Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Del Mar, CA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:06AMSunset 7:27PM Tuesday April 24, 2018 11:34 PM PDT (06:34 UTC) Moonrise 2:16PMMoonset 3:04AM Illumination 75% 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- 139 Pm Pdt Tue Apr 24 2018
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 14 seconds.
Wed..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft at 15 seconds. SWell S 3 ft.
Wed night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 14 seconds and S 3 ft at 16 seconds.
Thu..Wind W to 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 14 seconds and S 3 ft at 17 seconds.
Thu night..Wind nw to 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 13 seconds and S 3 ft at 17 seconds.
Fri..Wind W 10 to 15 kt. Gusts to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 3 to 4 ft and S 3 ft.
Fri night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. Mixed swell W 4 to 6 ft and S 3 ft.
Sat..Wind S 10 kt...becoming W with gusts to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 to 4 ft in the afternoon. Mixed swell W 4 to 6 ft and S 3 ft.
Sat night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 to 4 ft in the evening...becoming 2 ft or less. SWell W 4 to 6 ft.
Sun..Wind W 10 to 15 kt with gusts to 25 kt. Wind waves 2 ft or less...becoming 3 to 5 ft in the afternoon. SWell W 4 to 6 ft.
Sun night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 4 to 6 ft.
PZZ700 139 Pm Pdt Tue Apr 24 2018
Synopsis for the far southern california coast.. At 2 pm, a 1017 mb high was along the central california coast, and a trough of low pressure extended north through the interior of california from a 1011 mb low near needles. Weak onshore flow will continue through Wednesday, strengthening Thursday through Saturday.

7 Day Forecast for Marine Location Near Del Mar city, CA
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location: 32.9, -117.25     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 250414
afdsgx
area forecast discussion
national weather service san diego ca
913 pm pdt Tue apr 24 2018

Synopsis
Fair and seasonal weather will continue this week, with areas of
night and morning low clouds and fog west of the mountains. Lower
pressure aloft this weekend into next week will bring cooler
weather, and extend the marine layer inland.

Discussion For extreme southwestern california including orange...

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

at 8 pm pdt..Satellite imagery showed gathering stratus along the
coast as higher clouds thinned. Surface pressure gradients were up
to 8 mbs onshore ksan to the lower deserts but remained weak to the
ne and little changed from yesterday. Peak wind reports in wind-
prone areas of the mts deserts were in the 25 to 30 mph range. The
00z miramar sounding had a weak 4 degree c inversion based near 1200
ft msl. This was a few hundred feet below the weaker inversion
yesterday evening.

Based on the miramar sounding and other acars soundings, it appears
the marine layer inversion is near, or even a bit below where it was
last night. Also, the ridge over socal is holding fast. Because of
this we may again see some areas of fog forming just inland from the
coast and over the higher coastal terrain late tonight and Wednesday
morning. Grids and forecast zones have been updated accordingly.

From previous discussion...

heights gradually decrease Wednesday through Friday as the pattern
shifts with a trough developing over northern california.

Temperatures will remain above normal again Wednesday away from
the coast but look for significant inland cooling Thursday into
the weekend.

Onshore gradients will increase further and periods of gusty
onshore winds will be likely each afternoon and evening. Winds may
become strong enough to require a wind advisory by Friday. Much
cooler weather for Sunday through early next week. Upper level
trough will swing by to the north on Friday and Saturday with
periods of strong winds possibly continuing into Saturday night.

Cooler conditions will continue through at least the middle of
next week as another upper level trough deepens over socal Tuesday
and Wednesday next week with very cool conditions over inland
areas and periods of strong winds possible. Still a lot of
disagreement with the strength of the trough but better consensus
that it could drop far enough south and with enough cold air aloft
to bring a chance of showers to portions of socal. Haven't added
any pops to the forecast yet until we have a little better run to
run continuity.

Aviation
250400z... Coast valleys... Areas of bkn-ovc stratus along the
immediate coast will spread inland later tonight, reaching 10-20
miles inland by 09z. Bases will likely lower slightly from current
levels and be 600-900 ft msl with tops to 1200 ft msl. Areas of vis
2-4 miles with local vis below 1 mile will occur over higher coastal
terrain 07z-15z, and some coastal valleys could have local fog with
vis below 1 mile. Most areas will clear 16z-19z wed, with stratus
likely developing again Wednesday evening. Otherwise, sct-bkn clouds
at above 20000 ft msl will prevail through Wednesday evening.

Mountains deserts... Sct clouds at above 20000 ft msl with
unrestricted vis will prevail through Wednesday evening.

Marine
Stronger west to northwest winds will develop in mainly the coastal
waters beyond 30 nm each afternoon and evening Friday through
Sunday with gusts around 25 knots possible.

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... 10
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LJPC1 - La Jolla, CA (073) 2 mi74 min SW 2.9 1 ft
LJAC1 - 9410230 - La Jolla, CA 2 mi52 min S 1.9 G 2.9 57°F 1017 hPa
46254 2 mi64 min 64°F2 ft
46225 - Torrey Pines Outer, CA (100) 8 mi73 min 62°F3 ft
SDBC1 - 9410170 - San Diego, CA 13 mi52 min 63°F1017.2 hPa
46258 17 mi34 min 62°F3 ft
46224 - Oceanside Offshore, CA (045) 23 mi34 min 61°F2 ft
TIXC1 - Tijuana River Reserve, CA 23 mi109 min WSW 1.9 57°F 1019 hPa54°F
46242 - Camp Pendleton Nearshore, CA (043) 24 mi66 min 62°F2 ft
46232 - Point Loma South, CA (191) 27 mi64 min 63°F4 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, Miramar MCAS/Mitscher Field Airport, CA5 mi39 minN 07.00 miA Few Clouds53°F46°F80%1016.6 hPa
San Diego, Montgomery Field, CA8 mi41 minN 08.00 miFair56°F52°F87%1017.1 hPa
San Diego, San Diego International-Lindbergh Field, CA12 mi43 minSSW 310.00 miMostly Cloudy58°F53°F84%1017.9 hPa
San Diego, North Island, Naval Air Station, CA14 mi42 minSSW 39.00 miMostly Cloudy57°F52°F83%1017.2 hPa
Gillespie Field Airport, CA16 mi1.7 hrsN 010.00 miFair59°F51°F77%1016.9 hPa
Carlsbad, McClellan-Palomar Airport, CA17 mi41 minS 38.00 miOvercast55°F53°F93%1016.7 hPa
Ramona, Ramona Airport, CA20 mi41 minN 010.00 miFair52°F44°F75%1016 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA23 mi38 minN 010.00 miMostly Cloudy58°F53°F84%1017.5 hPa
Oceanside, Oceanside Municipal Airport, CA23 mi42 minESE 48.00 miOvercast56°F52°F87%1017 hPa

Wind History from NKX (wind in knots)
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Last 24hrCalmCalmE3CalmCalmCalmCalmNE3SE3S3W43W10W9
G15
W75W8NW7NW5W4W4W3W5Calm
1 day agoCalmW3CalmSE4S3S4S3CalmCalmCalm3W5N4W8W7W8NW5W8W9NW6CalmSW4W3W4
2 days agoCalmE5CalmCalmNE6E6CalmE6E4S4SW44W8W8W6W9W6CalmSW6SW6SW5SW3CalmSE4

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Wed -- 12:45 AM PDT     1.48 feet Low Tide
Wed -- 03:45 AM PDT     Moonset
Wed -- 06:07 AM PDT     Sunrise
Wed -- 06:32 AM PDT     4.58 feet High Tide
Wed -- 01:07 PM PDT     -0.35 feet Low Tide
Wed -- 03:19 PM PDT     Moonrise
Wed -- 07:26 PM PDT     Sunset
Wed -- 07:39 PM PDT     4.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.51.82.53.344.54.543.120.90-0.3-0.10.61.7344.64.74.33.42.4

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Wed -- 01:30 AM PDT     0.00 knots Slack
Wed -- 03:44 AM PDT     Moonset
Wed -- 04:30 AM PDT     1.27 knots Max Flood
Wed -- 06:07 AM PDT     Sunrise
Wed -- 07:06 AM PDT     -0.00 knots Slack
Wed -- 10:27 AM PDT     -1.97 knots Max Ebb
Wed -- 01:54 PM PDT     0.00 knots Slack
Wed -- 03:19 PM PDT     Moonrise
Wed -- 05:08 PM PDT     1.84 knots Max Flood
Wed -- 07:25 PM PDT     Sunset
Wed -- 08:10 PM PDT     -0.00 knots Slack
Wed -- 11:05 PM PDT     -1.69 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-0.30.30.91.21.20.80.1-0.8-1.5-1.9-1.9-1.5-0.80.10.91.51.81.71.10.2-0.7-1.4-1.7

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (2,6,7,8)
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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.