Thursday, April27, 2017 L-36.com


Marine Weather and Tides
National City, 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 6:02AMSunset 7:29PM Thursday April 27, 2017 11:42 AM PDT (18:42 UTC) Moonrise 7:17AMMoonset 9:05PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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
    EDIT      (on/off)   Help
PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 142 Am Pdt Thu Apr 27 2017
.small craft advisory in effect from this afternoon through late Friday night...
Today..Wind sw to 10 kt...becoming W with gusts to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. SWell W 5 to 8 ft at 9 seconds.
Tonight..Wind W 10 to 15 kt with gusts to 25 kt. Wind waves 4 ft. SWell W 7 to 10 ft at 9 seconds.
Fri..Wind nw 10 to 20 kt with gusts to 25 kt. Wind waves 4 ft. SWell W 6 to 9 ft at 10 seconds.
Fri night..Wind nw 10 to 20 kt with gusts to 25 kt...becoming ne to 10 kt after midnight. Wind waves 3 to 4 ft in the evening... Becoming 2 ft or less. SWell W 6 to 9 ft at 10 seconds.
Sat..Wind N 10 kt...becoming nw in the afternoon. Gusts to 20 kt. Wind waves 2 ft or less. SWell W 4 to 7 ft at 11 seconds.
Sat night..Wind nw 10 to 15 kt with gusts to 20 kt in the evening...becoming variable less than 10 kt. Wind waves 3 to 4 ft in the evening...becoming 2 ft or less. SWell nw 3 to 5 ft.
Sun..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell nw 2 to 3 ft and sw 3 ft.
Sun night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft.
Mon..Wind variable less than 10 kt...becoming sw 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft.
Mon night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft.
PZZ700 142 Am Pdt Thu Apr 27 2017
Synopsis for far southern california coast.. At 1 am...a 1016 mb high was near the channel islands and a 1003 mb low was near needles. Gusty winds and choppy seas will continue through Friday night with the small craft advisory remaining in place. Weak to moderate offshore flow Saturday morning before becoming weak to moderate onshore Saturday afternoon through Monday.

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


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 271633
afdsgx
area forecast discussion
national weather service san diego ca
930 am pdt Thu apr 27 2017

Synopsis
Areas of low clouds this morning will gradually clear, with mostly
sunny skies this afternoon. Low clouds will just be patchy tonight
as areas of northeast winds develop below passes and canyons. The
winds will become locally strong Friday night and Saturday morning
but diminish rapidly Saturday afternoon. Otherwise, fair weather
will prevail through the middle of next week with temperatures
averaging a little above normal, except for a very warm day Saturday
.

Discussion For extreme southwestern california including orange...

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

low clouds covered san diego county coastal areas and parts of the
orange county coast at mid-moring, with some high clouds drifting
over the region. It may take until around noon for the stratus to
clear san diego county, but overall fair weather will prevail today
with temperatures similar to those from Wednesday.

Broad low pressure aloft covered much of the contiguous us with a
high pressure ridge over the east pacific. A shortwave moving
southeast from the pacific northwest will help amplify the interior
western us part of the trough while the upper high off the coast
also amplifies, and the resulting north flow aloft will combine with
a surface high moving into the great basin to produce increasing
offshore flow from tonight through Saturday morning. With a stable
layer between about 750 and 650 mb north of the san bernardino
mountains, there is a potential of a strong mountain wave which
could drive strong winds into the valleys. Gust potential is greater
than 60 mph below cajon pass and in/just below the santa ana
mountains. Will consider a high wind watch for Friday night/Saturday
morning for the afternoon forecast package for the inland empire and
orange county. The marine layer should be wiped out for a while with
the offshore flow, and temperatures should increase west of the
mountains Friday and especially Saturday. Some highs in the 90s will
be possible Saturday in the valleys and even some areas 15 miles
inland from the coast. Onshore flow rapidly returns by Sunday, so it
will be cooler west of the mountains. The upper high over the east
pacific could move into california early next week, but with onshore
flow, a marine layer will form beneath the subsidence of the high
and keep the coast cool with some stratus at times, while inland
areas will be quite warm, generally in the 90s in the lower deserts
and 80s in the valleys for highs.

Aviation
271532z... Coast/valleys... Bkn-ovc stratus about 10-25 sm inland with
bases 1200-1700 ft msl and tops around 2000 ft msl will clear to the
coastal waters through 1900 utc. 1900-28/1500 utc... Primarily p6sm
vis and sct-bkn clouds AOA 20000 ft msl, with possibly some patches
of bkn clouds 1000-2000 ft msl within 15-25 sm inland during the
28/0300-1500 utc time-frame.

Mountains/deserts... After 28/0000 utc, W winds 15-25 kt with gusts
35-40 kt along mountain ridges, desert slopes and through the
passes, resulting in mod-strong uddfs/llws over and east of the
mountains. Vis briefly reduced in bldu and sand in the deserts.

Otherwise, sct-bkn cloud layers AOA 20000 ft msl and p6sm vis
through Friday morning.

Marine
Northwest winds over the outer waters will continue to gust 25-30 kt
through late Friday night. In addition to the winds, short-period
seas will increase to 9-12 ft. A small craft advisory for the outer
waters starts continues through late Friday night.

For the inner waters, outer portions of that zone may get 25 kt
gusts by late this afternoon, with more widespread strong winds
likely late Friday, along with steep seas. A small craft advisory
for the inner waters starts 3 pm today and continues through late
Friday night.

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

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

Pz... Small craft advisory until 5 am pdt Saturday for waters from san
mateo point to the mexican border extending 30 to 60 nm out
including san clemente island.

Small craft advisory from 3 pm this afternoon to 5 am pdt
Saturday for coastal waters from san mateo point to the
mexican border and out to 30 nm.

Public... Maxwell
aviation/marine... Harrison


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IIWC1 - 9410172 - USS Midway South Navy Pier, San Diego, CA 4 mi67 min W 5.1 G 6 62°F
SDBC1 - 9410170 - San Diego, CA 4 mi43 min 68°F1010.7 hPa (+0.0)
TIXC1 - Tijuana River Reserve, CA 7 mi58 min W 4.1 64°F 1012 hPa60°F
LJAC1 - 9410230 - La Jolla, CA 15 mi43 min WSW 4.1 G 5.1 65°F 62°F1010 hPa (+0.3)
LJPC1 - La Jolla, CA (073) 15 mi143 min WSW 1 6 ft
46254 16 mi115 min 64°F6 ft
46232 - Point Loma South, CA (191) 19 mi122 min 62°F9 ft
46258 21 mi133 min 65°F8 ft
46225 - Torrey Pines Outer, CA (100) 23 mi142 min 64°F6 ft
46224 - Oceanside Offshore, CA (045) 40 mi133 min 64°F6 ft
46242 - Camp Pendleton Nearshore, CA (043) 42 mi75 min 64°F5 ft

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
(wind in knots)    EDIT      (on/off)   Help
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last
24hr
W5
S9
SW9
G12
S10
S8
G11
S8
G11
SW6
W4
S4
S4
S5
SW6
S6
S4
SE1
G4
S1
G4
SE2
G5
S9
G12
S6
S3
S1
G5
SE1
S1
G4
SW3
1 day
ago
SW9
W7
G11
W11
W9
W9
W11
G14
W8
W7
W7
W5
W4
SW2
SW3
S3
S2
SE1
--
--
NE1
--
S1
SE1
W3
W3
2 days
ago
S13
G16
SW12
G16
S9
S12
S12
G17
SW9
G12
SW8
G11
S8
S2
G6
SE1
S7
S8
S8
SW7
S6
S4
G10
S7
S5
G8
S4
G10
S7
G14
S4
G11
S13
G17
S9
G15
S5
G10

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, North Island, Naval Air Station, CA5 mi51 minW 610.00 miOvercast65°F57°F76%1010.2 hPa
San Diego, San Diego International-Lindbergh Field, CA5 mi52 minWNW 710.00 miOvercast65°F57°F78%1010.8 hPa
Imperial Beach, Naval Auxiliary Landing Field, CA6 mi47 minWNW 56.00 miLight Drizzle60°F57°F90%1010.7 hPa
San Diego, Brown Field Municipal Airport, CA10 mi50 minNW 410.00 miOvercast65°F57°F76%1010.1 hPa
San Diego, Montgomery Field, CA11 mi50 minN 010.00 miOvercast63°F55°F78%1010.4 hPa
San Diego/El Cajon, Gillespie Field Airport, CA14 mi1.9 hrsVar 610.00 miMostly Cloudy63°F55°F77%1010.5 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi48 minWSW 410.00 miOvercast67°F57°F71%1009.9 hPa

Wind History from NZY (wind in knots)
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last 24hrSW8SW9SW8SW8SW8SW9W8SW4S4S6SW6S6S5S6SW3S5S4S4CalmCalmSE4S4SW4W6
1 day agoW8W11NW10
G19
W11NW11
G21
NW11NW8NW8W5CalmCalmSW3S4CalmCalmCalmCalmN5E3CalmE3S3S5W7
2 days agoSW10S7S9S10SW10W8S5--S4SW4SW6SW7SW4S5S7SW6S5S8S8S12S12S7S6S6

Tide / Current Tables for National City, San Diego Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
National City
Click for Map
Thu -- 05:00 AM PDT     -1.35 feet Low Tide
Thu -- 06:05 AM PDT     Sunrise
Thu -- 07:17 AM PDT     Moonrise
Thu -- 11:09 AM PDT     5.08 feet High Tide
Thu -- 04:44 PM PDT     0.75 feet Low Tide
Thu -- 07:27 PM PDT     Sunset
Thu -- 09:05 PM PDT     Moonset
Thu -- 10:50 PM PDT     6.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.53.920.3-0.9-1.4-0.90.31.83.44.65.14.842.81.70.90.81.32.54.15.66.66.9

Tide / Current Tables for San Diego Bay Entrance, California Current
   EDIT      (on/off)   Help   One Week of Data
San Diego Bay Entrance
Click for Map
Thu -- 01:47 AM PDT     -2.69 knots Max Ebb
Thu -- 05:10 AM PDT     0.00 knots Slack
Thu -- 06:05 AM PDT     Sunrise
Thu -- 07:17 AM PDT     Moonrise
Thu -- 08:11 AM PDT     1.93 knots Max Flood
Thu -- 11:19 AM PDT     -0.00 knots Slack
Thu -- 02:06 PM PDT     -1.73 knots Max Ebb
Thu -- 04:53 PM PDT     0.00 knots Slack
Thu -- 07:27 PM PDT     Sunset
Thu -- 08:01 PM PDT     1.90 knots Max Flood
Thu -- 09:05 PM PDT     Moonset
Thu -- 11:03 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.8-2.5-2.7-2.2-1.3-0.20.91.61.91.81.20.3-0.6-1.4-1.7-1.5-0.80.111.71.91.710.1

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station San Diego, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.