Monday, July6, 2020
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Marine Weather and Tides
Potrero, 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 5:45AMSunset 7:56PM Monday July 6, 2020 1:17 PM PDT (20:17 UTC) Moonrise 9:34PMMoonset 7:07AM Illumination 98% 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 156 Am Pdt Mon Jul 6 2020
Today..Wind S 5 to 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 3 ft at 15 seconds. Areas of visibility of 1 mile or less this morning.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 9 seconds and S 3 ft at 14 seconds.
Tue..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 9 seconds and S 2 to 3 ft at 14 seconds.
Tue night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 9 seconds and S 2 to 3 ft at 14 seconds.
Wed..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 9 seconds and S 2 ft at 14 seconds.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 ft.
PZZ700 156 Am Pdt Mon Jul 6 2020
Synopsis for the far southern california coast.. Visibilities of less than 1 nautical mile are possible over the inner waters this morning due to a shallow marine layer. The shallow marine layer will slowly deepen through Thursday. Winds over the coastal waters will be generally light this week with a weak coastal eddy in place.


7 Day Forecast for Marine Location Near Potrero, CA
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location: 31.69, -116.65     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 061603 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 903 AM PDT Mon Jul 6 2020

SYNOPSIS. High pressure will continue the hot inland weather today. Cooler weather Tuesday through Thursday as a trough of low pressure moves inland to the north. Night and morning low clouds and fog will spread farther inland into portions of the western valleys for the middle of the week. Friday through the weekend, high pressure will strengthen across the southwest states bringing much warmer weather.

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

Our low cloud deck this morning extended into coastal mesa territory producing some dense fog. This has since cleared out and skies will be mostly sunny today. The satellite loop and some surface winds are indicating that a coastal eddy is already underway. Our high pressure ridge will relent under a trough of low pressure that will be sagging down from the north Tuesday through Thursday. This should strengthen and maintain a coastal eddy, allowing coastal clouds to extend farther inland each night and morning through Thursday morning, which would mean patchy dense fog in the western partso of valleys. It will also bring cooler weather inland after today's heat. The trough will also boost winds in the usual mountain- desert corridors Tuesday afternoon and evening, where top gusts in the top spots should exceed 40 mph. On Thursday and Friday the trough retreats and a high pressure ridge expands over the Southwest. This will bring a warming trend Friday through at least Sunday. How much warmer is still not certain; heat will be determined by the strength of the ridge over SoCal and how dry the air mass is. Starting Friday, models agree to bring in some moisture northward out of Mexico, but disagree on how much. That will affect how hot inland areas could get; more moisture means a cap on climbing temps. It also means we're starting to think about chances of thunderstorms. For now, we're planning on a hotter, drier scenario, so temps are way up there, flirting with high heat risk that would warrant a heat hazard statement of some kind. Also for now, chances of thunderstorms in the mountains and deserts are not high enough to forecast yet. Stay tuned to our forecast as we should gain more confidence in these two weekend weather elements in coming days.

AVIATION. 061530Z . Coastal Areas . Patchy low clouds and fog along the coast are clearing at this hour. Cloud bases are 200-400 ft MSL with tops to 900 ft MSL. Local vis 3-5 miles on elevated coastal terrain. Expect clearing to the beaches by 17Z. Low clouds likely returning after 05Z with bases from 400-800 ft.

Inland Valleys/Mountains/Deserts . Mostly clear with unrestricted visibility through Tuesday.

MARINE. No hazardous marine conditions are expected through Friday.

BEACHES. High Surf Advisory in effect until Noon today. Fading south- southwest swell will still generate surf of 5-7 feet this morning, primarily on the beaches of Orange and northern San Diego Counties. Surf will subside to 3 to 5 feet most areas this afternoon and evening.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory until noon PDT today for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ . NONE.



PUBLIC . MM AVIATION/MARINE/BEACHES . PG


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 66 mi93 min SW 6 71°F 1013 hPa65°F
SDBC1 - 9410170 - San Diego, CA 76 mi48 min 69°F1012.1 hPa

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, Brown Field Municipal Airport, CA64 mi25 minWNW 710.00 miFair82°F60°F47%1011.5 hPa

Link to 5 minute data for KSDM

Wind History from SDM (wind in knots)
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Last 24hrW8NW7
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NW75W5W5NW4W4CalmCalmCalmE5SE5NW3N3CalmSE3CalmCalmCalmNW5W8NW6W7
1 day agoNW8W8W8NW76W6NW4NW4CalmCalmCalmCalmCalmNE3E4CalmCalmCalmCalmCalm3W5W11W9
2 days agoNW7W8W9W7W11W11W5CalmW3S3W3CalmCalmCalmCalmCalmCalmCalmCalm3W45W8W9

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
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Ensenada
Click for Map
Mon -- 05:03 AM PDT     -0.32 meters Low Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 07:06 AM PDT     Moonset
Mon -- 11:34 AM PDT     1.15 meters High Tide
Mon -- 04:04 PM PDT     0.65 meters Low Tide
Mon -- 07:55 PM PDT     Sunset
Mon -- 09:33 PM PDT     Moonrise
Mon -- 10:23 PM PDT     1.85 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.510.50.1-0.2-0.3-0.200.30.711.11.110.90.70.70.70.91.11.41.71.81.8

Tide / Current Tables for Imperial Beach, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (16,3,4,5)
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Ground Weather Radar Station San Diego, 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.