Thursday, May24, 2018 L-36.com


Marine Weather and Tides
National City, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:42AMSunset 7:48PM Thursday May 24, 2018 7:07 AM PDT (14:07 UTC) Moonrise 3:16PMMoonset 3:01AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 223 Am Pdt Thu May 24 2018
Today..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 4 ft at 15 seconds. Areas of drizzle in the morning.
Tonight..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 12 seconds and S 3 ft at 14 seconds. Patchy drizzle after midnight.
Fri..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 to 4 ft in the afternoon. Mixed swell W 2 ft at 12 seconds and S 3 ft at 14 seconds. Areas of drizzle in the morning.
Fri night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. Mixed swell W 3 ft at 11 seconds and S 2 to 3 ft at 13 seconds. Areas of drizzle after midnight.
Sat..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft. Mixed swell W 3 ft at 8 seconds and S 2 ft at 13 seconds. Areas of drizzle in the morning.
Sat night..Wind sw 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 3 ft in the evening... Becoming 2 ft or less. Mixed swell W 3 to 4 ft and S 2 ft.
Sun..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 ft.
Sun 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. Mixed swell W 3 to 4 ft and sw 2 ft.
Memorial day..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft.
Mon night..Wind S 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft.
PZZ700 223 Am Pdt Thu May 24 2018
Synopsis for the far southern california coast.. At 2 am, a 1018 mb high was 150 nm northwest of san francisco and a 1009 mb low was near lake havasu. Weak onshore flow will prevail today, strengthening for Friday and Saturday. Onshore flow will weaken Sunday and Monday.

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 241033
afdsgx
area forecast discussion
national weather service san diego ca
333 am pdt Thu may 24 2018

Synopsis
A slow moving low pressure system moving inland through california
will maintain a deeper marine layer and stronger onshore flow into
the weekend. Into Saturday... There be some drizzle for coastal
and valley areas during nights and mornings with limited or no
afternoon clearing towards the coast. There will be periods of
stronger and gusty southwest to west winds for the mountains and
deserts from Friday afternoon into Saturday evening. For Sunday
through Tuesday... Low pressure over the western states will
weaken. There will be a warming trend away from the coast with
high temperatures for the deserts warming to around 5 degrees
above average for Monday and Tuesday. Night and morning coastal low
clouds will extend into portions of the valleys with afternoon
clearing getting closer to the coast.

Discussion For extreme southwestern california including orange...

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

Short term (today through Saturday)
A low pressure system off the california coast will move slowly
inland for tonight through Saturday. This will maintain onshore
flow... Strongest for Friday and Saturday with periods of stronger
and gusty southwest to west winds in the mountains and deserts
from Friday afternoon into Saturday evening.

The marine layer is near 4500 feet deep with aircraft soundings
showing a saturated layer from around 1500 feet to around 4500
feet. There has been some drizzle overnight with the greatest
coverage in coastal and valley areas of san diego county into
coastal orange county with widespread reports of 0.01 inch of
precipitation. This deeper marine layer will continue into
Saturday with soundings from the local workstation WRF having a
saturated layer of similar depth for each night through morning
with that layer still moist but not saturated in the afternoons.

Drizzle is expected each night through morning with patchy drizzle
possibly continuing into the early afternoon in some locations.

Limited or no clearing is expected for coastal areas.

There will be little change in high temperatures for coastal and
valley areas with high temperatures near the coast a few degrees
below average and 10 to locally 15 degrees below average for the
inland valleys. Slow cooling is expected for the mountains and
deserts.

Long term (Sunday through Wednesday)
Low pressure will weaken over the western states for Sunday
through Tuesday. The marine layer will become a little less deep
each day... Though low clouds will still extend into portions of
the inland valleys for Sunday night into Monday morning and Monday
night into Tuesday morning. There will be greater and faster
clearing towards the coast though afternoon clearing at the coast
could continue to be slow or limited.

There will be a warming trend for Sunday through Tuesday with high
temperatures for inland areas on Monday and Tuesday around 5
degree above average. A weaker low pressure system moving inland
along the west coast will bring a cooling trend beginning
Wednesday.

Aviation
240945z... Coast valleys coastal mountain slopes... Low clouds with
bases 1300 to 2500 ft msl and tops to 4000 ft msl continuing west of
the mountains this morning. Higher terrain will be obscured through
mid-morning. Clouds slowly clearing inland 16-20z, with only partial
clearing in the coastal areas. Clouds will quickly spread back
inland after 25 02z with similar bases and tops.

Mountain crests desert mountain slopes deserts... Skc and
unrestricted visibility through Friday morning. Sw-w winds with sfc
gusts 25-35 kt may produce localized llws with mod uddfs over the
mountain crests and into the deserts.

Marine
West northwest winds with gusts near 20 knots are possible Friday
and Saturday afternoon evening. Winds will weaken Sunday into early
next week.

Beaches
A long-period south swell of 3-4 ft 15-16 sec will continue to
produce elevated surf and hazardous swimming conditions through this
afternoon mainly in orange and northern san diego counties. Sets to
7 ft are possible. Surf will begin subsiding tonight.

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

Sgx watches warnings advisories
Ca... Beach hazards statement through this afternoon for orange county
coastal areas-san diego county coastal areas.

Pz... None.

Public... 17
aviation marine beaches... Ss


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 4 mi55 min 65°F1017.4 hPa
TIXC1 - Tijuana River Reserve, CA 7 mi82 min WNW 4.1 59°F 1018 hPa56°F
LJPC1 - La Jolla, CA (073) 15 mi47 min W 6 2 ft
LJAC1 - 9410230 - La Jolla, CA 15 mi55 min W 5.1 G 8 59°F 1017.5 hPa
46254 16 mi67 min 64°F2 ft
46232 - Point Loma South, CA (191) 19 mi67 min 64°F4 ft
46258 21 mi67 min 64°F4 ft
46225 - Torrey Pines Outer, CA (100) 23 mi76 min 64°F4 ft
46224 - Oceanside Offshore, CA (045) 40 mi67 min 64°F4 ft
46242 - Camp Pendleton Nearshore, CA (043) 42 mi69 min 64°F4 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 mi75 minW 510.00 miLight Drizzle60°F54°F80%1017.3 hPa
San Diego, San Diego International-Lindbergh Field, CA5 mi76 minW 57.00 miLight Rain60°F55°F84%1017.9 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA6 mi71 minW 510.00 miLight Rain60°F54°F80%1017.8 hPa
San Diego, Brown Field Municipal Airport, CA10 mi74 minWSW 67.00 miLight Rain57°F55°F93%1017.4 hPa
San Diego, Montgomery Field, CA11 mi74 minWSW 55.00 miFog/Mist59°F55°F87%1017.3 hPa
Gillespie Field Airport, CA14 mi72 minno data6.00 miFog/Mist59°F55°F88%1017.3 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi72 minWSW 710.00 miOvercast61°F54°F78%1016.9 hPa

Wind History from NZY (wind in knots)
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Last 24hrCalmS5SW6W7W9W8W11W12W11W9W10W7W7W7W6W8SW5SW4SW4W4W3W7W5W4
1 day agoS5S6SW8SW9SW10SW9W8W9W7W8W6W6W5W3CalmSW3S4S5S6SE5S5S6S6S4
2 days agoS8S11S10SW11S8SW11S10S10W6SW9W8W8SW5SW6SW5SW4SW6SW6SW7SW5S5S4S4S5

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Thu -- 01:00 AM PDT     1.14 feet Low Tide
Thu -- 03:00 AM PDT     Moonset
Thu -- 05:44 AM PDT     Sunrise
Thu -- 06:38 AM PDT     4.65 feet High Tide
Thu -- 12:52 PM PDT     0.22 feet Low Tide
Thu -- 03:15 PM PDT     Moonrise
Thu -- 07:20 PM PDT     5.96 feet High Tide
Thu -- 07:46 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.11.42.13.144.54.64.23.32.21.20.40.20.61.62.94.35.45.95.85.142.7

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Thu -- 01:23 AM PDT     0.00 knots Slack
Thu -- 03:00 AM PDT     Moonset
Thu -- 04:15 AM PDT     1.14 knots Max Flood
Thu -- 05:44 AM PDT     Sunrise
Thu -- 06:49 AM PDT     -0.00 knots Slack
Thu -- 10:00 AM PDT     -1.62 knots Max Ebb
Thu -- 01:17 PM PDT     0.00 knots Slack
Thu -- 03:16 PM PDT     Moonrise
Thu -- 04:37 PM PDT     1.73 knots Max Flood
Thu -- 07:38 PM PDT     -0.00 knots Slack
Thu -- 07:46 PM PDT     Sunset
Thu -- 10:45 PM PDT     -1.78 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.20.40.91.110.6-0.1-0.9-1.4-1.6-1.4-0.9-0.20.51.21.61.71.30.6-0.3-1.2-1.7-1.8

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 (10,2,3,4)
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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.