Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
National City, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 6:23AMSunset 4:45PM Tuesday November 21, 2017 3:59 AM PST (11:59 UTC) Moonrise 10:00AMMoonset 8:31PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 215 Am Pst Tue Nov 21 2017
Today..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 9 seconds.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 ft at 11 seconds.
Wed..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 ft at 9 seconds.
Wed night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 11 seconds.
Thanksgiving day..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft at 10 seconds.
Thu night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft.
Sat..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft.
PZZ700 215 Am Pst Tue Nov 21 2017
Synopsis for the far southern california coast.. At 2 am pst...a 1027 mb high was over central utah and a 1010 mb low was near catalina. Mainly weak onshore flow will continue through Saturday.

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 211117
afdsgx
area forecast discussion
national weather service san diego ca
317 am pst Tue nov 21 2017

Synopsis
High pressure aloft will dominate the weather pattern through
thanksgiving weekend. High temperatures will be 15 to 25 degrees
above average on Wednesday and thanksgiving, with numerous daily
record highs forecast west of the mountains. A slow cooling trend
will begin Friday, but above average temperatures will continue
into early next week. It is increasingly likely that san diego
will fail to record measurable rainfall in november for the first
time since 1980.

Discussion For extreme southwestern california including orange...

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

at 3 am... A upper level ridge had seized control of the region
bringing warming below 850 mb. This, along with numerous cirrus
above 20,000 ft msl streaming around the northern periphery of the
ridge was keeping temperatures 5-10 degrees warmer than this time
yesterday. Winds were predominantly light and variable from the
coast the the deserts.

Today will be the first day of a late season heat wave that will
impact the region through the thanksgiving holiday. A jump of 3-4
degrees c in the 850 mb temperatures today will allow afternoon
highs to climb 5-10 degrees from yesterdays readings. This will
bring upper 80s to the inland valleys and coachella valley and
upper 70s to the beaches and high desert. Widespread record
breaking temperatures are not anticipated today, though a few
sites like ramona and campo may have a punchers chance at a daily
record. Outside of the warmth, today will be defined by light
winds and decreasing high level clouds. Given the current ir
satellite, another colorful sunrise possible this morning.

Hard to add much value to the holiday forecast, as you would have
to be living under a rock not to know record breaking heat is on
the way. The ridge currently over the region should peak
Wednesday with 500 mb heights near 594 dm and 850 mb temperatures
around 22 degrees c west of the mountains. This will focus the
most intense warmth west of the mountains and make southern
california the warmest place in the CONUS on thanksgiving. Weak
offshore flow will accompany the heat Wednesday and on
thanksgiving, bringing local wind gusts of 25-40 mph to the
coastal slopes, canyons, and passes. When combined with relative
humidity values in the low teens and single digits, these winds
will produce elevated fire weather concerns. Greatest uncertainty
in the forecast revolves around coastal temperatures, where a
battle between a light sea breeze and the weak offshore winds will
dictate afternoon high temperatures.

A slow cooling trend will begin over the weekend as the
aforementioned ridge weakens and shifts slowly to the southeast.

Despite this, temperatures will remain 5-15 degrees above average
Saturday and Sunday, with the most significant cooling anticipated
next Monday when a weak trough passes to our north. For those
seeking rain, there is very little to look forward to in the long
range as dry conditions are favored through the end of november.

There is a high likelihood that san diego will fail to record
measurable rainfall in november for the first time since 1980.

Aviation
211010z... Sct-bkn clouds AOA fl200 and unrestricted vis through
Wednesday morning.

Marine
No hazardous marine weather is expected through Saturday.

Fire weather
Light santa ana winds (gusts 25-40 mph) will develop along the
coastal slopes and below the passes and canyons Wednesday and
linger into thanksgiving. Falling relative humidity values and
unseasonably hot temperatures will accompany the winds. Though
red flag conditions are not expected, elevated fire weather
conditions will still occur, and any fires that start may spread
quickly. Areas of greatest concern include: locations below the
cajon and banning passes, the canyons of the santa ana mountains,
and the coastal slopes in san diego county.

Skywarn
Skywarn activation will not be needed this week.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public fire weather... Albright
aviation marine... Ss


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 4 mi41 min 67°F1016.7 hPa
TIXC1 - Tijuana River Reserve, CA 7 mi74 min NE 1 53°F 1017 hPa42°F
LJPC1 - La Jolla, CA (073) 15 mi39 min SSE 1 1 ft
LJAC1 - 9410230 - La Jolla, CA 15 mi47 min SSE 2.9 G 4.1 61°F 63°F1015.7 hPa
46254 16 mi71 min 61°F1 ft
46232 - Point Loma South, CA (191) 19 mi48 min 66°F3 ft
46258 21 mi29 min 65°F2 ft
46225 - Torrey Pines Outer, CA (100) 23 mi68 min 63°F2 ft
46224 - Oceanside Offshore, CA (045) 40 mi29 min 62°F2 ft
46242 - Camp Pendleton Nearshore, CA (043) 42 mi91 min 61°F2 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 mi67 minNNW 310.00 miPartly Cloudy57°F48°F74%1016 hPa
San Diego, San Diego International-Lindbergh Field, CA5 mi68 minN 010.00 miMostly Cloudy57°F42°F58%1016.7 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA6 mi2.1 hrsNE 410.00 miFair55°F41°F59%0 hPa
San Diego, Brown Field Municipal Airport, CA10 mi66 minENE 510.00 miFair61°F32°F34%1015.8 hPa
San Diego, Montgomery Field, CA11 mi66 minNNE 310.00 miFair61°F37°F41%1016.1 hPa
Gillespie Field Airport, CA14 mi84 minN 010.00 miFair50°F37°F62%1016.6 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi2.1 hrsESE 410.00 miFair59°F37°F44%1015.7 hPa

Wind History from NZY (wind in knots)
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Last 24hr----CalmN3CalmCalmCalmNW6NW7W9NW9NW9NW8NW7NW7N5N3NW4CalmCalmN3N6N3NW3
1 day ago--------N3CalmCalm--NW5NW12NW11NW9NW9NW9N9N7NE4CalmCalm----------
2 days ago--------CalmN5NW4NW14NW11NW13NW18NW14N16N12N8NW4CalmN5N7----------

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Tue -- 03:50 AM PST     2.33 feet Low Tide
Tue -- 06:23 AM PST     Sunrise
Tue -- 08:59 AM PST     Moonrise
Tue -- 09:58 AM PST     6.12 feet High Tide
Tue -- 04:44 PM PST     Sunset
Tue -- 05:21 PM PST     -0.02 feet Low Tide
Tue -- 07:31 PM PST     Moonset
Tue -- 11:50 PM PST     3.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.93.52.92.52.32.63.34.25.25.96.15.85.13.92.61.40.500.10.61.52.53.33.8

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Tue -- 01:38 AM PST     -0.80 knots Max Ebb
Tue -- 04:00 AM PST     0.00 knots Slack
Tue -- 06:24 AM PST     Sunrise
Tue -- 07:08 AM PST     1.11 knots Max Flood
Tue -- 08:59 AM PST     Moonrise
Tue -- 10:11 AM PST     -0.00 knots Slack
Tue -- 01:57 PM PST     -1.87 knots Max Ebb
Tue -- 04:44 PM PST     Sunset
Tue -- 05:39 PM PST     0.00 knots Slack
Tue -- 07:31 PM PST     Moonset
Tue -- 08:36 PM PST     0.99 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.7-0.8-0.5-00.50.91.110.70.1-0.5-1.2-1.7-1.9-1.7-1.1-0.40.20.70.910.80.4

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 (6,6,7,8)
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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.