Thursday, October21, 2021
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Marine Weather and Tides
Newport Beach, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 7:00AMSunset 6:11PM Thursday October 21, 2021 3:03 PM PDT (22:03 UTC) Moonrise 7:01PMMoonset 7:56AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 915 Am Pdt Thu Oct 21 2021
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 4 to 6 ft at 11 seconds.
Tonight..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft at 13 seconds subsiding to 3 to 5 ft late. Patchy fog after midnight.
Fri..NW winds 5 to 10 kt, becoming W 10 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 1 to 3 ft. W swell 3 to 5 ft at 8 seconds. S swell 2 ft in the morning. Patchy fog in the morning.
Fri night..W winds 10 to 20 kt with local gusts to 25 kt. Wind waves 2 to 4 ft. W swell 4 to 6 ft at 7 seconds. Patchy fog after midnight.
Sat..W winds 15 to 20 kt, becoming 10 to 15 kt in the afternoon. Wind waves 2 to 3 ft. W swell 4 to 6 ft at 8 seconds. Patchy fog in the morning.
Sat night..W winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 3 to 5 ft at 8 seconds. Patchy fog after midnight.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog. Chance of rain.
Mon..SW winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft. Rain likely.
PZZ600 915 Am Pdt Thu Oct 21 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z, or 9 am pdt, a 950 mb surface low was 500 nm W of seattle with a cold front extending to the south of the low center across the eastern pacific. This front will approach the coastal waters on Friday and Saturday. Building seas are expected Friday through early next week.


7 Day Forecast for Marine Location Near Newport Beach, CA
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location: 33.59, -117.91     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 212009 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 109 PM PDT Thu Oct 21 2021

SYNOPSIS. Warmer conditions are in store today, with weak high pressure aloft over the southwest. Onshore flow will strengthen Friday through the weekend, which will spread cooling inland and deepen the marine layer. Patchy night and morning coastal low clouds and fog will become more extensive and extend inland onto the coastal slopes of the mountains for the weekend. A low pressure system moving through California will spread rain across the area on Monday. Then dry and warmer for the middle of next week.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

At 1 PM, skies were mostly clear across Southern California. Temperatures are running about 2 to 8 degrees warmer than this time yesterday. Greater low cloud coverage is expected tonight, with low clouds reaching into coastal areas and locally into portions of the western valleys.

A weak shortwave will pass to our north Friday and Saturday, strengthening onshore flow and spreading cooler temperatures inland. Marine layer clouds will become more widespread and extensive Friday night into Saturday morning, reaching inland onto the coastal slopes of the mountains. The marine layer may be deep enough for some patchy drizzle to fall Saturday morning. Little, if any, accumulation is expected.

A deeper and more amplified trough is slated to impact California late this weekend and early next week, bringing widespread rainfall to the state. This trough will push south into central California early Monday and tap into atmospheric river moisture from the west. The atmospheric river will first impact central California, then weaken as it pushes southeast into SoCal on Monday. Higher rainfall totals are expected for central California, but we will still see widespread precipitation in SoCal on Monday. Broad southwest flow will enhance the upslope flow and the rainfall amounts in the San Bernardino mountains, where 1 to locally 1.5 inches of precipitation is forecast. In the Inland Empire and Orange County, rainfall amounts of 0.30 to 0.75 inches are forecast. Further south into San Diego County, much less rainfall is forecast, with only 0.10 to 0.30 inch expected, locally up to 0.50 inch in the San Diego mountains. Little, if any, measurable rainfall is expected in the lower deserts.

Cluster analysis is coming into better alignment on the timing of this trough, but there is still a good amount of spread in the amplitude of the trough. The amplitude and position of this trough will be important in how much rainfall SoCal ends up receiving. The wettest ECMWF members are not quite as wet on the latest runs. Overall, forecast rainfall amounts have not changed much in the last day. Amounts are likely to change as we get closer to the event and models come into better alignment.

This trough will tap into warm, subtropical atmospheric river moisture, so snow levels will remain quite high with this system, generally above 9,000 feet. Snow levels will drop to around 7,500 feet Tuesday morning once the system passes, but little, if any, precipitation will fall during that time. So this will be an all rain event for the mountain communities. A dusting of snow may occur on the highest peaks of the San Bernardino Mountains. Gusty southwest to west winds are expected with this system on Monday, with gusts to 40 mph possible through the passes and on the desert mountain slopes.

The trough will exit to the east on Tuesday, with a weak ridge building in behind it. This will bring dry conditions and a warming trend for the middle of next week. Periods of weak offshore flow are possible towards the middle to end of next week.

AVIATION. 212000Z . Except for mostly SCT clouds at/above 20000 feet MSL, clear skies with unrestricted vis will continue this afternoon. Some low clouds, with bases around 1000 feet MSL, will develop near the coast this evening after 03Z, which should reach SAN/CRQ/SNA after 05Z and spread locally 10-15 miles inland by sunrise Friday. Low clouds and fog are not expected to reach KONT or KSBD. Expect clearing to the coast 16Z-19Z Friday.

MARINE. No hazardous marine conditions are expected through Sunday, although a few gusts around San Clemente Island could exceed 20 knots late Friday through Saturday. Stronger winds and higher seas are expected with a storm system arriving Monday. Stay informed with the Coastal Waters Forecast and any other hazard messages that may be issued.

BEACHES. A series of west-northwest swells will boost surf and rip current risk today, Saturday, and again late Monday through Wednesday. Highest surf and rip current risk will be in southern San Diego County. Stay informed with the Surf Zone Forecast and any other hazard messages that may be issued.

SKYWARN. Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . NONE.

PUBLIC . Connolly AVIATION/MARINE/BEACHES . PG


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 14 mi38 min 64°F4 ft
46256 17 mi38 min 62°F3 ft
PRJC1 18 mi46 min WSW 16G18
PFXC1 19 mi46 min SW 8.9G12 67°F
AGXC1 20 mi52 min WSW 12G16 64°F 1015.7 hPa
PFDC1 20 mi58 min SSW 9.9G13
BAXC1 21 mi52 min S 8G11
OHBC1 - 9410660 - Los Angeles, CA 21 mi46 min 61°F1017.9 hPa
PSXC1 21 mi46 min SSW 6G8.9
46222 - San Pedro, CA (092) 22 mi38 min 65°F4 ft
PXAC1 22 mi58 min SSW 6G7
46224 - Oceanside Offshore, CA (045) 37 mi38 min 66°F4 ft
46221 - Santa Monica Bay, CA (028) 43 mi38 min 62°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 43 mi46 min W 8G8 62°F 62°F1018.7 hPa
46268 46 mi64 min 63°F 62°F2 ft

Wind History for Los Angeles Pier J, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA7 mi71 minSSW 510.00 miA Few Clouds75°F51°F43%1017.6 hPa
Los Alamitos Army Airfield, CA16 mi66 minS 810.00 miA Few Clouds74°F58°F58%1017.9 hPa
Fullerton, Fullerton Municipal Airport, CA20 mi71 minVar 610.00 miFair79°F53°F41%1017.2 hPa
Long Beach, Long Beach Airport, CA21 mi71 minSSW 710.00 miFair73°F53°F50%1017.8 hPa

Link to 5 minute data for KSNA

Wind History from SNA (wind in knots)
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Last 24hrSW6W6SW6SW5W30NW300000000NE3000SW4S4S76SW5
1 day agoS9SW8SW7S8S4S400000000000S30NW450SW4SW6
2 days agoSW7SW11W6SW5S6S4SE3E5S4SE4E3N3E40NE4NE50N4E335NW30S10

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California (2)
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Newport Bay Entrance
Click for Map
Thu -- 03:43 AM PDT     1.31 feet Low Tide
Thu -- 07:01 AM PDT     Sunrise
Thu -- 07:56 AM PDT     Moonset
Thu -- 09:53 AM PDT     5.63 feet High Tide
Thu -- 04:35 PM PDT     0.21 feet Low Tide
Thu -- 06:10 PM PDT     Sunset
Thu -- 07:00 PM PDT     Moonrise
Thu -- 10:44 PM PDT     4.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Thu -- 04:56 AM PDT     0.81 feet Low Tide
Thu -- 07:02 AM PDT     Sunrise
Thu -- 07:56 AM PDT     Moonset
Thu -- 10:55 AM PDT     4.82 feet High Tide
Thu -- 05:48 PM PDT     0.13 feet Low Tide
Thu -- 06:10 PM PDT     Sunset
Thu -- 07:01 PM PDT     Moonrise
Thu -- 11:46 PM PDT     3.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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GEOS Local Image of Southwest    EDIT
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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