Friday, August23, 2019 L-36.com


Marine Weather and Tides
National City, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:16AMSunset 7:25PM Friday August 23, 2019 12:39 AM PDT (07:39 UTC) Moonrise 12:00AMMoonset 1:34PM Illumination 48% Phase: Third Quarter Moon; Moon at 22 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- 108 Pm Pdt Thu Aug 22 2019
Tonight..Wind S 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft after midnight. Mixed swell W 2 to 4 ft at 10 seconds and sw 2 to 3 ft at 18 seconds.
Fri..Wind S 10 to 15 kt. Wind waves 3 ft in the morning... Becoming 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and sw 2 to 3 ft at 16 seconds.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 to 3 ft at 16 seconds.
Sat..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 to 4 ft at 15 seconds.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 12 seconds and S 3 to 6 ft at 14 seconds.
Sun..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 S 4 to 6 ft.
Sun night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 5 to 6 ft.
Mon..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 5 ft.
Mon night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 to 5 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft and S 3 ft.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 ft and S 2 to 3 ft.
PZZ700 108 Pm Pdt Thu Aug 22 2019
Synopsis for the far southern california coast.. At 1 pm, a 1004 mb low was over laughlin, nevada and a 1012 mb high was over flagstaff, arizona. Areas of gusty southerly winds around 15 knots will continue through the afternoon into tonight across the coastal waters. Weak onshore flow will prevail through Monday with a coastal eddy at times.


7 Day Forecast for Marine Location Near National City, CA
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location: 32.67, -117.12     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 230355
afdsgx
area forecast discussion
national weather service san diego ca
855 pm pdt Thu aug 22 2019

Synopsis
A weak trough will bring cooling through Friday as the marine layer
deepens, spreading low clouds and patchy fog into the valleys. High
pressure builds back in this weekend, flattening the marine layer
and bringing warmer days. Some monsoonal moisture will make its way
back into socal this weekend, bringing an increase in humidity, high
clouds, and some afternoon cumulus clouds over the mountains.

Discussion For extreme southwestern california including orange...

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

at 8 pm pdt... Satellite imagery showed stratus over the ca bight and
invading an area of NW san diego county. The 00z miramar sounding
had an 11c inversion based near 1900 ft msl with a deep southerly
flow around 10 kt from the sfc to around 7k ft. The sfc pressure
gradients from ksan to the deserts were moderately onshore,
supporting westerly wind gusts 25-35 mph with a peak gust of 44 mph
near whitewater.

A vigorous eddy circulation off the coast will keep gusty southerly
winds along the coast and help to drive marine clouds farther inland
tonight, perhaps reaching the inland empire by morning. The deeper
marine layer will bring more cooling inland on Friday as well. No
forecast updates this evening.

From previous discussion...

for this weekend, high pressure builds into california, warming
inland areas to slightly above average. The marine layer will be
a little shallower this weekend and spread less far inland. Only
minor variations in temperatures expected through the middle part
of next week. Monday and Tuesday look like the warmest days in the
coming week.

Monsoonal moisture will make a return this weekend and into next
week bringing an increase in humidity for the inland areas. There
will be high clouds and some afternoon cumulus clouds near the
mountains. It doesn't appear the the moisture increase will be
sufficient enough for afternoon thunderstorms, so chances of
thunderstorms have been kept out of the forecast.

Aviation
230345z... Coast valleys... Bkn-ovc stratus will spread through most
coastal areas by 05z and many of the valleys by 10z fri. Bases will
mostly be 1000-1500 ft msl with tops to 2000 ft msl overnight with a
slight increase in height after 12z fri. Higher terrain will be
obscured in clouds, though most vis will be 5+ miles below the
clouds. Clearing will be slow Friday, 15z-18z in the valleys and 18z-
21z near the coast with local bkn conditions possible after 21z fri.

Stratus will develop again Friday evening but likely with lower
bases than tonight.

Mountains deserts... Mostly clear with unrestricted visibility
through Friday evening.

Marine
No hazardous marine conditions are expected through Tuesday.

Beaches
South-southeast swells from 160-170 degrees with a 12-13 sec period
generated by tropical storm ivo will reach the beaches of southern
california late Sunday through Tuesday. These swells could produce
elevated surf locally up to 6 ft and strong rip currents on the more
southerly-facing beaches of orange county, though west facing
beaches, mainly san diego county, will have little or no effects. A
beach hazards statement is in effect for orange and san diego county
beaches Saturday night through Tuesday morning with biggest impacts
being elevated rip currents, including longshore currents.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... Beach hazards statement from late Saturday night through Tuesday
morning for orange county coastal areas-san diego county
coastal areas.

Pz... None.

Public... 10 connolly
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 4 mi58 min 71°F1009.2 hPa
46235 7 mi40 min 67°F3 ft
TIXC1 - Tijuana River Reserve, CA 7 mi115 min SE 1 62°F 1010 hPa59°F
LJAC1 - 9410230 - La Jolla, CA 15 mi58 min S 7 G 9.9 66°F 65°F1008.8 hPa
LJPC1 - La Jolla, CA (073) 15 mi80 min SE 2.9 G 6 2 ft
46254 16 mi42 min 66°F 70°F2 ft
46232 - Point Loma South, CA (191) 19 mi40 min 71°F4 ft
46258 21 mi40 min 70°F4 ft
46225 - Torrey Pines Outer, CA (100) 23 mi40 min 70°F3 ft
46224 - Oceanside Offshore, CA (045) 40 mi40 min 71°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, North Island, Naval Air Station, CA5 mi2.8 hrsS 510.00 miMostly Cloudy66°F60°F81%1009.3 hPa
San Diego, San Diego International-Lindbergh Field, CA5 mi1.8 hrsSE 510.00 miOvercast68°F61°F78%1009.8 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA6 mi1.7 hrsSE 59.00 miA Few Clouds66°F61°F84%1009.5 hPa
San Diego, Brown Field Municipal Airport, CA10 mi2.8 hrsN 09.00 miFair64°F57°F81%1009.1 hPa
San Diego, Montgomery Field, CA11 mi2.8 hrsSSW 410.00 miOvercast65°F59°F81%1009.3 hPa
Gillespie Field Airport, CA14 mi85 minN 010.00 miOvercast64°F59°F83%1009.1 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi1.7 hrsN 010.00 miOvercast69°F59°F70%1008.8 hPa

Link to 5 minute data for KNZY

Wind History from NZY (wind in knots)
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Last 24hrSE5SE5S5S3S6S8S6S7S7S8S10S9SW9S9S9S9S8S11S12SW8S6S5SE4SE6
1 day agoNW5NW4NW6NW4NW4N4N3CalmCalmW6W6W9W9NW8W8W8W8W6W7NW5NW4SW3S4S4
2 days agoN6N9N4N5N4N7N6N7N6NW7W9NW13NW12W11NW13NW12NW12NW11NW10NW12NW7NW6NW6NW5

Tide / Current Tables for National City, San Diego Bay, California
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National City
Click for Map
Fri -- 03:44 AM PDT     3.42 feet High Tide
Fri -- 06:17 AM PDT     Sunrise
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 08:34 AM PDT     2.52 feet Low Tide
Fri -- 01:34 PM PDT     Moonset
Fri -- 03:42 PM PDT     5.23 feet High Tide
Fri -- 07:24 PM PDT     Sunset
Fri -- 11:36 PM PDT     1.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.83.13.43.43.332.72.62.52.73.13.74.34.85.25.254.53.83.12.41.81.5

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Fri -- 01:03 AM PDT     0.35 knots Max Flood
Fri -- 03:58 AM PDT     -0.00 knots Slack
Fri -- 06:17 AM PDT     Sunrise
Fri -- 06:49 AM PDT     -0.50 knots Max Ebb
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 09:19 AM PDT     0.00 knots Slack
Fri -- 12:40 PM PDT     0.63 knots Max Flood
Fri -- 01:34 PM PDT     Moonset
Fri -- 04:05 PM PDT     -0.00 knots Slack
Fri -- 07:24 PM PDT     Sunset
Fri -- 07:52 PM PDT     -1.14 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.30.2-0-0.2-0.4-0.5-0.4-0.10.20.50.60.60.50.30-0.4-0.8-1.1-1.1-1-0.7-0.4

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (3,6,7,8)
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Ground Weather Radar Station San Diego, 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.