is interacting with the deep marine layer and bringing light rain or measurable drizzle to the coastal slopes of the San Gabriel mountains this morning. Drizzle or light rain is possible for the southern areas today where the most favorable flow pattern and instability is placed. Another cool day is expected today with clouds struggling to clear from the land mass.

Onshore flow will remain in place across the area through Saturday, but onshore flow will weaken and the marine layer will thin some as ridging aloft builds in. A warming and drying trend will develop for Friday and Saturday. The best warming will take place across the interior portions of the area. Closer to the coast, the warming trend will be moderated some as the ridge will likely strengthen the marine inversion, setting up a May Gray like pattern for Friday, and maybe Saturday. The stronger marine inversion will inhibit low clouds and fog from mixing out. Clouds will likely hug the coast for Friday afternoon, and maybe Saturday afternoon.

LONG TERM (SUN-WED). 22/314 AM.

The model solutions are starting to fall inline now, and Sunday and Monday is trending wetter. A majority of the global ensemble members indicate rain between Sunday and Monday night across the region. All the Canadian ensemble members have a wet forecast, a vast majority (except for a few solutions) of the ECMWF ensemble members are wet, and now the GEFS members are following suit. GEFS members are still drier, but more than half have a wet forecast for early next week. With this in mind, the forecast now mentions either rain likely or categorical rain for between late Sunday up north and Monday farthest south. Though still early and numbers could change, rainfall amounts look to range between 0.25 and 0.50 inch for coast and valleys with up to 1.00 inch along the coastal slopes of the mountains. Much less amounts, around a tenth of an inch are expected across the desert. Only a few ensemble members are producing amounts between 0.75 inch and 1.25 inch across the coast and valley areas. Most are falling in the range listed above.

Timing is still uncertain at this point, but confidence is high for a band of light to moderate rainfall for about three to six hours around the period when the highest PoPs are forecast. Timing should get hammered out as we get in the window of the higher resolution models over the next 24-48 hours. If planning to commute to work or school on Monday, plan for a wet commute, especially for the Southland.

Snow levels still look to remain around 6000 feet or above with this system. Only a two GEFS members bring snow down to the Grapevine portion of Interstate 5, while all the remaining GEFS, GEM, and ECMWF members keep snow levels higher. Based upon the latest QPF, early snowfall estimates would place 2-4 inches of snow above 6500 feet with local amounts to 6 inches on the favored peaks above 7500 feet.

Ridging aloft will build in for the middle portion of next week and bring some warming. Onshore flow does look to strengthen after Wednesday and bring a deeper marine layer for late next week.

AVIATION. 22/1045Z.

At 1030Z, the marine inversion at KLAX was based at 4900 feet. The top of the inversion was 7000 feet with a temperature of 7 degrees Celsius.

Overall, moderate confidence in 12Z TAF package. MVFR CIGs (015-025) will continue at all coastal/valley sites through the morning. For the afternoon, expect skies to generally remain BKN with CIGs at VFR levels. For tonight, expect near repeat with MVFR CIGs at all coastal/valley sites.

For the desert TAFs, CAVU conditions are anticipated through the period. Gusty westerly winds will develop late this morning and continue into the evening hours.

KLAX . Moderate confidence in 12Z TAF. Timing of change from MVFR to VFR CIGs could be +/- 3 hours of current 21Z forecast. No significant easterly wind component is expected.

KBUR . Moderate confidence in 12Z TAF. Timing of change from MVFR to VFR CIGs could be +/- 3 hours of current 21Z forecast.

MARINE. 22/116 AM.

For the Outer Waters, moderate to high confidence in current forecast. There is a 30% chance of Small Craft Advisory (SCA) level winds this afternoon and evening. On Friday, high confidence in winds and seas remaining below SCA levels. On Saturday, there is a 50% chance of SCA level winds across PZZ673/676. On Sunday, winds will diminish below SCA levels. However on Monday, there is a 50% chance of SCA level winds across all the Outer Waters.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. High confidence in winds and seas remaining below SCA levels through Sunday. On Monday, there is a 20-30% chance of SCA level winds in the afternoon and evening hours.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. High confidence in winds and seas remaining below SCA levels through Sunday. On Monday, there is a 30-40% chance of SCA level winds in the afternoon and evening hours.

BEACHES. 21/821 PM.

The first south swell of the Spring season is expected to arrive Friday morning and will continue through the weekend. The swell heights will be in the neighborhood of 3 to 4 feet, and along with periods of 18-20 seconds should produce breakers of 4 to 7 feet, highest on south facing beaches. There is a 60 percent chance of breakers reaching the minimum criteria of a High Surf Advisory (7 feet).

LOX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory in effect until 9 PM PDT this evening for zone 59. (See LAXNPWLOX). PZ . NONE.

.HAZARD POTENTIAL OUTLOOK (SAT-WED).

Strong rip currents are likely and high surf is possible at area beaches Friday and Saturday. Rain and mountain snow above 5500 feet is possible between Sunday and Monday.



PUBLIC . Hall AVIATION . RAT MARINE . RAT BEACHES . Smith SYNOPSIS . Hall

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 8 mi51 min WSW 7 G 8 57°F 62°F1014.3 hPa
46268 11 mi51 min 57°F 61°F2 ft
46221 - Santa Monica Bay, CA (028) 12 mi55 min 62°F4 ft
PXAC1 13 mi63 min SW 2.9 G 4.1
BAXC1 14 mi69 min SW 5.1 G 6
PSXC1 15 mi51 min WSW 2.9 G 4.1
OHBC1 - 9410660 - Los Angeles, CA 16 mi51 min 61°F1014.4 hPa
PFDC1 16 mi63 min SSW 5.1 G 7
PFXC1 16 mi51 min SW 4.1 G 5.1 60°F
AGXC1 17 mi63 min WSW 4.1 G 5.1 59°F 1011 hPa
PRJC1 18 mi51 min SW 4.1 G 6
46256 19 mi55 min 60°F3 ft
46222 - San Pedro, CA (092) 21 mi60 min 61°F3 ft
46253 27 mi55 min 61°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 34 mi41 min WSW 5.8 G 7.8 56°F 62°F1014 hPa51°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, CA3 mi28 minW 69.00 miOvercast57°F50°F78%1013.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi28 minW 310.00 miOvercast58°F49°F72%1013.9 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi30 minSW 510.00 miOvercast57°F49°F74%1013.7 hPa
Torrance, Zamperini Field Airport, CA9 mi34 minWSW 57.00 miOvercast57°F54°F88%1013.9 hPa
Los Angeles / USC Campus Downtown, CA11 mi29 minN 010.00 miOvercast59°F49°F69%1013.6 hPa
Long Beach, Long Beach Airport, CA16 mi28 minSW 510.00 miOvercast59°F48°F67%1013.8 hPa
Burbank - Bob Hope Airport, CA20 mi28 minS 310.00 miOvercast55°F47°F74%1012.8 hPa
Van Nuys, Van Nuys Airport, CA21 mi30 minN 010.00 miOvercast57°F47°F69%1012.9 hPa
Los Alamitos Army Airfield, CA22 mi23 minSSW 310.00 miOvercast58°F51°F77%1014.2 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi28 minVar 310.00 miOvercast60°F50°F70%1013.5 hPa

Link to 5 minute data for KLAX

Wind History from LAX (wind in knots)
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Last 24hrSE6SE4SW7W9SW8W11W10W13W9SW9W12W8W7W6W5W5W7W7W5W3W4W5W6W6
1 day agoNE6E8S8CalmSE855SW11W9W7W9W7SW7SE3SE7E5E7SE6SE9E9E9E9SE7SE6
2 days agoNE4E3SE5W7W10W12W10SW12W11W13W11SW9W14W6S4SW3S6SW4W3CalmCalmE3SE4E6

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Thu -- 12:47 AM PDT     2.15 feet Low Tide
Thu -- 03:47 AM PDT     Moonset
Thu -- 06:14 AM PDT     Sunrise
Thu -- 06:24 AM PDT     4.31 feet High Tide
Thu -- 01:16 PM PDT     -0.14 feet Low Tide
Thu -- 02:44 PM PDT     Moonrise
Thu -- 07:30 PM PDT     Sunset
Thu -- 07:53 PM PDT     4.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.22.42.83.444.34.23.83210.3-0.1-00.61.52.53.444.23.93.32.6

Tide / Current Tables for Santa Monica, Municipal Pier, California (2)
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Santa Monica
Click for Map
Thu -- 12:40 AM PDT     2.24 feet Low Tide
Thu -- 03:47 AM PDT     Moonset
Thu -- 06:14 AM PDT     4.39 feet High Tide
Thu -- 06:14 AM PDT     Sunrise
Thu -- 01:09 PM PDT     -0.14 feet Low Tide
Thu -- 02:44 PM PDT     Moonrise
Thu -- 07:30 PM PDT     Sunset
Thu -- 07:43 PM PDT     4.29 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.32.533.64.14.44.33.82.91.90.90.2-0.100.71.62.73.64.24.33.93.32.6

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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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