Saturday, November18, 2017

Marine Weather and Tides
Costa Mesa, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:26AMSunset 4:48PM Saturday November 18, 2017 12:17 AM PST (08:17 UTC) Moonrise 7:28AMMoonset 6:22PM Illumination 0% Phase: New Moon; Moon at 29 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- 840 Pm Pst Fri Nov 17 2017
Tonight..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Wind waves 2 to 3 ft. Mixed swell W 2 to 4 ft at 11 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
Sat..From point mugu to santa Monica, ne winds 15 to 20 kt with local gusts to 25 kt becoming N 10 to 20 kt in the afternoon. Elsewhere, N winds 5 to 10 kt becoming nw in the afternoon. Wind waves 1 to 3 ft. Mixed swell W swell 2 to 4 ft at 11 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
Sat night..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and S 2 ft at 13 seconds.
Sun..NW winds 10 to 15 kt, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 11 seconds and S 2 ft at 13 seconds.
Sun night..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 16 seconds.
Mon..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and S 2 ft at 14 seconds.
Mon night..W winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 12 seconds and S 2 ft at 14 seconds.
Tue..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Wed..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
PZZ600 840 Pm Pst Fri Nov 17 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 04z...or 8 pm pst...a 1029 mb surface high along the nevada-idaho border will continue to build into the great basin through Saturday, while a 1018 mb inverted trough remains along the southern california coast. Offshore flow will develop over the inner coastal waters into Saturday morning, possibly bringing advisory level winds and choppy seas.

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 180515
area forecast discussion
national weather service san diego ca
915 pm pst Fri nov 17 2017

Clearing skies will bring increased radiational cooling tonight,
with patchy frost possible over the upper deserts. Light offshore
flow tomorrow will fade as a subtropical ridge builds over the
southwest through the middle of next week. This should bring
unseasonably warm conditions to the region by thanksgiving.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino

at 845 pm... The upper trough that brought the first major
snowfall of the year to the sierra over the last 48 hours was
shifting eastward. With this, upper level winds over southern
california were taking on a more prevalent westerly component,
bringing upper level drying and a reduction in high cloud cover.

Increased moisture below 700 mb, evident on the 00z nkx sounding,
was allowing a few low clouds to form along the coast. Surface
gradients remained onshore with the majority of the region
experiencing light winds. Signs of change were evident in the
surface observations with a 1029 mb surface high building over

For the remainder of tonight, surface high pressure currently over
northern nevada will continue to build and propagate southeast.

This will result in weakly offshore surface pressure gradients,
and locally breezy northeast winds by Saturday morning. Winds
won't be particularly strong. More notable will be the falling
dewpoints that will allow for significant radiational cooling over
mojave desert and mountains overnight. Patchy frost is possible
in low lying areas of victorville, hesperia, apple valley and
lucerne valley as overnight lows fall briefly to 34-37 degrees
prior to sunrise (colder at ground level). Will forgo a frost
advisory for the upper deserts tonight, as light northeast winds
and dewpoint temperatures above 32 f for most of the night should
limit the areal coverage of any frost that forms.

Another largely quiet weather day is on tap for tomorrow, with a
notable increase in sunshine compared to the prior two days and
afternoon highs within a couple degrees of seasonal averages.

Though limited, weak offshore surface pressure gradients will
bring locally breezy winds and elevated fire weather conditions to
fontana, rialto and san bernardino area. Cold overnight
temperatures are expected again Saturday night in the upper

Global models are in good agreement into early next week, proging
the subtropical ridge to build north over the southwest. This will
bring a warming trend as 500 mb heights approach 590 dm by
midweek. It should also make for a warm thanksgiving with
afternoon highs west of the mountains near 15 degrees above
average. Certainly a change from last year, when big bear lake
reported 3.5 inches of snow over the thanksgiving weekend.

180500z... Coast and valleys... Sct-bkn clouds of variable bases
between 500 and 2000 ft msl will prevail overnight. Timing of
bkn CIGS is uncertain as most areas will alternate between sct and
bkn overnight. Tops will be variable as well due to layered clouds,
with local tops above 3000 ft. Areas of terrain will be obscured
with local vis below 1 mile over higher terrain, including near the
coast. Most areas will clear by 17z Sat withVFR conditions
prevailing after 17z sat. Local surface winds 15-25 kt with
gusts to 35 kt from the northeast will occur in below cajon pass
and banning pass 08z-20z sat.

Mountains and deserts... Local surface winds 15-25 kt with gusts to
35 kt from the northeast will occur in the san bernardino, san
jacinto and santa ana mountains and areas north of kpsp 08z-20z sat.

Otherwise, clouds above 12000 ft msl will gradually diminish the
rest of tonight.

No hazardous marine conditions are expected through Wednesday.

Fire weather
Light offshore winds will develop Saturday morning and continue
through the day. Elevated fire weather conditions will occur
south of the cajon pass, where wind gusts to 35 mph and minimum
relative humidity values near 15% are expected. Winds will fade
Sunday as offshore flow dissipates. Warm weather and a possible
return of offshore flow may bring locally elevated fire weather
conditions Wednesday-Thursday.

Skywarn activation will not be needed through next week.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public fire weather... Albright
aviation marine... Maxwell

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 12 mi47 min 63°F2 ft
46256 14 mi55 min 62°F3 ft
46222 - San Pedro, CA (092) 19 mi47 min 63°F3 ft
46221 - Santa Monica Bay, CA (028) 39 mi47 min 63°F4 ft
46242 - Camp Pendleton Nearshore, CA (043) 40 mi79 min 62°F2 ft
46224 - Oceanside Offshore, CA (045) 41 mi47 min 64°F3 ft

Wind History for Los Angeles Pier J, CA
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA6 mi24 minN 010.00 miFair62°F59°F90%1019.4 hPa
Los Alamitos Army Airfield, CA12 mi19 minN 010.00 mi59°F58°F97%1019.6 hPa
Fullerton, Fullerton Municipal Airport, CA17 mi24 minN 010.00 miFair60°F57°F93%1019.1 hPa
Long Beach, Long Beach Airport, CA17 mi24 minE 310.00 miFair60°F55°F86%1019.7 hPa
Torrance, Zamperini Field Airport, CA23 mi4.5 hrsW 1010.00 miClear63°F55°F77%1017.9 hPa

Wind History from SNA (wind in knots)
Last 24hrCalmCalmCalmCalmS3CalmCalmS3CalmNW3N5W5CalmSW8SW5W4SW7SW4S3SW4W3CalmSE4Calm
1 day agoNE3CalmCalmCalmCalmNE3CalmCalmCalmCalmSW3SW43W3SW5SW4SW4SW3SE3S4CalmCalmCalmCalm
2 days agoCalmE3NE3CalmCalmCalmCalmCalmCalmSW3CalmCalmCalmW6W5SW3CalmSW6CalmSW3Calm4CalmNE4

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
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Sat -- 03:42 AM PST     New Moon
Sat -- 03:58 AM PST     0.33 feet Low Tide
Sat -- 06:26 AM PST     Sunrise
Sat -- 06:27 AM PST     Moonrise
Sat -- 08:47 AM PST     3.26 feet High Tide
Sat -- 04:47 PM PST     Sunset
Sat -- 05:07 PM PST     -0.05 feet Low Tide
Sat -- 05:22 PM PST     Moonset
Sat -- 10:01 PM PST     2.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Sat -- 03:20 AM PST     1.04 feet Low Tide
Sat -- 03:42 AM PST     New Moon
Sat -- 06:27 AM PST     Sunrise
Sat -- 06:28 AM PST     Moonrise
Sat -- 09:22 AM PST     5.02 feet High Tide
Sat -- 04:31 PM PST     -0.14 feet Low Tide
Sat -- 04:47 PM PST     Sunset
Sat -- 05:23 PM PST     Moonset
Sat -- 10:37 PM PST     3.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southwest    EDIT

Wind Forecast for San Diego, CA (3,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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 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 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.