Marine Weather and Tides
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 6:06AM||Sunset 7:22PM||Monday April 23, 2018 8:02 PM PDT (03:02 UTC)||Moonrise 1:11PM||Moonset 2:13AM||Illumination 63%|
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|PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 136 Pm Pdt Mon Apr 23 2018 |
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 13 seconds. Areas of fog with vsby 1 nm or less after midnight.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 ft at 12 seconds. Areas of fog with vsby 1 nm or less in the morning.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Wed..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 3 ft at 15 seconds.
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 3 ft at 14 seconds and S 3 ft at 16 seconds.
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 S 3 ft.
Thu night..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 ft.
Fri..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 4 ft and S 3 ft.
Fri night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. Mixed swell W 3 to 4 ft and S 3 ft.
Sat..Wind variable less than 10 kt...becoming W 10 to 15 kt with 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.
Sat 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 5 ft.
|PZZ700 136 Pm Pdt Mon Apr 23 2018 |
Synopsis for the far southern california coast..At 1 pm, a 1023 mb high was about 1050 miles west of san diego, and a 1010 mb low was near needles. Weak onshore flow will continue through Wednesday, strengthening on Thursday and Friday. Patchy fog will occur over the coastal waters each night through Wednesday, but visibility should remain above 1 nm.
7 Day Forecast for Marine Location Near Potrero, CAHourly EDIT Help
Area Discussion for - San Diego, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksgx 231957 cca|
area forecast discussion... Corrected
national weather service san diego ca
1257 pm pdt Mon apr 23 2018
Weak onshore flow will result in more widespread low clouds and fog
nights and mornings, otherwise fair and mild weather will continue
this week under weak high pressure aloft. Low pressure will move
toward the north coast of california late in the week, strengthening
the onshore flow, and deepening the marine layer. Areas of night
and morning coastal low clouds and fog will expand into the
valleys, along with cooling.
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
areas of fog and coastal stratus have burned off this morning
revealing mild and moistly sunny conditions except for a few
clouds lingering at some of the beaches. Expect a renewal of
coastal fog and low clouds this evening through Tuesday morning.
Areas of fog will again affect coastal areas and along the mesas
with visibilities as low as 1 sm.
Weak high pressure aloft and otherwise benign synoptic pattern
will continue a deep marine layer contributing to night and
morning low clouds and fog each day through the end of the week,
with warm and sunny afternoons each day. Patchy dense fog could
bring some impacts near the coast and along the mesas each
morning. There will also be areas of brisk winds through mountain
passes and into adjacent deserts each evening, but with gusts
mainly 35 mph or less.
A low pressure trough will develop off the coast of northern
california during the latter part of the week. Some model
solutions have it going northward this weekend, and others have it
digging southward, moving into southern california around Sunday.|
These solutions are bouncing around regarding the intensity of
this trough, but especially the timing of it. It could bring rain,
or nothing. We'll need much more confidence before adding chances
of rain to the forecast. For now, the most responsible forecast
is for cooler weather with an expanded marine layer and more
extensive coastal clouds. Daytime temperatures look to sink below
average by the weekend.
231950z... Coast... A few patches of low clouds fog remain at the
beaches this afternoon. More low clouds fog should develop this
evening, again spreading into the coastal areas after 02z Tuesday
with bases 400-700 ft msl and tops to 1100 ft msl. Expect areas of
fog reducing vis to 3-5 miles and locally 1 mile or less on higher
coastal terrain. Low clouds fog likely to spread 5-10 miles inland
by 12z tue. Impacts at coastal TAF sites are likely, with some
uncertainty about the precise timing. Low clouds fog should clear to
the coast between 16z and 18z Tuesday.
Valleys mountains deserts... Few-sct clouds at above 25000 ft msl
with unrestricted vis through Tuesday.
Patchy fog will occur over the coastal waters each night through
Wednesday, but visibility should remain above 1 nm. Otherwise no
hazardous marine weather is expected through Friday.
Skywarn activation isnot requested. However weather spotters are
encouraged to report significant weather conditions.
Sgx watches warnings advisories
Public... Brotherton mm
aviation marine... Pg
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|TIXC1 - Tijuana River Reserve, CA||66 mi||77 min||NW 2.9||61°F||1017 hPa||56°F|
|SDBC1 - 9410170 - San Diego, CA||76 mi||50 min||62°F||1015.3 hPa|
Wind History for USS MIDWAY South Navy Pier, San Diego, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|San Diego, Brown Field Municipal Airport, CA||64 mi||69 min||NW 6||8.00 mi||Fair||60°F||55°F||84%||1015.3 hPa|
Wind History from SDM (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||E||E||E||E||SE||NW|
|2 days ago||W||S||Calm||Calm||NE||NE||Calm||E||NE||NE||NE||NE||NE||Calm||W||W||W|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
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Mon -- 02:13 AM PDT Moonset
Mon -- 03:48 AM PDT 1.32 meters High Tide
Mon -- 06:08 AM PDT Sunrise
Mon -- 11:20 AM PDT -0.02 meters Low Tide
Mon -- 01:11 PM PDT Moonrise
Mon -- 06:21 PM PDT 1.20 meters High Tide
Mon -- 07:21 PM PDT Sunset
Mon -- 11:40 PM PDT 0.66 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Imperial Beach |
Click for Map
Mon -- 02:16 AM PDT Moonset
Mon -- 04:14 AM PDT 4.55 feet High Tide
Mon -- 06:09 AM PDT Sunrise
Mon -- 11:32 AM PDT -0.35 feet Low Tide
Mon -- 01:11 PM PDT Moonrise
Mon -- 06:30 PM PDT 4.05 feet High Tide
Mon -- 07:24 PM PDT Sunset
Mon -- 11:50 PM PDT 2.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
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 (23,6,7,8)(on/off)  Help
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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.