Thursday, December13, 2018 L-36.com


Marine Weather and Tides
Lake Forest, 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 6:45AMSunset 4:45PM Thursday December 13, 2018 1:18 PM PST (21:18 UTC) Moonrise 12:23PMMoonset 11:35PM Illumination 37% 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- 902 Am Pst Thu Dec 13 2018
Today..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.
Tonight..NE winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 16 seconds.
Fri..E winds 10 to 15 kt in the morning, becoming variable 10 kt or less. 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..NW 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 16 seconds.
Sun..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 4 ft.
Mon..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. W swell 5 to 7 ft. Chance of showers.
PZZ600 902 Am Pst Thu Dec 13 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z...or 8 am pst, a 1040 mb surface high was over eastern idaho extending a ridge to a 1026 mb high 300 nm W of point conception. Hazardous seas are possible today through Saturday night across the outer and northern coastal waters. Potential for a larger swell to affect coastal waters by large swell by Sunday night into Monday for all coastal waters.


7 Day Forecast for Marine Location Near Lake Forest, CA
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location: 33.71, -117.7     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 131731
afdsgx
area forecast discussion
national weather service san diego ca
930 am pst Thu dec 13 2018

Synopsis
Warmer west of the mountains today with gusty santa ana winds near
and below the coastal slopes of the mountains and below passes and
canyons. Onshore flow will bring cooling for coastal and valley
areas on Friday, with more mid and high clouds moving across the
area. A little warmer this weekend as a weak trough moves inland.

There is a small chance for some light precipitation on Monday,
then dry and warmer into midweek as high pressure builds aloft and
winds turn back offshore.

Discussion For extreme southwestern california including orange...

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

skies were clear over socal at 9 am pst. The sfc pressure gradient
from SW nv to ksan was around 9 mbs. This was supporting NE winds 20
mph with gusts to 30-35 mph along the coastal foothills and through
the passes. No changes to the forecast at this time.

From previous discussion...

there will be high pressure aloft along the west coast today with
surface high pressure over the great basin. Satellite imagery
shows a few patches of stratus early this morning, mostly over the
coastal waters, with a few high clouds as well. The surface high
pressure over the great basin will bring periods of gusty east to
northeast winds near the coastal slopes of the mountains and below
passes and canyons. The mountains and deserts may be slightly
cooler today than on Wednesday with several degrees of warming
west of the mountains with greatest warming for inland coastal
areas into the western valleys.

For Friday, a trough of low pressure moving inland to the north
will bring a return of onshore flow which will spread cooling into
coastal and valley areas. That trough of low pressure will also
draw mid and high level subtropical moisture northward across the
area with more clouds on Friday into Friday night. Onshore flow
will be weaker for the weekend with slightly warmer high
temperatures for most areas.

For Monday, the range of model solutions for a trough of low
pressure moving inland across california has not changed much from
the past two days with the solutions ranging from a less
amplified trough of low pressure moving inland faster to a little
slower moving low pressure system that briefly closes off near the
california coast as it moves inland. The faster solutions would
be mostly dry while the slower moving more closed solutions would
bring more widespread precipitation and would more effectively
tap a subtropical moisture plume directed into southern california
ahead of the low pressure system. The current forecast remains
with an intermediate solution that would have a weakening front
moving across southern california with some light precipitation
possible for portions of southwest california.

For Tuesday and Wednesday, high pressure aloft will strengthen
along the west coast with surface high pressure over the great
basin. This will bring a warming trend with periods of gusty
northeast to east winds near and below the coastal slopes of the
mountains and below passes and canyons.

Aviation
131630z... Clear skies with unrestricted vis will prevail through
Friday. Areas of ne-e surface wind gusts of 25-35 kt are expected
mainly in foothills and below passes through 21z today, then mostly
15-25 kt through Friday morning.

Marine
No hazardous marine weather is expected through Sunday. A large wnw
swell Monday and Tuesday will likely generate seas of 10-13 feet,
highest in the outer coastal waters (beyond 30 nm), though the
period will be quite long, 18-20 seconds.

Beaches
A large long-period (18-20 seconds) swell from the west-northwest is
currently projected to arrive Monday and continue through Tuesday.

The direction from 290 degrees will limit the effects somewhat,
though surf of 6-12 feet is still quite possible, especially in
southern san diego county. Stay tuned in coming days to any hazard
products as the swell approaches.

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... 10 17
aviation marine beaches... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRJC1 26 mi30 min SSW 4.1 G 4.1
PFXC1 27 mi30 min S 4.1 G 5.1 65°F
46256 27 mi48 min 62°F2 ft
46253 27 mi18 min 64°F4 ft
PSXC1 28 mi30 min S 4.1 G 6
PFDC1 29 mi30 min SSE 1.9 G 1.9
BAXC1 29 mi30 min S 1.9 G 4.1
AGXC1 29 mi30 min SW 5.1 G 5.1 66°F 1022.1 hPa
OHBC1 - 9410660 - Los Angeles, CA 30 mi30 min 62°F1021.9 hPa
PXAC1 30 mi42 min SE 4.1 G 5.1
46222 - San Pedro, CA (092) 33 mi48 min 63°F3 ft
46224 - Oceanside Offshore, CA (045) 39 mi48 min 64°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 47 mi30 min NE 8.9 G 11 77°F 62°F1021.8 hPa

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, CA9 mi25 minSW 410.00 miFair74°F37°F26%1021.3 hPa
Corona Airport, CA14 mi22 minE 610.00 miFair0°F0°F%1022.3 hPa
Chino, Chino Airport, CA18 mi25 minE 910.00 miFair77°F23°F13%1022.2 hPa
Los Alamitos Army Airfield, CA19 mi20 minSW 510.00 miFair74°F43°F33%1021.6 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi25 minE 610.00 miFair80°F19°F10%1020.9 hPa
Riverside Municipal Airport, CA21 mi25 minNE 810.00 miFair75°F19°F12%1021.1 hPa

Wind History from SNA (wind in knots)
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Last 24hrS10S10SW9433CalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmSW4
1 day agoSW7SW5SW7SW5S3CalmSE3E5Calm3CalmCalmCalmNE3CalmCalmE4E34N43SW9SW10SW7
2 days agoS6SW5SW3S4S3W3E3NW34CalmE3E5CalmCalmCalmE4CalmE5NE3Calm5S5W3W5

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California
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Newport Bay Entrance
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Thu -- 02:17 AM PST     3.62 feet High Tide
Thu -- 06:28 AM PST     3.07 feet Low Tide
Thu -- 06:47 AM PST     Sunrise
Thu -- 11:23 AM PST     Moonrise
Thu -- 12:05 PM PST     4.13 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 07:47 PM PST     0.71 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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33.43.63.63.43.23.13.13.23.53.844.143.73.12.51.81.20.80.70.91.42

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California (2)
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Newport Bay Entrance
Click for Map
Thu -- 02:31 AM PST     3.60 feet High Tide
Thu -- 06:39 AM PST     3.11 feet Low Tide
Thu -- 06:47 AM PST     Sunrise
Thu -- 11:23 AM PST     Moonrise
Thu -- 12:04 PM PST     4.11 feet High Tide
Thu -- 04:44 PM PST     Sunset
Thu -- 07:51 PM PST     0.75 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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2.93.43.63.63.43.33.13.13.23.53.844.143.73.22.51.81.20.90.70.91.42

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 (16,3,4,5)
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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.