Thursday, December13, 2018 L-36.com


Marine Weather and Tides
Newport Beach, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:46AMSunset 4:46PM Thursday December 13, 2018 1:39 AM PST (09:39 UTC) Moonrise 12:24PMMoonset 11:36PM Illumination 32% Phase: Waxing Crescent; Moon at 6 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 Wed Dec 12 2018
Tonight..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Thu..Winds variable 10 kt or less, becoming ne 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Thu night..NE winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Wind waves 2 ft or less. W swell 2 ft at 16 seconds.
Fri..E winds 10 to 15 kt, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 15 seconds.
Fri night..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 16 seconds.
Sat..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 to 4 ft at 15 seconds.
Sat night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 5 ft at 14 seconds.
Sun..S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 4 ft. Slight chance of rain.
Mon..SE winds 5 to 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft. Chance of showers.
PZZ600 840 Pm Pst Wed Dec 12 2018
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 1034 mb surface high was over northeast nevada, while a 1021 mb thermal low was near san clemente island. Hazardous seas are possible Thursday through Saturday night across the outer and northern coastal waters.


7 Day Forecast for Marine Location Near Balboa, CA
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location: 33.59, -117.91     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 130538
afdsgx
area forecast discussion
national weather service san diego ca
938 pm pst Wed dec 12 2018

Synopsis
A santa ana weather pattern will bring gusty winds to the mountains
and foothills tonight and Thursday. Thursday will be a warmer day in
the coastal and valley areas, and a cooler day in the mountains and
deserts. The weather will be dry and mild through the weekend,
followed by clouds and perhaps a chance of light rain Monday as a
weak trough moves inland. On Tuesday, high pressure builds over the
southwest for dry, mild weather through Friday.

Discussion For extreme southwestern california including orange...

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

Update...

patchy low clouds are seen off the coast on satellite imagery.

Offshore flow should keep these off the coast. Offshore winds will
pick up through the passes and along the coastal mountain slopes.

30 mph reported just below the cajon pass past hour. Latest wrf
is not aggressive with wind speeds, and this model usually
overdoes speed. Gusts in the most wind prone locales could reach
40+ mph, but not meeting advisory criteria and no significant
impacts are expected. See previous discussion below for further
forecast details.

Previous discussion (issued at 210 pm pst Wed dec 12 2018)...

pressure gradients from the great basin have trended offshore at a
pretty good pace since sunrise, increasing from 0.0 to -6.3 from san
diego to tonopah. A shallow marine layer kept temperatures in the
mid 60s in the coastal and valley areas early this afternoon, which
is a little below average. Mountain and desert areas will be a
little above average today.

This temperature regime flip-flops on Thursday with the onset of a
santa ana pattern that will bring warming west of the mountains and
cooling to the mountains and deserts. Coastal and valley highs will
be in the 70s, with an 80 degree high possible at some sites in
inland orange county sites where downslope warming will be the
greatest. Mountain highs will in the 50s, high desert highs in the
upper 50s, and lower desert highs in the upper 60s to low 70s.

As for the winds, a 1040 mb surface high settles over southern
idaho, strong enough to support a period of gusty offshore winds
later tonight through Thursday morning. This won't be a terribly
strong offshore wind event, but there will be gusts to 45-50 mph in
the windiest santa ana prone mountain passes and eastern valleys.

The offshore winds abate Thursday afternoon through Friday morning,
followed by weak onshore flow Friday afternoon.

On Saturday and Sunday a weak trough passes through bringing high
clouds but nothing much more than that. Temperatures will be a
little warmer than average, and winds will be fairly light.

A pacific trough moves inland Monday for cooler weather and small
chances of light rain. The ECMWF continues it's stronger, wetter
trend with a closed low traversing socal Monday. The GFS is much
weather with a more progressive wave moving inland farther north
across central california. On Tuesday a high amplitude ridges builds
in behind the trough and will bring sunny, mild days through Friday.

Aviation
130415z... A few low clouds with bases around 1500 ft msl will
continue along the coast through about 09z. CIGS at the coastal taf
sites are unlikely, though some may have a brief period of 3-5 sm
vis in br 06-10z. Otherwise a few high clouds and unrestricted vis
through Thursday evening.

Ne-e surface wind gusts of 30-40 kt are possible Thu morning along
coastal mountain slopes and below the passes and canyons. Winds will
weaken Thu afternoon.

Marine
No hazardous marine weather is expected through Sunday. A large wnw
swell arriving Monday may generate combined seas of over 10 ft.

Skywarn
Skywarn activation will not be needed through the week.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public... Gregoria (update) moede (prev discussion)
aviation marine... Ss


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 14 mi39 min 63°F3 ft
46256 17 mi39 min 62°F2 ft
PRJC1 18 mi39 min NE 1.9 G 2.9
PFXC1 19 mi39 min N 1.9 G 2.9 56°F
AGXC1 20 mi39 min N 1.9 G 2.9 57°F 1022.3 hPa (+0.0)
PFDC1 20 mi39 min N 2.9 G 2.9
PSXC1 21 mi39 min NE 2.9 G 4.1
OHBC1 - 9410660 - Los Angeles, CA 21 mi39 min 62°F1022.3 hPa (+0.0)
BAXC1 21 mi69 min NE 2.9 G 4.1
PXAC1 22 mi39 min N 1 G 1
46222 - San Pedro, CA (092) 22 mi39 min 62°F3 ft
46224 - Oceanside Offshore, CA (045) 37 mi39 min 63°F2 ft
46221 - Santa Monica Bay, CA (028) 43 mi39 min 62°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 43 mi39 min NE 1 G 1.9 55°F 62°F1022.3 hPa (-0.3)

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, CA7 mi46 minN 08.00 miFair53°F48°F83%1021.9 hPa
Los Alamitos Army Airfield, CA16 mi1.7 hrsN 02.75 miFog/Mist50°F50°F100%1022.3 hPa
Fullerton, Fullerton Municipal Airport, CA20 mi46 minN 05.00 miFog/Mist50°F46°F86%1021.8 hPa
Long Beach, Long Beach Airport, CA21 mi46 minN 06.00 miFog/Mist51°F48°F89%1022 hPa

Wind History from SNA (wind in knots)
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Last 24hrCalmNE3CalmCalmE4E34N43SW9SW10SW7S10S10SW9433CalmS3CalmCalmCalmCalm
1 day agoCalmCalmCalmE4CalmE5NE3Calm5S5W3W5SW7SW5SW7SW5S3CalmSE3E5Calm3CalmCalm
2 days agoCalmN3CalmCalmCalmCalmCalmCalmCalm3CalmSW8S6SW5SW3S4S3W3E3NW34CalmE3E5

Tide / Current Tables for Balboa Pier, Newport Beach, California
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Balboa Pier
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Thu -- 02:24 AM PST     3.56 feet High Tide
Thu -- 06:40 AM PST     3.08 feet Low Tide
Thu -- 06:47 AM PST     Sunrise
Thu -- 11:23 AM PST     Moonrise
Thu -- 11:57 AM PST     4.07 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 07:52 PM PST     0.74 feet Low Tide
Thu -- 10:35 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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33.43.53.53.43.23.13.13.23.43.744.143.63.12.41.81.20.80.70.91.42

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
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Thu -- 03:33 AM PST     3.08 feet High Tide
Thu -- 06:48 AM PST     Sunrise
Thu -- 07:52 AM PST     1.92 feet Low Tide
Thu -- 11:24 AM PST     Moonrise
Thu -- 01:06 PM PST     3.52 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 09:04 PM PST     0.46 feet Low Tide
Thu -- 10:36 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.92.52.93.132.82.421.92.12.42.93.33.53.43.22.72.11.510.60.50.60.9

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 (4,6,7,8)
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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.