Wednesday, April8, 2020
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Marine Weather and Tides
Newport 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 6:27AMSunset 7:19PM Wednesday April 8, 2020 1:29 AM PDT (08:29 UTC) Moonrise 8:19PMMoonset 7:10AM Illumination 100% Phase: Full Moon; Moon at 15 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- 824 Pm Pdt Tue Apr 7 2020
.small craft advisory in effect through early Wednesday morning...
Tonight..NW winds 10 to 20 kt with gusts to 25 kt, becoming W 10 to 15 kt after midnight. Wind waves 2 to 5 ft. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 18 seconds. Showers likely in the evening, then chance of showers.
Wed..W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 7 seconds and S 3 ft at 17 seconds. Chance of showers. Slight chance of tstms in the afternoon.
Wed night..SW winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and S 3 ft at 16 seconds. Slight chance of tstms in the evening. Chance of showers.
Thu..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 7 seconds and S 3 ft at 16 seconds. Chance of showers.
Thu night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and S 3 ft at 15 seconds. Chance of showers in the evening, then slight chance of showers.
Fri..N winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. S swell 3 ft at 15 seconds. Slight chance of rain in the morning.
Fri night..W winds 10 to 15 kt. Wind waves 2 ft or less. S swell 2 ft at 14 seconds.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. S swell 2 ft.
Sun..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 1 ft.
PZZ600 824 Pm Pdt Tue Apr 7 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z, or 8 pm pdt, a 1014 mb low was near point conception, with a cold front over the southern coastal waters. Gusty W to nw winds will affect portions of the waters tonight, along with hazardous short period seas.


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 080436 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 930 PM PDT Tue Apr 7 2020

SYNOPSIS. A low pressure system southwest of Point Conception will move slowly move across Southern California through Friday, finally moving eastward and out of the area on Saturday. It will be cold with scattered showers Wednesday through Friday. Saturday through Monday will be mostly dry and a little warmer.

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

Bands of moderate to briefly heavy rain rolled across the area today, moving from south to north in the deep southerly flow ahead of the closed low 400 miles west of Ensenada. The updated rain totals are headlined on our webpage. Through 7 PM, Lytle Creek is still the leader with 6.54", followed by the Running Springs Fire Station with 5.92". Green Valley Lake has received the most snow so far (14").

There weren't any lightning strikes today, but the chances for thunder increase Wednesday when a number of factors combine to bring greater instability. 500 mb temperatures fall to -28C tomorrow as the cold core low moves inland. A strong shortwave ahead of the upper low (apparent on the IR satellite loop) will move across SoCal tomorrow. Surface CAPE on the 00Z NKX sounding this evening was 219 J/kg. Surface CAPE is projected to be nearly 3 times higher on Wednesday.

Wednesday and Thursday will be cold, perhaps record breaking cold. The high in El Cajon on Wednesday is forecast to be 58, which would break the record for the lowest high of 59. Other cities with potential record cold include Palm Springs (fcst of 63, record is 64) and Borrego (forecast of 61, the record is 63). Thursday will also be an unseasonably cold day.

On the synoptic scale, the latest models have slowed progression of of closed low . again. The upper low is far removed from the upper jet, so it will just sit and spin over the Southwest through Friday, and maybe Saturday. There just isn't any upstream kicker or any strong steering winds to force it eastward. The 00Z GFS and the 12Z ECMWF show a deep closed low over northern Baja Friday evening. That means it will remain colder than average through Friday with scattered showers in wrap around flow.

Snow levels near 6,000 feet today will lower to between 4,500 and 5,000 feet Wednesday and Thursday. This will be low enough for potential impacts in the San Diego County Mountains where several inches may accumulate above 5,000 feet by Thursday. Wrap around moisture will bring more snow to the mountains too. Winter Weather products may need to be extended even longer into Friday if this scenario unfolds.

AVIATION. 080400Z . Coast/Valleys/Mountains . Scattered SHRA with some SHSN in the mountains above 5500 feet MSL will continue overnight with some increase in coverage and intensity Wed. Timing of precipitation is low confidence at airports, but cigs will generally be 1300-2500 ft MSL with local vis 1-4 miles in rain through midday Wed, with some increase in cloud heights and vis Wed afternoon. Higher terrain will be obscured through Wed and beyond.

Deserts . Mostly BKN skies will prevail with scattered SHRA at times through Wed. Cloud bases will mostly be 3500-6000 ft MSL, locally lower, with local vis 3-5 miles in rain.

MARINE. The strong gusty winds from earlier this evening have ended. There is a slight chance of thunderstorms, mainly Wednesday afternoon. Otherwise, no hazardous marine weather is expected through Sunday.

BEACHES. There is a slight chance of thunderstorms producing lightning strikes Wednesday afternoon.

HYDROLOGY. Through Friday, additional rainfall is expected to range from around 0.60-1.25 inches near the immediate coast to 1-1.5 inches in the valleys, locally up to 2 inches near the foothills of the San Bernardino Mountains. 1.5 to 3.5 inches is forecast for the mountains, 1 to 1.5 inches across the high deserts, and one half to one inch in the lower deserts. There is also a slight chance of thunderstorms this afternoon and Wednesday afternoon.

A snow level near 6000 to 6500 feet this afternoon will lower to 4500 to 5000 feet for late tonight through Thursday morning, then rise to 5000 to 5500 feet Thursday afternoon. In the mountains of San Bernardino and Riverside Counties, additional snowfall of 3 to 6 inches is expected from 4500 to 5500 feet, 6 to 12 inches from 5500 to 6500 feet, 12 to 24 inches from 6500 to 7500 feet, with greater than 24 inches on the highest peaks. In San Diego County, 3 to 6 inches is possible above 5500 ft, and 1-3 inches at 5000 ft.

SKYWARN. Skywarn activation is requested at 8 AM Wednesday for reports of heavy rain, thunderstorms and flooding.

SGX WATCHES/WARNINGS/ADVISORIES. CA . Flash Flood Watch through Wednesday evening for Apple and Lucerne Valleys-Coachella Valley-Orange County Coastal Areas-Orange County Inland Areas-Riverside County Mountains- San Bernardino County Mountains-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Coastal Areas-San Diego County Deserts-San Diego County Mountains-San Diego County Valleys-San Gorgonio Pass Near Banning-Santa Ana Mountains and Foothills.

Winter Storm Warning until 5 AM PDT Friday for Riverside County Mountains-San Bernardino County Mountains.

PZ . NONE.

PUBLIC . Moede HYDROLOGY . SS AVIATION/MARINE/BEACHES . Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 14 mi59 min 60°F5 ft
46256 17 mi59 min 61°F4 ft
PRJC1 18 mi59 min WSW 2.9 G 5.1
PFXC1 19 mi59 min W 4.1 G 5.1
AGXC1 20 mi107 min WNW 1.9 G 2.9
PFDC1 20 mi107 min W 1.9 G 2.9
BAXC1 21 mi107 min S 4.1 G 4.1
OHBC1 - 9410660 - Los Angeles, CA 21 mi59 min 62°F1017.6 hPa
PSXC1 21 mi59 min Calm G 2.9
46222 - San Pedro, CA (092) 22 mi36 min 59°F4 ft
PXAC1 22 mi107 min NW 1.9 G 1.9
46224 - Oceanside Offshore, CA (045) 37 mi29 min 60°F4 ft
46221 - Santa Monica Bay, CA (028) 43 mi33 min 59°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 43 mi59 min NE 5.1 G 8 52°F 61°F1017.3 hPa

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA7 mi36 minE 410.00 miOvercast55°F48°F80%1017.1 hPa
Los Alamitos Army Airfield, CA16 mi31 minN 010.00 miMostly Cloudy51°F47°F90%1016.9 hPa
Fullerton, Fullerton Municipal Airport, CA20 mi36 minSE 310.00 miOvercast53°F48°F83%1016.6 hPa
Long Beach, Long Beach Airport, CA21 mi36 minN 010.00 miMostly Cloudy50°F46°F89%1016.8 hPa

Link to 5 minute data for KSNA

Wind History from SNA (wind in knots)
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Last 24hrCalmNE3E3CalmCalmCalmN3N4N3CalmCalmCalmE5SE3NE5NE4SE11
G18
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W7N5CalmCalmCalmE4
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S14S9S10S9SW7W5SW5S5SW5SW4CalmCalmE5E5E4Calm
2 days agoS3SE4S6SE5E6SE63SE5SE8S5SW7S9SW9S11S14SW12
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Tide / Current Tables for Balboa Pier, Newport Beach, California
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Balboa Pier
Click for Map
Wed -- 04:09 AM PDT     -0.63 feet Low Tide
Wed -- 06:29 AM PDT     Sunrise
Wed -- 07:09 AM PDT     Moonset
Wed -- 10:10 AM PDT     5.07 feet High Tide
Wed -- 04:14 PM PDT     0.04 feet Low Tide
Wed -- 07:17 PM PDT     Sunset
Wed -- 08:19 PM PDT     Moonrise
Wed -- 10:17 PM PDT     5.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.82.40.9-0.1-0.6-0.30.623.54.65.14.842.81.60.50.10.31.12.545.25.85.6

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Wed -- 05:21 AM PDT     -0.39 feet Low Tide
Wed -- 06:29 AM PDT     Sunrise
Wed -- 07:10 AM PDT     Moonset
Wed -- 11:19 AM PDT     4.39 feet High Tide
Wed -- 05:26 PM PDT     0.03 feet Low Tide
Wed -- 07:18 PM PDT     Sunset
Wed -- 08:20 PM PDT     Moonrise
Wed -- 11:26 PM PDT     5.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.43.62.31.10.1-0.4-0.30.51.62.83.84.44.33.62.61.50.60.10.10.81.93.24.34.9

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
Wind Forecast for San Diego, CA (4,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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Disclaimer:
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.