Monday, May29, 2017 L-36.com


Marine Weather and Tides
Descanso, CA

Version 3.4
What's New / NOTES
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 5:39AMSunset 7:51PM Monday May 29, 2017 8:42 PM PDT (03:42 UTC) Moonrise 9:49AMMoonset 11:49PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 139 Pm Pdt Mon May 29 2017
Tonight..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 8 seconds and sw 2 ft at 16 seconds.
Tue..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 9 seconds and sw 2 ft at 15 seconds.
Tue night..Wind variable less than 10 kt...becoming S 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 9 seconds and sw 2 ft at 15 seconds.
Wed..Wind S 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 8 seconds and sw 2 ft at 14 seconds.
Wed night..Wind S 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 8 seconds and S 1 to 2 ft at 12 seconds.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 1 to 2 ft.
Thu night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 1 to 2 ft.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 to 3 ft.
Sat..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 3 ft.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 3 ft.
PZZ700 139 Pm Pdt Mon May 29 2017
Synopsis for far southern california coast.. At 130 pm...a 1025 mb high was 750 nm west of san diego and a 1005 mb low was just southeast of yuma. Weak to moderate onshore flow will bring a mix of southwest and northwest winds through Friday. Strongest winds will occur during the afternoons and evenings.

7 Day Forecast for Marine Location Near Descanso, CA
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location: 32.87, -116.63     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 292033
afdsgx
area forecast discussion
national weather service san diego ca
133 pm pdt Mon may 29 2017

Synopsis
A low pressure trough along the west coast will bring slow deepening
of the marine layer into Wednesday, with nocturnal marine clouds
and patchy fog spreading a little farther into the valleys each day.

Cooler into midweek with patchy drizzle possible and only partial
clearing in some areas as the marine layer deepens. Warmer again
into the weekend under a weak high pressure ridge aloft, then cooler
early next week as a trough redevelops.

Discussion For extreme southwestern california including orange...

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

marine clouds were slowly clearing back to the coast at midday, even
as the higher clouds spread east off the pacific. The combination of
clouds had resulted in partial Sun in many areas west of the mts
this morning, which held temps some 3 to 9 degrees f below values
observed yesterday at 11 am pdt. Quite hot in the deserts though,
with 105 in palm springs and 90s across the high deserts at 1 pm
pdt. Surface pressure gradients were trending a bit better onshore
today at 8 mbs ksan to the lower deserts at 1 pm pdt. Still, peak
wind gusts were only in the 20-25 mph range through wind prone
mtn desert areas.

A low pressure trough in the upper atmosphere along the west coast
will deepen slightly and drift slowly east through Thursday. This
will deepen the marine layer, and produce more extensive and
persistent marine stratus throughout the coastal basin. Some patchy
drizzle is possible late nights mornings due to the depth of the
stratus layer. The trough will lift out by fri, allowing a weak
ridge to build into Saturday. Some reduction in marine layer depth
and stratus coverage is likely inland through the weekend under the
ridge.

Another, weaker trough arrives Sunday and persists into next week,
maintaining onshore flow and a marine layer with attendant nocturnal
clouds patchy fog west of the mts. Based on the 12z ECMWF model run,
the extent and persistence of morning stratus would be more limited
than this week for better clearing.

For temperature trends... Look for slight cooling on tue, although if
the stratus persists over portions of the coast valleys, it could be
more significant. Greater cooling is likely all areas for Wed Thu as
the marine layer and onshore flow peak. A coastal eddy may develop
at this time as well, limiting clearing. This will drop temperatures
back to levels that are a bit below average for early june.

Warmer by the middle of next week as heights thickness build,
although there are differences in the global model solutions. The
ecmwf is more aggressive with the ridging along the west coast than
both the 12z GFS gem.

Aviation
292030z... Coast valleys... Sct-bkn low clouds with bases near 1,200
ft msl will continue over coastal areas through 02z Tuesday. Low
clouds should begin to increase in coverage along the coast after
02z, spreading inland 25-40 miles through 14z Tuesday. Bases
overnight will be near 1,000 ft msl with tops near 2,000 ft msl.

Visibility restriction of 2 sm or less are likely near the higher
valley terrain. Slow or perhaps only partial clearing is anticipated
Tuesday along the coast, with ksan, kcrq and ksna not clearing until
after 20z.

Mountains deserts... Light winds, unrestricted visibility and sct aoa
20,000 ft msl will prevail through 00z Wednesday.

Marine
Quiet conditions are anticipated through Friday with a mixed swell
(2-4 ft at 7-10 sec from the northwest and 2 ft at 12-15 sec from
the south). Winds will remain light this week, with a mix of
southwesterly winds in the mornings early afternoons followed by
more west northwest winds in the late afternoons evenings.

Skywarn
Skywarn activation will not be needed today.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public... Jad
aviation marine... Ba


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IIWC1 - 9410172 - USS Midway South Navy Pier, San Diego, CA 31 mi67 min SSW 8.9 G 9.9 60°F
SDBC1 - 9410170 - San Diego, CA 31 mi43 min 68°F1013.1 hPa (+0.8)
TIXC1 - Tijuana River Reserve, CA 33 mi58 min SW 2.9 61°F 1014 hPa56°F
LJAC1 - 9410230 - La Jolla, CA 33 mi43 min WSW 4.1 G 6 63°F 63°F1012.1 hPa (+0.6)
LJPC1 - La Jolla, CA (073) 33 mi83 min WSW 6
46254 34 mi55 min 63°F3 ft
46225 - Torrey Pines Outer, CA (100) 41 mi52 min 64°F4 ft
46258 47 mi43 min 63°F4 ft
46232 - Point Loma South, CA (191) 48 mi32 min 65°F4 ft
46242 - Camp Pendleton Nearshore, CA (043) 49 mi75 min 60°F3 ft
46224 - Oceanside Offshore, CA (045) 49 mi43 min 64°F3 ft

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego/El Cajon, Gillespie Field Airport, CA18 mi56 minWSW 510.00 miMostly Cloudy63°F55°F77%1012.5 hPa
Ramona, Ramona Airport, CA19 mi50 minW 610.00 miFair59°F55°F90%1011.7 hPa
Campo, CA19 mi51 minSSW 6 mi63°F55°F78%1009.2 hPa

Wind History from SEE (wind in knots)
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Last 24hrW7W5NW5W3NW4CalmCalmW4NW5NW3N3Calm55566--6666SW7SW5
1 day agoW6NW7W4W4NW4CalmCalmW3CalmNW3CalmCalmCalmCalmCalmCalm--W12W10W7W10W9W8W8
2 days ago--W6W6W4W7W5W4W4W4W4NW4Calm--W4W56--W9W13W13W10W10W10--

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Mon -- 12:08 AM PDT     6.62 feet High Tide
Mon -- 05:42 AM PDT     Sunrise
Mon -- 07:30 AM PDT     -1.19 feet Low Tide
Mon -- 09:51 AM PDT     Moonrise
Mon -- 02:10 PM PDT     4.45 feet High Tide
Mon -- 07:09 PM PDT     2.29 feet Low Tide
Mon -- 07:49 PM PDT     Sunset
Mon -- 11:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.66.45.54.12.40.8-0.4-1.1-1.1-0.40.723.24.14.44.33.83.12.62.32.533.94.9

Tide / Current Tables for San Diego, California
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San Diego
Click for Map
Mon -- 12:04 AM PDT     6.42 feet High Tide
Mon -- 05:42 AM PDT     Sunrise
Mon -- 07:20 AM PDT     -1.19 feet Low Tide
Mon -- 09:51 AM PDT     Moonrise
Mon -- 02:06 PM PDT     4.25 feet High Tide
Mon -- 06:59 PM PDT     2.29 feet Low Tide
Mon -- 07:50 PM PDT     Sunset
Mon -- 11:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.46.15.23.82.10.6-0.6-1.2-1-0.30.82.13.244.24.13.632.52.32.53.144.8

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

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (23,6,7,8)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.