Saturday, July11, 2020
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Marine Weather and Tides
Costa Mesa, 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 5:49AMSunset 8:05PM Saturday July 11, 2020 1:52 PM PDT (20:52 UTC) Moonrise 12:00AMMoonset 11:59AM Illumination 61% 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 834 Am Pdt Sat Jul 11 2020
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. S swell 2 ft at 11 seconds. Patchy dense fog, with vsby 1 nm or less.
Tonight..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 2 ft at 12 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Sun..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 3 ft at 11 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Sun night..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 3 ft at 10 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Mon..Winds variable 10 kt or less, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 3 ft at 9 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Mon night..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 8 seconds and S 3 ft at 10 seconds. Patchy fog after midnight.
Tue..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
Wed..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft. Patchy fog.
PZZ600 834 Am Pdt Sat Jul 11 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z, or 8 am pdt, a 1025 mb high pressure was centered centered 600 nm west of san francisco, while a 1008 mb was centered over southern nevada and a 1008 mb thermal low was located over southern nevada. The high will strengthen some over the next few days. Dense fog with very low visibility will persist into early next week. Steep and hazardous seas will develop across the coastal waters through the coming week.


7 Day Forecast for Marine Location Near Costa Mesa, CA
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location: 33.63, -117.96     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 112050 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 150 PM 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 somewhat moderated by sea breezes. Increasing moisture aloft will bring occasional 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 .

There was a lot of hot air over the Southwest today, with record breaking heat in some areas. Ramona reached 101 at 1 PM, which eclipsed the previous record of 100 set in 1983. Other records that are within reach today include Riverside (105) and El Cajon (99). A Record Report will be issued around 5:30 PM. Other noteworthy temperatures at 1 PM: Escondido (98), Hemet (104), Palm Springs (113), and Apple Valley (103). The sea breeze moderated temperatures near the coast where the San Diego Airport was 79.

High clouds were streaming in from the southeast today around the the southwestern edge of the 600 dm high over New Mexico. Cloud growth was stunted due to weak instability, and virga is all that has been reported so far. A few light showers are possible through the evening as the cloud band moves north from San Diego County into San Bernardino County. The 12Z NKX sounding this morning had a Precipitable Water of 1.24" compared to 1.06" Friday morning.

Sunday will be another hot day, not too much different than today. The lower deserts may be a degree or two hotter, and the coastal and valley areas may be a degree or two cooler as the upper high begins to relent. But overall it will be a scorcher. There isn't any indication of an MCS forming yet over Sonora, Mexico, which is where the debris clouds over San Diego and Riverside County came from. If that doesn't materialize then it would be a sunnier day in these areas.

There are small chances of precipitation through Sunday, mainly in the mountains, but most areas will only see virga. Weak radar echoes dissipated as they moved from northern Baja into San Diego County, and cumulus buildups over the San Bernardino Mountains showed very little vertical growth today. Shower chances are small due to weak instability and synoptic scale subsidence associated with the upper high over New Mexico and Arizona.

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. 112025Z . Coast . SCT-BKN clouds AOA 15,000 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 14-15Z Sunday.

Valleys/Mountains/Deserts . 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 15,000 ft MSL will prevail through the night and into Sunday morning.

MARINE. Patchy fog for portions of the coastal waters this evening through Sunday morning, though confidence still somewhat on the low end. Some areas may experience visibility of less than 1 nm. Otherwise, no hazardous marine conditions are expected through Wednesday.

SKYWARN. Skywarn activation will not be needed this weekend.

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
46253 12 mi87 min 70°F3 ft
46256 14 mi57 min 67°F2 ft
PRJC1 14 mi59 min W 13 G 14
AGXC1 16 mi101 min SW 12 G 17
PFXC1 16 mi59 min WSW 6 G 8
PFDC1 17 mi107 min SW 4.1 G 4.1
PSXC1 17 mi59 min ESE 1 G 5.1
BAXC1 18 mi101 min N 8 G 11
OHBC1 - 9410660 - Los Angeles, CA 18 mi59 min 66°F1015.4 hPa
46222 - San Pedro, CA (092) 19 mi33 min 70°F3 ft
PXAC1 19 mi101 min NW 9.9 G 13
46221 - Santa Monica Bay, CA (028) 39 mi60 min 71°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 39 mi59 min WSW 6 G 7 67°F 68°F1016.5 hPa
46224 - Oceanside Offshore, CA (045) 41 mi87 min 72°F2 ft

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, CA6 mi60 minW 410.00 miA Few Clouds87°F63°F45%1014.3 hPa
Los Alamitos Army Airfield, CA12 mi55 minWSW 710.00 miA Few Clouds88°F62°F43%1015.2 hPa
Fullerton, Fullerton Municipal Airport, CA17 mi60 minSW 710.00 miA Few Clouds94°F63°F36%1014.2 hPa
Long Beach, Long Beach Airport, CA17 mi60 minWSW 810.00 miFair91°F62°F38%1014.5 hPa
Torrance, Zamperini Field Airport, CA23 mi66 minW 1110.00 miClear79°F66°F65%1015.2 hPa

Link to 5 minute data for KSNA

Wind History from SNA (wind in knots)
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Last 24hrW6SW10SW9S9SW7SW7W4S6S6S5S4S4S5S3CalmCalmCalmS3CalmCalmCalmSW6SW6W4
1 day agoSW8SW8SW6SW7SW7S10S9S6SW4S3CalmCalmN3W3NW3NW33CalmS4CalmSW5SW4SW55
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Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Sat -- 01:57 AM PDT     2.24 feet High Tide
Sat -- 05:50 AM PDT     Sunrise
Sat -- 10:23 AM PDT     0.19 feet Low Tide
Sat -- 11:59 AM PDT     Moonset
Sat -- 04:08 PM PDT     2.31 feet High Tide
Sat -- 08:04 PM PDT     Sunset
Sat -- 11:29 PM PDT     0.52 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.422.22.221.71.30.90.60.30.20.20.61.11.72.12.32.221.71.30.90.70.5

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Sat -- 02:34 AM PDT     3.45 feet High Tide
Sat -- 05:50 AM PDT     Sunrise
Sat -- 09:48 AM PDT     0.56 feet Low Tide
Sat -- 11:59 AM PDT     Moonset
Sat -- 04:45 PM PDT     3.55 feet High Tide
Sat -- 08:04 PM PDT     Sunset
Sat -- 10:54 PM PDT     1.56 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.533.43.43.22.82.21.510.60.60.81.31.92.63.13.53.53.32.92.421.71.6

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 Santa Ana Mtns, CA
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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.