Thursday, April25, 2019 L-36.com


Marine Weather and Tides
Laguna Niguel, 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 6:07AMSunset 7:30PM Thursday April 25, 2019 5:33 PM PDT (00:33 UTC) Moonrise 12:55AMMoonset 11:12AM Illumination 60% 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 100 Pm Pdt Thu Apr 25 2019
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 ft at 11 seconds.
Fri..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 ft at 11 seconds.
Fri night..Wind nw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 ft at 11 seconds.
Sat..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft at 10 seconds.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 10 seconds.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Sun night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft. SWell sw 3 ft. Slight chance of showers after midnight.
Mon..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 3 ft. Slight chance of showers in the morning, then slight chance of tstms in the afternoon.
Mon night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 3 ft. Slight chance of tstms in the evening.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 3 ft.
Tue night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 3 ft.
PZZ700 100 Pm Pdt Thu Apr 25 2019
Synopsis for the far southern california coast.. At 1 pm a 1018 mb high was 900 nm southwest of san diego and a 1008 mb low was over needles. Winds will be fairly light through Sunday with a weak coastal eddy at times. A low pressure trough will bring a chance for showers a small chance for Thunderstorms Sunday night and Monday.


7 Day Forecast for Marine Location Near Laguna Niguel, CA
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location: 33.52, -117.69     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 252022
afdsgx
area forecast discussion
national weather service san diego ca
122 pm pdt Thu apr 25 2019

Synopsis
High pressure aloft will weaken gradually through the upcoming
weekend, allowing the marine layer to build inland, with morning
low clouds and fog spreading farther into the valleys. It will
be slightly cooler each day through Sunday, as the deserts remain
hot. For Monday, a low pressure system will move inland, bringing
greater cooling, stronger and gusty west winds over the mountains
and deserts, and a chance for showers. Even isolated thunderstorms
are a possibility.

Discussion For extreme southwestern california including orange...

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

at 1 pm pdt... Marine clouds had retreated back offshore, except for
a few spots along the immediate coast. The sfc pressure gradients
were still quite weak and winds light most areas. Most reporting
sites had temperatures with in 3f of where they were yesterday at
the same time. A weak shortwave trough skimming the northern
portions of the CWA is firing up some cumulus over the san
bernardino mts. At this time, the short-range, hires models show no
precip developing so pops remain below threshold.

The broad upper-level ridge over the SW will slowly weaken through
the upcoming weekend, allowing the onshore flow to increase and the
marine layer to build farther inland. Little change is expected
tonight, but greater coverage into the valleys is likely by Sunday.

It will stay quite warm far inland and in the deserts until then,
but for the western valleys incremental cooling is expected each day
as the sea breeze strengthens a bit more.

For Monday and Tuesday, expect more noticeable cooling as onshore
flow increases and daytime highs remain well below normal. This will
be in response to low pressure moving inland across socal. The
gfs ECMWF operational runs still show significant timing
differences, but the track and intensity of the system are very
close. This lowers confidence in any precip timing, which impacts
pops, which are spread out between Mon tue. Also, the pattern
suggests a threat of thunderstorms as we are placed in the ne
quadrant of the incoming system where lift should be maximized.

As the storm system moves east, models show another broad trough
building south over the west, which should maintain onshore flow,
the marine layer, and near to below average temperatures.

Aviation
252000z... Coast valleys... Generally clear through 02z. After 02z...

bkn-ovc008-012 tops 017 over the coastal waters spreading inland 10-
15 miles through 14z Friday. Kont impacted with 2-5 mile vis in
fog haze from 13z-17z. Clouds will clear back to the coast between
17-19z with patchy low clouds lingering at some of the beaches in
the afternoon.

Mountains deserts... Scattered cumulus over the san bernardino and
san jacinto mountains through 03z. After 03z... Clear with
unrestricted vis tonight and Friday.

Marine
No hazardous marine conditions through Sunday. On Sunday night and
Monday a trough will bring a chance for showers and a slight chance
for thunderstorms.

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
aviation marine... Moede


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 25 mi35 min 64°F2 ft
46224 - Oceanside Offshore, CA (045) 26 mi33 min 65°F2 ft
46253 26 mi33 min 62°F2 ft
46256 30 mi33 min 60°F2 ft
PRJC1 30 mi33 min W 14 G 15
AGXC1 32 mi33 min WSW 14 G 16 60°F 1014 hPa
PFXC1 32 mi33 min WSW 8 G 8.9 69°F
PFDC1 33 mi33 min S 4.1 G 5.1
PSXC1 33 mi33 min W 5.1 G 7
46222 - San Pedro, CA (092) 34 mi33 min 62°F3 ft
BAXC1 34 mi33 min S 8 G 9.9
OHBC1 - 9410660 - Los Angeles, CA 34 mi33 min 62°F1014.1 hPa (-1.4)
PXAC1 35 mi33 min NW 6 G 7
46225 - Torrey Pines Outer, CA (100) 44 mi33 min 65°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, CA15 mi40 minWSW 710.00 miA Few Clouds68°F55°F63%1013.9 hPa
Oceanside, Camp Pendleton, Marine Corps Air Station, CA24 mi38 minSW 87.00 miA Few Clouds67°F55°F68%1013.7 hPa

Wind History from SNA (wind in knots)
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Last 24hrS8SW8SW9SW5SW4SW5SW4W3CalmSE53SE3CalmCalm3Calm34S9S9SW10SW7SW6W7
1 day agoSW6S5S7SW4SW6S5E5S4S5CalmE4Calm3Calm3CalmS55SW7SW11SW11SW11SW12SW10
2 days agoSW6S9S11S5SE4CalmS3CalmNE3CalmNE4N4NE3Calm4CalmSW5S5SW4SW11S10S9S10S6

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Thu -- 12:54 AM PDT     Moonrise
Thu -- 01:16 AM PDT     4.33 feet High Tide
Thu -- 06:08 AM PDT     Sunrise
Thu -- 09:25 AM PDT     0.31 feet Low Tide
Thu -- 11:11 AM PDT     Moonset
Thu -- 05:14 PM PDT     3.12 feet High Tide
Thu -- 07:28 PM PDT     Sunset
Thu -- 08:44 PM PDT     2.88 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.34.33.93.42.61.81.10.60.30.40.71.11.72.32.733.13.132.92.933.2

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California (2)
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Newport Bay Entrance
Click for Map
Thu -- 12:56 AM PDT     Moonrise
Thu -- 01:27 AM PDT     4.27 feet High Tide
Thu -- 06:09 AM PDT     Sunrise
Thu -- 09:36 AM PDT     0.34 feet Low Tide
Thu -- 11:12 AM PDT     Moonset
Thu -- 05:34 PM PDT     3.24 feet High Tide
Thu -- 07:29 PM PDT     Sunset
Thu -- 09:10 PM PDT     2.97 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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44.24.243.52.821.30.70.40.40.61.11.62.22.733.23.23.13333.2

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 (20,4,5,8)
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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.