Monday, May22, 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 5:43AMSunset 7:48PM Monday May 22, 2017 10:35 AM PDT (17:35 UTC) Moonrise 3:41AMMoonset 4:25PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 216 Am Pdt Mon May 22 2017
Today..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 11 seconds and S 2 to 3 ft at 16 seconds.
Tonight..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 1 to 2 ft at 10 seconds and S 2 ft at 15 seconds.
Tue..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 1 to 2 ft at 10 seconds and S 2 ft at 14 seconds.
Tue night..Wind W to 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 9 seconds and sw 2 ft at 14 seconds.
Wed..Wind W to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 11 seconds and S 1 to 2 ft at 14 seconds.
Wed night..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 to 2 ft.
Thu..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 1 to 2 ft and sw 1 to 2 ft.
Thu night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 to 2 ft. Slight chance of showers after midnight.
Fri..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 1 to 2 ft and sw 2 ft. Slight chance of showers in the morning.
Fri night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft.
PZZ700 216 Am Pdt Mon May 22 2017
Synopsis for far southern california coast.. At 2 am... A 1026 mb high was 600 nm west of cape mendocino and a 1008 mb low was over the lake havasu area. Weak to moderate onshore flow will continue through Friday.

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 221652
afdsgx
area forecast discussion
national weather service san diego ca
945 am pdt Mon may 22 2017

Synopsis
Continued hot in the inland empire and the lower deserts through
Tuesday with high pressure aloft. Cooler near the coast with night
and morning low clouds and dense fog. Cooling will spread farther
inland Wednesday as the high weakens. Further cooling Thursday and
Friday with a trough of low pressure moving inland. This trough may
produce areas of light rain or drizzle west of the mountains Friday
morning. Dry and warm over the weekend with weak high pressure aloft.

Discussion For extreme southwestern california including orange...

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

a weak shortwave trough passed overhead last night and deepened the
marine layer just enough so that low clouds/dense fog extended 10
miles inland. The marine layer was 800-1000 feet deep this morning
with a strong 10c inversion just above.

Satellite image showed an expansive area of low clouds over the
coastal waters stretching from the ca/or border southward to central
baja. The low clouds cleared back to the coast fairly quickly this
morning, but may linger at a few of the beaches through early
afternoon.

Weak ridging aloft takes place tonight with 5h rises of 20 dm
tonight. This should suppress the marine layer slightly, and if that
happens the low clouds/dense fog would not extend quite as far
inland Tuesday morning.

Coastal and western valley temperatures at 9 am were running a few
degrees cooler than 24 hours ago, while the lower deserts were 2-4
degrees higher where it will be another unseasonably hot day with
highs from 107-110. Tuesday will just as hot too, but record highs
appear a little out of reach. The record at palm springs today is
113, and is 114 Tuesday. This early season heat will elevate the
heat risk in the lower deserts.

The upper ridge weakens Wednesday and a slowly deepening marine
layer will send low clouds a little farther into the valleys
Wednesday morning. The valley highs Wednesday will be about 10
degrees lower, while the lower deserts will be about 5 degrees
lower.

*from previous forecast*

Long term (Thursday through Sunday)
A trough of low pressure over the western states will bring
stronger onshore flow for Thursday and Friday. Periods of strong
gusty winds are expected for the mountains and deserts and could
be near advisory strength at times. Greater cooling will spread
inland with high temperatures for inland areas around 10 degrees
below average on Friday. The marine layer will deepen enough for
coastal low cloud and fog to extend into the inland valleys for
late Wednesday night into Thursday morning with continued
deepening taking it onto the coastal mountain slopes Thursday
night into Friday morning. The lower resolution global models
along with the 6-km local workstation WRF with GFS boundary
conditions all show light precipitation from the coast waters
inland to the coastal mountain slopes for late Thursday night into
Friday morning. A slight chance of showers has been added to the
forecast for this time period... But any rainfall is expected to be
light.

For next weekend... High pressure aloft will return along the west
coast bringing a warming trend for inland areas with high
temperatures warming to a few degrees above average by memorial
day. Areas of night and morning low clouds and the marine layer
will keep high temperatures near the coast near average.

Aviation
221633z... Coast/valleys... Through 23/0200 utc, mostly skc and p6sm
vis, except at/near the beaches where bkn-sct clouds 1000-1500 ft
msl may linger. Marine layer inversion strength of 10 deg c. 23/0200-
1600 utc, low stratus/dense fog likely re-developing about 10-15 sm
inland with bases 300-600 ft msl and tops 700-1000 ft msl, with
areas of vis 1/4-2 sm. Confidence in cig heights and vis for ksan,
kcrq and ksna tafs is moderate with moderate confidence in timing
and high confidence in low stratus/fog occurrence.

Mountains/deserts... P6sm vis and mostly skc through Tuesday morning.

Marine
A shallower marine layer will likely bring dense fog to the coastal
waters tonight into Tuesday morning, producing visibilities of 1 nm
or less.

Also, 20 kt northwest wind gusts will be possible over the outer
waters near san clemente island each late afternoon and early
evening through Friday.

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... Moede
aviation/marine... 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 mi59 min W 6 G 7 61°F
SDBC1 - 9410170 - San Diego, CA 5 mi59 min 68°F1015.3 hPa
LJAC1 - 9410230 - La Jolla, CA 6 mi59 min NW 2.9 G 5.1 64°F 61°F1014.6 hPa
LJPC1 - La Jolla, CA (073) 6 mi75 min WNW 2.9 2 ft
46254 6 mi77 min 67°F2 ft
46225 - Torrey Pines Outer, CA (100) 14 mi74 min 64°F3 ft
46258 14 mi65 min 65°F3 ft
TIXC1 - Tijuana River Reserve, CA 15 mi110 min NW 4.1 62°F 1016 hPa59°F
46232 - Point Loma South, CA (191) 20 mi54 min 66°F4 ft
46224 - Oceanside Offshore, CA (045) 30 mi65 min 63°F3 ft
46242 - Camp Pendleton Nearshore, CA (043) 32 mi97 min 63°F3 ft
46086 - San Clemente Basin 47 mi105 min NW 1.9 G 3.9 56°F 62°F4 ft1015.2 hPa (+1.8)

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 mi44 minWNW 510.00 miA Few Clouds69°F59°F70%1015.4 hPa
San Diego, Montgomery Field, CA6 mi42 minN 010.00 miFair71°F54°F55%1014.7 hPa
San Diego, North Island, Naval Air Station, CA6 mi43 minW 610.00 miPartly Cloudy64°F57°F78%1014.8 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA8 mi40 minNW 510.00 miA Few Clouds75°F55°F52%1014.3 hPa
San Diego/El Cajon, Gillespie Field Airport, CA14 mi48 minN 010.00 miClear70°F59°F69%1014.9 hPa
Imperial Beach, Naval Auxiliary Landing Field, CA15 mi39 minWNW 68.00 miPartly Cloudy65°F57°F76%1015.2 hPa
San Diego, Brown Field Municipal Airport, CA19 mi42 minVar 410.00 miFair70°F59°F68%1014.4 hPa

Wind History from NZY (wind in knots)
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Last 24hrW5W7W8W9W8NW10NW6W6W5W5NW5W4CalmS3CalmNW4NW6NW4NW8NW6W4NW3NW4W6
1 day agoNW13NW12NW14NW15NW16NW15--W10W7W5SW3Calm----Calm----CalmNW4Calm--S3W4W4
2 days agoNW9NW12NW13NW14NW13NW15NW14N14N17N11N12N8----N3----Calm------CalmNW3NW10

Tide / Current Tables for Crown Point, Mission Bay, California
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Crown Point
Click for Map
Mon -- 01:54 AM PDT     0.43 feet Low Tide
Mon -- 03:41 AM PDT     Moonrise
Mon -- 05:45 AM PDT     Sunrise
Mon -- 07:31 AM PDT     4.32 feet High Tide
Mon -- 01:39 PM PDT     0.46 feet Low Tide
Mon -- 04:24 PM PDT     Moonset
Mon -- 07:44 PM PDT     5.91 feet High Tide
Mon -- 07:46 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.60.40.81.62.73.74.24.33.8321.10.60.51.12.23.54.85.75.95.44.43.1

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Mon -- 02:06 AM PDT     0.00 knots Slack
Mon -- 03:40 AM PDT     Moonrise
Mon -- 05:04 AM PDT     1.37 knots Max Flood
Mon -- 05:45 AM PDT     Sunrise
Mon -- 07:52 AM PDT     -0.00 knots Slack
Mon -- 10:51 AM PDT     -1.68 knots Max Ebb
Mon -- 01:50 PM PDT     0.00 knots Slack
Mon -- 04:24 PM PDT     Moonset
Mon -- 05:08 PM PDT     1.83 knots Max Flood
Mon -- 07:45 PM PDT     Sunset
Mon -- 08:10 PM PDT     -0.00 knots Slack
Mon -- 11:24 PM PDT     -2.28 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.5-0.9-0.10.61.21.41.20.7-0.1-0.9-1.5-1.7-1.4-0.70.111.61.81.71.10.2-0.9-1.7-2.2

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 (13,3,4,5)
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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.