Thursday, July18, 2019 L-36.com


Marine Weather and Tides
Costa Mesa, CA

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:53AMSunset 8:02PM Thursday July 18, 2019 2:24 AM PDT (09:24 UTC) Moonrise 9:33PMMoonset 7:26AM 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 208 Am Pdt Thu Jul 18 2019
Today..Winds variable 10 kt or less, becoming sw to W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 15 seconds.
Tonight..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and sw 2 ft at 15 seconds.
Fri..Winds variable 10 kt or less, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 7 seconds and sw 2 ft at 15 seconds.
Fri night..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 to 3 ft at 9 seconds and sw 2 ft at 15 seconds.
Sat..Winds variable 10 kt or less, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and sw 2 ft at 14 seconds.
Sat night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 ft at 14 seconds.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft.
Mon..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
PZZ600 208 Am Pdt Thu Jul 18 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z, or 2 am pdt, a 1028 mb high was located around 1000 nm W of san francisco, with a 1007 mb low from las vegas to yuma az.


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 180409 aaa
afdsgx
area forecast discussion
national weather service san diego ca
908 pm pdt Wed jul 17 2019

Synopsis
Weak low pressure aloft over the west coast will bring a cooling
trend to most areas through Friday, along with greater coverage of
night and morning low clouds west of the mountains. Some areas along
the coast will have better clearing Thursday and Friday afternoons.

A strong broad high pressure ridge will develop over the western
united states early next week and bring hot weather inland.

Monsoonal flow will also develop and could bring some afternoon and
early evening thunderstorms beginning Sunday and increasing through
Wednesday, mainly in the mountains and deserts. We may also see
increasing humidity with fewer low clouds near the coast.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

update:
forecast track remains relatively on point through the period. Only
major changes are evening low clouds. Trends indicating delayed
timing of inland empire low clouds this evening and Friday evening,
so backed off cloud cover for those evenings until around 12z each
night. Otherwise, no other changes.

Previous discussion:
areas of low clouds continued along the coast early this afternoon
with sunny skies inland. Temperatures averaged 3 to 5 degrees lower
versus 24 hours ago, though more in some valley locations due to the
higher marine level inversion and in the lower deserts due to some
increase in humidity from the southeast, albeit only at low
elevations, below about 1000 feet. Overall, a weak trough will
continue to develop over the west coast through Friday and bring
more cooling to the area along with a deeper marine layer for more
nocturnal stratus in the valleys. The models, including our local
wrf, are indicating little or no eddy Thursday and Friday, and that
combined with cooling above the inversion could result in better
clearing at the coast Thursday and Friday afternoons.

There will be a large-scale pattern change beginning this weekend as
the upper high now over the eastern us retrogrades west to the
central rockies by Sunday Monday and expanding Tuesday Wednesday.

The GFS ensemble runs are quite consistent with that as well as the
southeast flow aloft which will develop and bring much larger
amounts of mid and upper level moisture. The nbm 12-hour
thunderstorm probabilities increase each day Sunday through
Wednesday mainly over the mountains and deserts. Current forecast
has thunderstorm chances beginning Sunday, but the last two
(06z 12z) deterministic GFS runs show a wave from the southeast
moving up towards southern california Sunday along with a sudden
increase in moisture that date, though the ECMWF does not have this.

In the afternoon forecast we are adding slight chances of
thunderstorms in the mountains and deserts Sunday, and if the wave
is associated with CAPE aloft, which is often the case, there could
potentially be elevated convection west of the mountains.

Regardless, thunderstorm chances should increase further mon-wed.

Aviation
180300z... Coast valleys... Low clouds with bases 800-1300 ft msl
currently impacting coastal TAF sites will move 25-35 miles inland
overnight. Moderate to high confidence low clouds will impact kont
and ksbd from 11-16z. Reduced vis of 3-5 miles on higher coastal
terrain and coastal mesas through 17z. Scatter out expected after
16z in the valleys and along the coast 17-19z. Most of the immediate
coast should clear out by early afternoon.

Mountains deserts... Clear with unrestricted visibility through
Thursday.

Marine
No hazardous marine weather expected through Monday.

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... Previous (maxwell)... Update (jmb apr)
aviation marine... Connolly


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 12 mi24 min 69°F3 ft
46256 14 mi24 min 67°F4 ft
AGXC1 16 mi54 min E 9.9 G 11 66°F 1015.2 hPa
PFDC1 17 mi54 min E 8 G 8.9
BAXC1 18 mi54 min E 8 G 8.9
OHBC1 - 9410660 - Los Angeles, CA 18 mi54 min 68°F1015.4 hPa
46222 - San Pedro, CA (092) 19 mi31 min 69°F3 ft
PXAC1 19 mi54 min SE 8.9 G 9.9
46221 - Santa Monica Bay, CA (028) 39 mi24 min 69°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 39 mi54 min NW 2.9 G 5.1 66°F 68°F1015.1 hPa
46242 - Camp Pendleton Nearshore, CA (043) 40 mi56 min 71°F3 ft
46224 - Oceanside Offshore, CA (045) 41 mi24 min 71°F3 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 mi31 minN 010.00 miOvercast68°F59°F73%1015 hPa
Los Alamitos Army Airfield, CA12 mi28 minSSE 510.00 miOvercast65°F59°F82%1015.5 hPa
Fullerton, Fullerton Municipal Airport, CA17 mi31 minS 510.00 miOvercast66°F59°F78%1014.8 hPa
Long Beach, Long Beach Airport, CA17 mi31 minS 410.00 miOvercast68°F60°F76%1015 hPa

Wind History from SNA (wind in knots)
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Last 24hrS5SE5CalmE4--3SE7SW7SW9S5SE9S14S12SW10S11SW12S11S8SW4S5S4S4CalmCalm
1 day agoS4CalmCalmCalmCalmCalmCalmSW7SW9SW11S10SW12SW14SW13
G20
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2 days agoCalmSW4CalmS3S4Calm4S4SW8SW9SW7SW9SW9SW7SW7SW6SW8SW4SW7SW4SW5CalmCalmS3

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Thu -- 05:54 AM PDT     Sunrise
Thu -- 07:08 AM PDT     -0.09 feet Low Tide
Thu -- 07:26 AM PDT     Moonset
Thu -- 12:18 PM PDT     2.15 feet High Tide
Thu -- 06:20 PM PDT     0.48 feet Low Tide
Thu -- 08:01 PM PDT     Sunset
Thu -- 09:32 PM PDT     Moonrise
Thu -- 11:03 PM PDT     3.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.62.11.50.90.40-0.10.10.61.31.92.12.11.81.410.70.50.61.222.83.1

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Thu -- 05:54 AM PDT     Sunrise
Thu -- 06:33 AM PDT     -0.28 feet Low Tide
Thu -- 07:26 AM PDT     Moonset
Thu -- 12:55 PM PDT     3.31 feet High Tide
Thu -- 05:45 PM PDT     1.45 feet Low Tide
Thu -- 08:02 PM PDT     Sunset
Thu -- 09:33 PM PDT     Moonrise
Thu -- 11:40 PM PDT     4.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.94.33.32.21.10.3-0.2-0.20.211.92.63.23.33.12.621.61.51.82.43.34.24.7

Weather Map and Satellite Images
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wmap_P
GOES 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 (5,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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 numerious 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.