Thursday, July9, 2020
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Marine Weather and Tides
Del Mar, 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 5:47AMSunset 8:01PM Thursday July 9, 2020 2:06 AM PDT (09:06 UTC) Moonrise 11:26PMMoonset 10:05AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 146 Am Pdt Thu Jul 9 2020
Today..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 2 ft at 13 seconds.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 13 seconds.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 1 to 2 ft at 10 seconds and S 2 ft at 13 seconds.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 2 ft at 12 seconds.
Sat..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 2 ft at 11 seconds. Patchy fog with vsby 1 nm or less in the morning.
Sat night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 to 3 ft. Patchy fog with vsby 1 nm or less after midnight.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 to 4 ft. Patchy fog with vsby 1 nm or less in the morning.
Sun night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 to 4 ft.
Mon..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 to 4 ft.
Mon night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 3 ft.
PZZ700 146 Am Pdt Thu Jul 9 2020
Synopsis for the far southern california coast.. Weak to moderate onshore flow will prevail over the next week, with a coastal eddy at times through Thursday. High pressure will dominate the region.


7 Day Forecast for Marine Location Near Del Mar city, CA
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location: 32.9, -117.25     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 090439 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 939 PM PDT Wed Jul 8 2020

SYNOPSIS. Near average temperatures through Thursday with areas of night and morning coastal low clouds extending inland into the far western valleys. For Friday through the weekend, high pressure to the east will strengthen and expand bringing a period of very hot weather for inland areas for Saturday through Monday. Slow cooling is then possible into the middle of next week as the high weakens a little as a weak trough of low pressure develops near the West Coast.

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

. Update .

Some marine layer stratus is making it back onshore, mainly over Orange County but this trend is expected to continue tonight up and down the coast with movement into parts of the valleys. The forecast remains on track.

An expansive ridge will build over the Desert Southwest Friday through Monday, leading to extreme heat over the deserts. Temps could touch 120 degrees over the lower deserts and nearing 110 for the high desert where an Excessive Heat Warning is in effect.

. Previous Discussion (Issued at 147 PM PDT Wed Jul 8 2020) .

Coastal clouds went away on schedule this morning, but curiously the cloud deck off the CA coast has expanded in coverage. The coastal eddy continues and will through Thursday morning. Brisk onshore flow associated with a western US trough will produce isolated strong winds through mountain passes and into adjacent deserts this afternoon and evening. Some gusts will exceed 45 mph in the usual favored spots. The trough breaks down tonight and Thursday as a ridge of high pressure builds over the Southwest. It will become quite strong this weekend and the interior of SoCal will definitely feel the heat. Enjoy the cool of today because it will be the coolest day of the coming week. Temperatures near normal today will climb Thursday through Saturday, and this weekend reach around 5-10 degrees above normal. Some spots could hit 117 in the low desert and 107 in the high desert. An Excessive Heat Warning has now been posted for all deserts Saturday through Monday. Inland areas west of the mountains may need a heat advisory this weekend. Saturday looks like the hottest day over the entire region overall. There is an intrusion of a little monsoon moisture Friday through Sunday, but so little that there is nearly no chance of thunderstorms. But you'll probably notice some higher clouds and afternoon cumulus over the mountains. Models continue to show a stronger coastal eddy developing Saturday night, which would start a meaningful cooling trend Sunday west of the mountains, but right now it looks like cooling Sunday will probably not go too far inland. The strong ridge begins to relent Monday through Wednesday, allowing for some cooling heading into the middle of next week. It should be more noticeable in the coastal basin than in the desert.

AVIATION. 090400Z . Coast/Valleys . Stratus will move back inland over the next few hours with bases near 900-1500 ft MSL. Areas of 3-5 SM vis in BR/HZ likely in the far western valleys and higher coastal areas after 08Z. Stratus and vis restrictions clearing by about 18Z Thu.

Mountains/Deserts . Mostly clear skies with unrestricted visibility through Thursday. West wind gusts 25-35 knots on the desert mountain slopes and through San Gorgonio Pass this evening, weakening overnight.

MARINE. No hazardous marine conditions are expected through Monday.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . Excessive Heat Warning from 10 AM Saturday to 8 PM PDT Monday for Apple and Lucerne Valleys-Coachella Valley-San Diego County Deserts-San Gorgonio Pass Near Banning.

PZ . NONE.

PUBLIC . Gregoria (Update)/MM (Prev Discussion) AVIATION/MARINE . Gregoria/SS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LJAC1 - 9410230 - La Jolla, CA 2 mi55 min SE 2.9 G 4.1 63°F 73°F1011.9 hPa
46254 2 mi41 min 73°F3 ft
LJPC1 - La Jolla, CA (073) 2 mi47 min SE 2.9 G 5.1 2 ft
46266 4 mi37 min 65°F 72°F3 ft
46225 - Torrey Pines Outer, CA (100) 8 mi41 min 70°F3 ft
SDBC1 - 9410170 - San Diego, CA 13 mi55 min 70°F1012.1 hPa
46258 17 mi41 min 71°F3 ft
46224 - Oceanside Offshore, CA (045) 23 mi41 min 70°F3 ft
TIXC1 - Tijuana River Reserve, CA 23 mi82 min Calm 64°F 1013 hPa60°F
46232 - Point Loma South, CA (191) 28 mi41 min 70°F3 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, Miramar MCAS/Mitscher Field Airport, CA5 mi72 minN 010.00 miMostly Cloudy57°F54°F90%1011.8 hPa
San Diego, Montgomery Field, CA8 mi14 minN 09.00 miOvercast63°F57°F84%1012 hPa
San Diego International Airport, CA12 mi16 minVar 39.00 miOvercast65°F57°F78%1012.6 hPa
San Diego, North Island, Naval Air Station, CA14 mi15 minS 310.00 miMostly Cloudy65°F57°F78%1012 hPa
Gillespie Field Airport, CA16 mi12 minN 010.00 miFair59°F55°F88%1012.2 hPa
Carlsbad, McClellan-Palomar Airport, CA17 mi14 minESE 39.00 miOvercast63°F57°F84%1011.7 hPa
Ramona, Ramona Airport, CA20 mi14 minN 05.00 miFog/Mist53°F50°F89%1011.1 hPa
Oceanside, Oceanside Municipal Airport, CA23 mi15 minENE 36.00 miFog/Mist64°F61°F90%1011.9 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA23 mi11 minno data8.00 miOvercast0°F0°F%1012.6 hPa

Link to 5 minute data for KNKX

Wind History from NKX (wind in knots)
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Last 24hrSE3CalmCalmCalmCalmCalm4W4W5W9SW8W7SW8SW8SW8SW6SW5SW4SW3SW4W3CalmCalmCalm
1 day agoS5CalmSE3SE3SW4CalmCalmCalm3SW9SW7SW7SW8SW4W6W5NW7W6NW4CalmCalmW3CalmSE4
2 days agoCalmCalm--CalmCalmCalmCalm3SW8SW7SW9SW7SW6SW9SW6S5SW5SW4SW3W4W3CalmCalmS4

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Thu -- 05:48 AM PDT     Sunrise
Thu -- 07:07 AM PDT     0.02 feet Low Tide
Thu -- 10:06 AM PDT     Moonset
Thu -- 02:00 PM PDT     3.90 feet High Tide
Thu -- 06:47 PM PDT     2.67 feet Low Tide
Thu -- 07:59 PM PDT     Sunset
Thu -- 11:25 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.24.94.23.22.110.300.20.81.62.53.23.73.93.83.432.72.72.93.33.84.3

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Thu -- 12:23 AM PDT     -0.00 knots Slack
Thu -- 04:05 AM PDT     -1.84 knots Max Ebb
Thu -- 05:48 AM PDT     Sunrise
Thu -- 07:51 AM PDT     0.00 knots Slack
Thu -- 10:05 AM PDT     Moonset
Thu -- 11:02 AM PDT     1.12 knots Max Flood
Thu -- 02:21 PM PDT     -0.00 knots Slack
Thu -- 04:42 PM PDT     -0.70 knots Max Ebb
Thu -- 07:16 PM PDT     0.00 knots Slack
Thu -- 07:59 PM PDT     Sunset
Thu -- 10:15 PM PDT     0.73 knots Max Flood
Thu -- 11:24 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0.4-1.1-1.6-1.8-1.7-1.2-0.60.10.611.110.70.2-0.3-0.6-0.7-0.5-0.10.30.60.70.7

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 (5,6,7,8)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.