Sunday, August9, 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 6:06AMSunset 7:36PM Sunday August 9, 2020 1:23 PM PDT (20:23 UTC) Moonrise 11:17PMMoonset 11:32AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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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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 091532 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 831 AM PDT Sun Aug 9 2020

SYNOPSIS. A weak trough along the California Coast will keep seasonally dry and warm Summer weather in place through midweek. The trough will be replaced by a building ridge over the Southwest later this week, bringing a warming trend that will create heat wave conditions inland by next weekend. Onshore flow should still moderate coastal areas, but even there, temperatures will likely be above average.

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

Marine stratus was widespread this morning offshore and extended inland up to 25 miles over western San Diego County. Much of northern O.C. was clear. Inland, skies were clear. The 12Z Miramar sounding had a 8C inversion based near 1550FT with light and variable winds up through 15K FT. Weak onshore sfc pressure gradients were sufficient for westerly winds of 15-20 MPH and gusts 30-35 MPH through the San Gorgonio Pass. The cloud deck is fairly thin and should burn off quickly this morning. The forecast looks on track.

A weak trough along the CA Coast will maintain fair and seasonally warm Summer weather early this week with areas of night and morning low clouds extending into the western valleys. By midweek, a transition to warmer weather will be underway as the trough weakens and a ridge of high pressure builds over the Southwest. By next weekend, a strong high pressure center aloft will be centered over the Lower Colorado River Valley. Daytime temperatures then could be ten degrees Fahrenheit or more above average over the valleys and deserts. Onshore flow should maintain moderate conditions over coastal areas based on the current forecast pattern, but a shallow marine layer will increase the chances for areas of dense fog later this week.

Some high-level moisture may get pulled over the region around midweek, otherwise fair and dry conditions will prevail into next week with areas of coastal low clouds and fog at times.

AVIATION. 091515Z . Coast/Valleys . BKN010-013 tops 017 in the coastal zone clearing through 17Z After 17Z. clear skies through early evening. BKN-OVC010-013 returning to the coastal zones after 05Z and spreading 10-15 miles inland through 13Z Monday. Clouds clearing back to the coast by 17Z Monday.

Mountains/Deserts . Mostly clear with unrestricted visibility except for smoke from the Apple Fire that will drift over the eastern San Bernardino County mountains and deserts.

MARINE. No hazardous marine weather is expected through Wednesday.

BEACHES. A building south swell will bring higher surf and stronger rip currents to the beaches Monday through Wednesday. Surf will be from 3-5 feet with some sets to 6 feet in Orange County and northern San Diego County. The surf will not be quite as large in southern San Diego County, generally 3-4 feet.

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 . 10 AVIATION/MARINE . Moede


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 66 mi99 min WNW 7 72°F 1015 hPa63°F
SDBC1 - 9410170 - San Diego, CA 76 mi54 min 71°F1014.3 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 mi31 minWNW 810.00 miFair76°F61°F60%1013.9 hPa

Link to 5 minute data for KSDM

Wind History from SDM (wind in knots)
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Last 24hrW8W7NW7W9W8W7W6W4W3W3W3CalmCalmCalmCalmCalmCalmNE3NE3CalmNW5W6W6W8
1 day agoNW8W7NW7W7W6W8W5CalmW3CalmCalmCalmCalmE3CalmE3CalmCalmCalmCalm4W66NW8
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W7W75W4W5W4SW3W3CalmCalmCalmCalmCalmNE3CalmNE3CalmNE3Calm5W9NW8

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
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Ensenada
Click for Map
Sun -- 12:32 AM PDT     1.19 meters High Tide
Sun -- 06:07 AM PDT     Sunrise
Sun -- 07:01 AM PDT     0.40 meters Low Tide
Sun -- 11:31 AM PDT     Moonset
Sun -- 01:45 PM PDT     1.25 meters High Tide
Sun -- 07:35 PM PDT     Sunset
Sun -- 08:01 PM PDT     0.67 meters Low Tide
Sun -- 11:15 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.21.10.90.80.60.40.40.40.60.70.91.11.21.21.21.10.90.80.70.70.70.80.9

Tide / Current Tables for Ensenada, Baja California Norte, Mexico (2)
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Ensenada
Click for Map
Sun -- 12:26 AM PDT     1.15 meters High Tide
Sun -- 06:07 AM PDT     Sunrise
Sun -- 06:57 AM PDT     0.36 meters Low Tide
Sun -- 11:31 AM PDT     Moonset
Sun -- 01:41 PM PDT     1.19 meters High Tide
Sun -- 07:35 PM PDT     Sunset
Sun -- 07:54 PM PDT     0.63 meters Low Tide
Sun -- 11:15 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.110.90.70.50.40.40.40.50.70.91.11.21.21.110.90.70.70.60.70.70.8

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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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.