Friday, March24, 2017 L-36.com


Marine Weather and Tides
Descanso, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:43AMSunset 7:04PM Friday March 24, 2017 6:55 PM PDT (01:55 UTC) Moonrise 4:35AMMoonset 3:45PM Illumination 7% Phase: Waning Crescent; Moon at 27 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- 119 Pm Pdt Fri Mar 24 2017
Tonight..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 3 to 4 ft at 8 seconds.
Sat..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft at 9 seconds. Slight chance of showers.
Sat night..Wind W 10 to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 4 to 7 ft at 9 seconds.
Sun..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 6 ft at 14 seconds.
Sun night..Wind W 10 to 15 kt. Wind waves 3 ft in the evening... Becoming 2 ft or less. SWell W 4 to 7 ft at 13 seconds.
Mon..Wind N 10 kt...becoming W in the afternoon. Wind waves 2 ft or less. SWell W 5 to 7 ft.
Mon night..Wind W 10 to 20 kt with gusts to 25 kt. Wind waves 4 ft. SWell W 8 to 11 ft.
Tue..Wind N 10 kt...becoming W with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 5 to 8 ft.
Tue night..Wind nw 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 3 to 4 ft in the evening...becoming 2 ft or less. SWell W 5 to 6 ft.
Wed..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 5 to 6 ft.
Wed night..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 4 to 6 ft.
PZZ700 119 Pm Pdt Fri Mar 24 2017
Synopsis for far southern california coast.. At 1 pm...a 1026 mb high was 45 nm northwest of point conception and a 1020 mb low was over extreme northern baja. Moderate onshore flow will continue through early Sunday with winds strengthening further Sunday night into Monday. 25 to 30 kt northwest wind gusts will be possible on Monday along with steep 10 foot seas...resulting in conditions hazardous to small craft. Moderate onshore flow occurs on Tuesday becoming weak onshore flow on Wednesday. A weak storm system may bring light showers on Saturday.

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 242018
afdsgx
area forecast discussion
national weather service san diego ca
118 pm pdt Fri mar 24 2017

Synopsis
Slightly cooler weather is on tap through Monday as a pair of weak,
low pressure troughs move over the state. Onshore flow will
increase, along with the marine layer and associated clouds, and
there may even be a few light showers along and west of the
mountains on Saturday. Strong northwest winds are likley over the
coastal waters on Monday. Dry and warmer again into the middle of
next week as onshore flow subsides. Another storm system is possible
for southern california late next week, with the potential for
strong winds.

Discussion For extreme southwestern california including orange...

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

skies were clear over the forecast area early this afternoon. At 1
pm pdt, surface pressure gradients were running 2-4 mbs onshore ksan
to the deserts, resulting in light wind reports, even near wind-
prone areas.

A pair of low pressure troughs will move over the state through
Monday. They may produce a few light showers along and west of the
mts on Saturday and again Monday. Most of the precip with these
systems will remain to the north of the forecast area, but both will
bring increasing onshore flow, with some strong wind gusts possible
in the mts/deserts, and hazardous small craft conditions in the
coastal waters.

Weak high pressure moves over the area on Sunday, and becomes a bit
stronger and more persistent by the middle of next week. This should
result in daytime temperatures climbing back above average tue
through thu.

The picture is muddied a bit more late next week as the various
models and model runs have been advertising a digging trough over
the west. Model solutions have been unstable with the track and
strength of this incipient storm system, so confidence is low at
this point for the weather late next week. The latest 12z solutions
are favoring dry weather, but the winds could still be rather strong.

Aviation
242000z... Through 25/0600 utc, primarily p6sm vis and few-sct clouds
aoa 20000 ft msl. 25/0600-1500 utc, bkn-ovc clouds gradually forming
in the coast and valleys and then eventually reaching the coastal
slopes by 25/1500 utc. Expect bases/tops to start out around 1000 ft
msl/2000 ft msl and then increase to 2000 ft msl/3000 ft msl by
25/1200 utc and then up to 2000-2500 ft msl/4500 ft msl by 25/1500
utc. Isolated showers possible over and west of the mountains by
25/1200 utc producing local vis 5 sm. Expect mountain obscuration of
coastal slopes by 25/1500 utc. Elsewhere, p6sm vis and sct-bkn
clouds AOA 15000 ft msl.

Marine
A trough moving through the region on Saturday will bring northwest
winds gusting to near 20 kt, choppy sea conditions, and possibly
some light showers. Although winds weaken early Sunday, northwest
winds are likely to strengthen again Sunday night through Monday,
with wind gusts likely reaching 25-30 kt on Monday for the inner and
outer waters. This, in addition to steep seas near 10 feet, will
result in hazardous conditions for small craft on Monday.

Beaches
Elevated swells from the west-northwest direction (around 285-290
degrees) will likely create above normal surf of 3-6 feet starting
Sunday and continuing through most of next week. An increased risk
of strong rip currents is likely as well.

Skywarn
Skywarn activation will not be needed through Saturday.

Sgx watches/warnings/advisories
Ca... None.

Pz... None.

Public... Jad
aviation/marine... Harrison


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 mi79 min NW 8 G 8.9 67°F
SDBC1 - 9410170 - San Diego, CA 31 mi37 min 66°F1021.9 hPa
TIXC1 - Tijuana River Reserve, CA 33 mi70 min NW 5.1 63°F 1023 hPa55°F
LJAC1 - 9410230 - La Jolla, CA 33 mi37 min NNW 8 G 8.9 63°F 64°F1021.8 hPa
LJPC1 - La Jolla, CA (073) 33 mi35 min NNW 7 3 ft
46254 34 mi37 min 62°F3 ft
46225 - Torrey Pines Outer, CA (100) 41 mi34 min 62°F4 ft
46258 47 mi25 min 62°F4 ft
46232 - Point Loma South, CA (191) 48 mi44 min 62°F5 ft
46242 - Camp Pendleton Nearshore, CA (043) 49 mi87 min 60°F3 ft
46224 - Oceanside Offshore, CA (045) 49 mi25 min 61°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 mi2.1 hrsW 1210.00 miClear66°F46°F49%1021.7 hPa
Ramona, Ramona Airport, CA19 mi62 minWNW 710.00 miFair61°F46°F60%1021.5 hPa
Campo, CA19 mi63 minWNW 10 mi62°F48°F60%1019.3 hPa

Wind History from SEE (wind in knots)
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Last 24hrW5CalmW4W4CalmCalmW4CalmCalmW4CalmCalmCalmCalmCalmCalm6SW7SW5W12W12W12W8W7
1 day ago6CalmW5
G13
W4W7W8W8W7
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SW4SW3S4SW5CalmCalmCalmW10W10W12W10W7SW10W10--W10
2 days ago55SW5S4SE3S4S6CalmE5CalmCalmCalmCalm----W8----W7W8SW10--W10W10

Tide / Current Tables for National City, San Diego Bay, California
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National City
Click for Map
Fri -- 01:49 AM PDT     1.67 feet Low Tide
Fri -- 04:36 AM PDT     Moonrise
Fri -- 06:46 AM PDT     Sunrise
Fri -- 07:42 AM PDT     5.54 feet High Tide
Fri -- 02:31 PM PDT     -0.38 feet Low Tide
Fri -- 03:46 PM PDT     Moonset
Fri -- 07:03 PM PDT     Sunset
Fri -- 08:46 PM PDT     4.85 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.41.81.722.83.84.75.45.55.14.12.81.50.3-0.3-0.30.31.42.73.94.74.84.43.6

Tide / Current Tables for San Diego, California
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San Diego
Click for Map
Fri -- 01:40 AM PDT     1.67 feet Low Tide
Fri -- 04:36 AM PDT     Moonrise
Fri -- 06:46 AM PDT     Sunrise
Fri -- 07:38 AM PDT     5.34 feet High Tide
Fri -- 02:21 PM PDT     -0.38 feet Low Tide
Fri -- 03:47 PM PDT     Moonset
Fri -- 07:03 PM PDT     Sunset
Fri -- 08:42 PM PDT     4.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.81.72.12.83.84.75.25.34.83.82.51.20.2-0.3-0.20.41.52.83.84.54.64.23.4

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 (21,6,7,8)
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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.