Saturday, March25, 2017 L-36.com


Marine Weather and Tides
San Diego, 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 7:06PM Saturday March 25, 2017 8:43 AM PDT (15:43 UTC) Moonrise 5:18AMMoonset 4:48PM Illumination 4% Phase: Waning Crescent; Moon at 28 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- 146 Am Pdt Sat Mar 25 2017
Today..Wind nw 10 to 15 kt. Wind waves 2 ft or less. SWell W 1 to 4 ft at 11 seconds. Slight chance of showers in the afternoon.
Tonight..Wind W 10 to 15 kt with gusts to 20 kt... Becoming to 10 kt after midnight. Wind waves 2 ft or less. SWell W 4 to 6 ft at 9 seconds.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 5 ft at 11 seconds.
Sun night..Wind W 10 to 15 kt with gusts to 20 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 to 10 kt...becoming W in the afternoon. Gusts to 20 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. SWell W 4 to 7 ft at 8 seconds.
Mon night..Wind nw 10 to 20 kt with gusts to 30 kt. Wind waves 5 ft. SWell W 5 to 8 ft.
Tue..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 7 ft.
Tue night..Wind nw 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 4 to 6 ft.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 5 to 6 ft.
Wed night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. SWell W 4 to 6 ft.
PZZ700 146 Am Pdt Sat Mar 25 2017
Synopsis for far southern california coast.. At 1 am...a 1023 mb high was over the southern california bight and a 1012 mb low was near death valley. A weak storm may bring light showers today. 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.

7 Day Forecast for Marine Location Near San Diego, CA
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location: 32.78, -117.23     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 251523
afdsgx
area forecast discussion
national weather service san diego ca
823 am pdt Sat mar 25 2017

Synopsis
A low pressure trough passing to the north will bring more clouds,
gusty winds, and isolated showers through this evening. A repeat
performance is expected on Monday as another system passes to the
north. Little precipitation is expected from either system. A break
between the two should ensure a fair and warmer day on Sunday.

Strong north winds are possible across the lower desert areas Monday
night as the second system digs southeast across arizona. Dry and
much warmer after Monday under a weak high pressure ridge aloft.

Discussion For extreme southwestern california including orange...

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

satellite imagery at 8 am pdt this morning showed extensive cloud
cover offshore, over the ca bight, heading east. NWS radar also
indicated a few light showers in this area. Farther east, a few
clouds were noted in the valleys, otherwise it was mostly clear
inland. The 12z miramar sounding had a very weak inversion based
near 2200 ft with a pw value of just over one-half inch. There was a
large 24-hr increase in westerly winds above 7k ft to between 35 and
60 kts. Winds at 6500 ft were west at 23 kts. This was in the
ballpark for reports from some of the higher mtn observation sites.

Surface pressure gradients were running 4-6 mbs onshore to the
deserts with a modest onshore trend.

Expect more clouds to develop eastward toward the mountains through
the morning with some isolated showers possible. Otherwise, it will
be partly to mostly cloudy at times and a bit cooler than yesterday.

No forecast changes at this time.

From previous discussion...

Short term (today through Monday)
A weak low pressure system is moving inland through southern
california early this morning. Light precipitation has moved
across southern california overnight with most of the light
measurable amounts from los angeles county westward with some
trace amounts possible over portions of orange and southwestern
san bernardino counties. Besides any light precipitation early
this morning... Widely scattered mostly light showers are expected
to spread southward across southwest california for late this
morning through this afternoon. High temperatures will cool to
around 5 degrees below average for today. Stronger onshore flow
will bring gusty west winds to the mountains and deserts into this
evening.

Dry and a little warmer for Sunday under weak high pressure...

then another weak low pressure system will move inland across
southern california late Sunday night and Monday bringing cooling
with high temperatures around 5 degrees below average. Gusty west
winds for the mountains and deserts are expected to be a little
stronger than today with precipitation chances less.

Long term (Tuesday through Friday)
For Tuesday... A low pressure system over arizona will bring gusty
north winds with high pressure aloft over northern california
bring a warming trend that will continue into Wednesday west of
the mountains and into Thursday for areas farther inland. This
will take high temperatures to around 5 degrees above average for
coastal areas... And 10 to 15 degrees average farther inland.

Around next Friday... Another low pressure system will move into
the southwest states. There remain differences among the global
models with the details and placement... But the trend of the past
24 hours has been to be farther inland... Such that a little
cooling with gusty north winds is possible on Friday... With
weakening winds and warming for next weekend.

Aviation
251453z... Areas of sct-bkn clouds in the 1500-10000 ft msl layer and
local vis 5 sm over and west of the mountains, and few-sct clouds in
the 5000-10000 ft msl with p6sm vis in the deserts, with possible
mountain obscuration of coastal slopes and isolated light showers
will continue through 26/0000 utc. 26/0000-1500 utc, areas of bkn
clouds will likely develop, initially in the 2000-8000 ft msl layer
over and west of the mountains and then in the 1500-3000 ft msl
layer by 26/0900 utc over the coast/valley areas and clearing out of
the mountains, with primarily p6sm vis except for possible mountain
obscuration of coastal slopes before 26/0900 utc. Meanwhile, p6sm
vis and few-sct clouds AOA 20000 ft msl in the deserts.

Through 26/0600 utc, west winds 15-25 kt with gusts of 40-45 kt over
mountain ridges and desert slopes will result in in mod-strong
up/downdrafts and llws. Winds and associated up/downdrafts and llws
diminishing after 26/0600 utc.

Marine
A low pressure trough moving across the region will create northwest
wind gusts near 20 kt, choppy seas, and isolated light showers at
times today. Although winds will weaken early Sunday, northwest
winds are expected to strengthen Sunday night through Monday night
as another system passes across the region. Gusts to 25-30 kt are
possible Monday, in addition to seas rising to near or above 10 ft.

This will likely result in hazardous conditions for small craft on
Monday. Conditions improve on Tuesday.

Beaches
West-northwest swells from around 285-290 degrees will create surf
of 3-6 feet Sunday through most of next week. This will be
accompanied by an increased risk of strong rip currents through the
period.

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

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

Pz... None.

Public... Jad/17
aviation/marine/beaches... 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 5 mi68 min NNE 1.9 G 2.9 56°F
SDBC1 - 9410170 - San Diego, CA 5 mi44 min 65°F1021.1 hPa (+1.1)
LJAC1 - 9410230 - La Jolla, CA 6 mi44 min NE 2.9 G 5.1 61°F 59°F1020.8 hPa (+1.2)
LJPC1 - La Jolla, CA (073) 6 mi84 min NNE 5.1 3 ft
46254 6 mi56 min 62°F3 ft
46225 - Torrey Pines Outer, CA (100) 14 mi53 min 61°F4 ft
46258 14 mi44 min 61°F3 ft
TIXC1 - Tijuana River Reserve, CA 15 mi59 min Calm 56°F 1022 hPa51°F
46232 - Point Loma South, CA (191) 20 mi33 min 62°F4 ft
46224 - Oceanside Offshore, CA (045) 30 mi44 min 61°F3 ft
46242 - Camp Pendleton Nearshore, CA (043) 32 mi76 min 59°F3 ft
46086 - San Clemente Basin 47 mi54 min WNW 14 G 18 58°F 60°F4 ft1020.5 hPa (+0.6)

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, San Diego International-Lindbergh Field, CA5 mi53 minNE 310.00 miMostly Cloudy58°F51°F78%1021.2 hPa
San Diego, Montgomery Field, CA6 mi51 minNNE 410.00 miMostly Cloudy55°F50°F83%1020.6 hPa
San Diego, North Island, Naval Air Station, CA6 mi52 minNE 410.00 miMostly Cloudy59°F52°F78%1020.5 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA8 mi49 minNNE 410.00 miMostly Cloudy59°F52°F78%1020.1 hPa
San Diego/El Cajon, Gillespie Field Airport, CA14 mi54 minN 010.00 miOvercast50°F46°F88%1021 hPa
Imperial Beach, Naval Auxiliary Landing Field, CA15 mi48 minE 310.00 miPartly Cloudy56°F50°F81%1020.9 hPa
San Diego, Brown Field Municipal Airport, CA19 mi51 minNE 310.00 miOvercast54°F50°F87%1020.5 hPa

Wind History from SAN (wind in knots)
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Last 24hrCalmCalmNW6W7W5NW7W11NW11NW9NW8N8NW8NW5NW6CalmCalmNE4CalmNE3CalmNW4N3CalmNE3
1 day agoNW10W10NW7W7W11W11W9W10W9W8SW6W5NW5NW3CalmCalmE4E4CalmCalmCalmCalmCalmCalm
2 days agoW3NW5W9W10W8NW10W7W10W12W12NW9W10W11NW6W9W9W13
G20
W13W12W9W12W10NW8NW6

Tide / Current Tables for Crown Point, Mission Bay, California
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Crown Point
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Sat -- 02:33 AM PDT     1.08 feet Low Tide
Sat -- 05:18 AM PDT     Moonrise
Sat -- 06:45 AM PDT     Sunrise
Sat -- 08:15 AM PDT     5.43 feet High Tide
Sat -- 03:08 PM PDT     -0.54 feet Low Tide
Sat -- 04:48 PM PDT     Moonset
Sat -- 07:04 PM PDT     Sunset
Sat -- 09:05 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
2.41.61.21.11.72.73.94.95.45.34.63.42.10.8-0.1-0.5-0.30.723.44.44.84.63.9

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Sat -- 02:42 AM PDT     0.00 knots Slack
Sat -- 05:18 AM PDT     Moonrise
Sat -- 05:51 AM PDT     1.54 knots Max Flood
Sat -- 06:45 AM PDT     Sunrise
Sat -- 08:39 AM PDT     -0.00 knots Slack
Sat -- 11:56 AM PDT     -2.23 knots Max Ebb
Sat -- 03:19 PM PDT     0.00 knots Slack
Sat -- 04:48 PM PDT     Moonset
Sat -- 06:26 PM PDT     1.81 knots Max Flood
Sat -- 07:04 PM PDT     Sunset
Sat -- 09:26 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.5-1.2-0.50.20.91.41.51.30.6-0.3-1.3-2-2.2-1.9-1.2-0.30.61.41.81.71.30.4-0.5-1.4

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 (11,2,3,4)
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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.