Saturday, July11, 2020
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Marine Weather and Tides
National City, 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 5:48AMSunset 7:59PM Saturday July 11, 2020 11:53 AM PDT (18:53 UTC) Moonrise 12:00AMMoonset 11:56AM Illumination 62% 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 146 Am Pdt Sat Jul 11 2020
Today..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 11 seconds. Patchy fog with vsby 1 nm or less in the morning.
Tonight..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 7 seconds and S 2 to 3 ft at 12 seconds. Patchy fog with vsby 1 nm or less after midnight.
Sun..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 at 9 seconds and S 2 to 3 ft at 11 seconds. Patchy fog with vsby 1 nm or less in the morning.
Sun night..Wind sw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and S 2 to 3 ft at 10 seconds.
Mon..Wind sw 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 to 3 ft at 9 seconds.
Mon night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 to 3 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft and S 2 ft.
Tue night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 1 to 2 ft.
Wed..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 ft and S 1 ft.
Wed night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 1 ft.
PZZ700 146 Am Pdt Sat Jul 11 2020
Synopsis for the far southern california coast.. There's a possibility of some patchy fog over the coastal waters tonight and Saturday night, with localized visibility below 1 mile. Otherwise, no hazardous marine conditions are anticipated through Wednesday, with largely weak onshore flow prevailing over the next several days.


7 Day Forecast for Marine Location Near National City, CA
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location: 32.67, -117.12     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 111642 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 940 AM PDT Sat Jul 11 2020

SYNOPSIS. The weather will be exceptionally hot this weekend with strong high pressure over the Southwest. Coastal temperatures will be moderated by sea breezes. Increasing moisture will bring scattered high clouds and a slight chance for showers, mainly over the mountains. Temperatures will slowly trend lower early next week as the high aloft weakens. Seasonal weather will prevail later next week with a weak trough along the West Coast.

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

The hottest day of the heat wave is upon us. Temperatures at 9 AM were running 3 to 9 degrees higher than at 9 AM Friday. The San Diego Airport was 75F (+4), Ramona was 87 (+7), Ontario was 84 (+9), and Palm Springs 96 (+3). Moisture was also on the increase this morning with southeast winds around the sprawling 600 dm high over New Mexico pulling high level moisture into SoCal. The 12Z NKX sounding this morning had a Precipitable Water of 1.24" compared to 1.06" Friday morning. The biggest moisture increase was in the mountains where dew points jumped 10-30 degrees overnight, with Mt Laguna at 59F and Descanso at 56F at 8 AM. Dew points in the lower elevations were relatively unchanged since yesterday morning.

Today will be one of the hottest days of the year . so far. Inland valley highs will range from 100 in inland Orange County and the San Diego Valleys to 108 in eastern areas of the Inland Empire. Mountain highs will range from 85 at the higher elevations to 100 in the foothills. The highs deserts top out from 103-107, and the low deserts 114-118. Sunday will be another hot day, with highs only a few degrees lower than today.

There are small chances of precipitation in the mountains this weekend. Clouds over Sonora, Mexico, this morning were moving into northern Baja. Weak radar echoes over this area were moving northwest. Moisture advection into SoCal today will initiate cumulus buildups with the heat of the day, and there is a slight chance for showers over the mountains, but instability is weak with CAPE of only 100-200 J/kg. Synoptic scale subsidence associated with the 600 dm high over New Mexico and Arizona will be a limiting factor in any convection that develops.

Early next week a trough sets up along the West Coast and the upper ridge axis retreats farther east. Lowering heights, stronger onshore flow and a slowly deepening marine layer will return temperatures to their seasonal norms by midweek. Patchy dense fog may form again Sunday morning in the coastal areas, then gradually spread a little farther inland each day through Wednesday.

The weak Pacific trough retrogrades a few hundred miles westward late next week, and an upper ridge anchors near the Four Corners. This pattern remains in place through next weekend which means temperatures will be at or slightly above average, and the monsoon signal will remain fairly weak.

AVIATION. 111600Z . Coast . Mostly clear this morning with increasing SCT-BKN clouds AOA 10,000 ft MSL this afternoon into tonight. Moderate confidence of patchy low clouds returning tonight after 09Z. Bases a little lower than they were this morning with some places seeing bases 300-800 ft MSL. Look for these cigs to clear 14-16Z Sunday.

Valleys/Mountains/Deserts . Increasing SCT-BKN clouds AOA 10,000 ft MSL through later this morning. SCT CU/ISO TCU may developing over the mountain crests this afternoon with bases near 8000 ft MSL and tops to 20000 ft MSL, dissipating near sunset. Some of these mid level clouds 10,000 ft MSL will prevail through the night.

MARINE. Patchy fog slowly dissipating this morning over the coastal waters with visibility near 1 mile at times. Some of this fog may come back into the picture this evening through Sunday morning, though confidence still somewhat on the low end. Otherwise, no hazardous marine conditions are expected through Wednesday.

SKYWARN. Skywarn activation will not be needed today.

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

Heat Advisory until 8 PM PDT Sunday for Orange County Inland Areas-Riverside County Mountains-San Bernardino County Mountains-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Mountains-San Diego County Valleys-Santa Ana Mountains and Foothills.

PZ . NONE.



PUBLIC . Moede AVIATION/MARINE . APR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 4 mi60 min 72°F1014.6 hPa
TIXC1 - Tijuana River Reserve, CA 7 mi69 min NW 7 76°F 1015 hPa69°F
LJAC1 - 9410230 - La Jolla, CA 15 mi60 min N 6 G 7 70°F 68°F1015.3 hPa
LJPC1 - La Jolla, CA (073) 15 mi94 min NNW 4.1 G 7 1 ft
46254 16 mi28 min 75°F1 ft
46232 - Point Loma South, CA (191) 19 mi28 min 72°F3 ft
46258 21 mi28 min 72°F2 ft
46266 22 mi54 min 70°F 73°F2 ft
46225 - Torrey Pines Outer, CA (100) 23 mi58 min 71°F2 ft
46224 - Oceanside Offshore, CA (045) 40 mi88 min 71°F2 ft

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, North Island, Naval Air Station, CA5 mi2 hrsNW 710.00 miA Few Clouds78°F66°F67%1015.2 hPa
San Diego International Airport, CA5 mi63 minWNW 9 G 1510.00 miPartly Cloudy79°F64°F62%1015.4 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA6 mi58 minno data10.00 miFair0°F0°F%1015.3 hPa
San Diego, Brown Field Municipal Airport, CA10 mi61 minWNW 710.00 miFair84°F66°F55%1014.4 hPa
San Diego, Montgomery Field, CA11 mi61 minWNW 810.00 miFair87°F63°F45%1014.6 hPa
Gillespie Field Airport, CA14 mi67 minN 010.00 miClear90°F59°F36%1014.9 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi2 hrsNNW 610.00 miFair86°F60°F42%1014.9 hPa

Link to 5 minute data for KNZY

Wind History from NZY (wind in knots)
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Last 24hrW8W9NW8W9NW11NW11NW10NW10NW10NW9NW6NW5NW5NW6NW7NW5N6N4N5NE4N3NW3NW7NW12
1 day agoW8W7W7W7W9W96W5W6W4NW3W3W3CalmCalmCalmCalm3CalmCalm4N5NW56
2 days agoSW10SW10SW9SW10SW7SW9S5SW5S3SW3W4CalmSW3CalmS3CalmSW3CalmSW43NW4SW4SW6W6

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Sat -- 01:39 AM PDT     4.64 feet High Tide
Sat -- 05:49 AM PDT     Sunrise
Sat -- 08:46 AM PDT     0.88 feet Low Tide
Sat -- 11:55 AM PDT     Moonset
Sat -- 03:45 PM PDT     4.67 feet High Tide
Sat -- 07:58 PM PDT     Sunset
Sat -- 09:44 PM PDT     2.68 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.24.64.64.33.832.21.510.91.21.82.63.54.24.64.74.443.532.72.72.9

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Sat -- 01:52 AM PDT     -0.00 knots Slack
Sat -- 05:39 AM PDT     -1.24 knots Max Ebb
Sat -- 05:49 AM PDT     Sunrise
Sat -- 09:12 AM PDT     0.00 knots Slack
Sat -- 11:56 AM PDT     Moonset
Sat -- 12:42 PM PDT     0.92 knots Max Flood
Sat -- 04:02 PM PDT     -0.00 knots Slack
Sat -- 06:43 PM PDT     -0.72 knots Max Ebb
Sat -- 07:58 PM PDT     Sunset
Sat -- 10:07 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.3-0-0.5-0.9-1.2-1.2-1-0.6-0.10.30.70.90.90.80.40-0.4-0.7-0.7-0.6-0.3-00.2

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (14,3,4,5)
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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.