Marine Weather and Tides
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.
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.
|Sunrise 6:37AM||Sunset 6:40PM||Monday September 25, 2017 8:48 PM PDT (03:48 UTC)||Moonrise 11:41AM||Moonset 10:25PM||Illumination 30%|
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|PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 131 Pm Pdt Mon Sep 25 2017 |
Tonight..Wind W 10 to 15 kt with gusts to 20 kt... Becoming S after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and S 1 to 2 ft at 12 seconds.
Tue..Wind S 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 1 to 2 ft at 11 seconds.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 1 to 2 ft at 11 seconds.
Wed..Wind variable less than 10 kt...becoming W 10 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 11 seconds.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 1 to 2 ft at 10 seconds.
Thu..Wind variable less than 10 kt...becoming nw 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft and S 1 to 2 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 to 2 ft.
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 1 ft.
Fri night..Wind N 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 ft.
Sat..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 ft.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 1 ft.
|PZZ700 131 Pm Pdt Mon Sep 25 2017 |
Synopsis for the far southern california coast..At 1 pm, a 1020 mb high was over northeastern nevada and a 1010 mb low was over the orange county coast. Offshore flow will prevail during nights and mornings with brisk northwest winds during the afternoons. The offshore flow weakens and becomes neutral during the latter half of the week. Patchy fog could develop over the south portions of the coastal waters during the nights and mornings.
7 Day Forecast for Marine Location Near San Jacinto, CAHourly EDIT Help
Area Discussion for - San Diego, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksgx 252023|
area forecast discussion
national weather service san diego ca
120 pm pdt Mon sep 25 2017
High pressure over the great basin will bring santa ana conditions
through Wednesday with sunny, warm days and clear nights. Winds
will be gusty at times in the mountains, foothills and the inland
empire. Warmer Thursday and Friday with lighter offshore winds.
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
no changes in the outlook for the ongoing santa ana weather pattern
with warm days, clear nights, and gusty winds in the mountains
passes, foothills and i.E. At times through Wednesday morning. Winds
at noon today were blustery at the usual offshore wind locations
including corona (18g24 mph), riverside (13g23 mph), and campo
(15g24 mph). It was cool in the mountains (big bear 54 degrees), and
warm in the coastal and valley zones (87 at corona, 86 at fullerton,
and 85 at escondido). Palm springs matched corona with 87 degrees.
The winds will diminish through evening, then a second burst of
similar intensity offshore winds will pick up again early Tuesday
Tonight the WRF is advertising a moderately strong coastal eddy
spinning up over the coastal waters, but the hrrr is much weaker
with the eddy circulation. Considering the model disparity, have
used a model blend and projected some low clouds patchy fog over the
coastal waters later tonight into Tuesday morning, but with
uncertainty as to how widespread it will be. Coverage will likely be
limited to the coastal waters tonight or the immediate coast
tonight. The eddy continues Tuesday night into Wednesday morning
when the coverage should be a little greater, and the marine
layer a couple hundred feet deeper.
*from previous discussion*
santa ana conditions produced locally gusty winds in the mountains,
foothills and passes this morning, strongest san bernardino and
riverside counties, and the santa ana mountains where 10-20 mph
winds were gusting to 30-35 mph. Winds were lighter in san diego
county. The santa ana airmass has reached all the way to the coast
this morning where dewpoints were in the 30s and low 40s. Farther
inland the dewpoints were lower, ranging from the teens to the low
Both the ECMWF and GFS model are consistent with the santa ana
weather pattern this week. A longwave trough over the west will be
reinforced by a shortwave dropping south over nv tomorrow. This
shortwave will develop into a cut-off low over the lower colorado
river valley Wednesday. The trough then lifts NE on Thursday and
Friday with higher heights resulting in even hotter days to end the
week. The coastal areas may not see a significant temperature change
thu or Fri though, as the marine layer returns in response to a
coastal eddy that will form on Wednesday. Increasing boundary layer|
rh will likely bring some marine layer clouds and patchy fog back
into coastal areas during that time.
Long range outlook for the weekend and beyond: the ECMWF and GFS are
at odds with each other. The GFS is forecasting a mean ridge pattern
through early next week, while the ECMWF is suggesting a trough for
stronger onshore flow and a hint of cooling. In either case,
precipitation is unlikely, and the main challenge will be if
temperatures will be average or above average.
251945z... Mostly clear skies through Tuesday. Local northeast winds
in foothills and below canyons into valleys with local mdt
up downdrafts and llws west of the mtns. Kont and ksbd are most
likely TAF sites to be impacted by these winds and llws. A similar
offshore wind pattern will continue Tuesday.
The southern coast of san diego county could see periods of sct-bkn
low clouds with bases 1000 ft msl or lower and vis 3sm or less
between 09z and 16z tue. Ksan could be impacted but confidence is
No hazardous marine weather is expected through Friday.
North-northeast winds in the mountains and foothills ranged from 10
to 20 mph through early afternoon with gusts between 20-30 mph. The
windiest site had gusts above 35 mph including fremont canyon (45
mph at 9 am), crestline ridge (41 mph at 2 am), and santiago peak
(40 mph at 1 am). Campo had a wind gust of 24 mph at 1 pm. The
winds will drop off through the evening, then increase again
Tuesday morning. Strongest winds will be in and below the cajon pass
and over the santa ana mts canyons, with lighter winds over
san diego county. On Wednesday the winds will a little weaker.
Afternoon humidities will bottom out between 10-15% tomorrow and for
increased wildfire risk, but limited areal coverage of these
conditions will be too small to require any fire weather products.
The will be a small increase in rh Wednesday through Friday, but
overall it will remain fairly dry with afternoon humidities below
25%. It will be dry and very warm days through next weekend,
creating an elevated wildfire risk region-wide. Winds may be gusty
both off and onshore at times, but should be localized and not over
any extended period.
Skywarn activation will not be needed today.
Sgx watches warnings advisories
Public fire weather... Moede
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|
|46242 - Camp Pendleton Nearshore, CA (043)||47 mi||81 min||69°F||2 ft|
|46224 - Oceanside Offshore, CA (045)||50 mi||49 min||69°F||2 ft|
Wind History for Los Angeles Pier J, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Riverside / March Air Force Base, CA||15 mi||51 min||WNW 8||10.00 mi||Fair||72°F||30°F||21%||1009 hPa|
|San Bernardino Intl. Airport, CA||24 mi||-1 min||SSW 6||7.00 mi||Mostly Cloudy||77°F||26°F||15%||1009.5 hPa|
Wind History from RIV (wind in knots)
|1 day ago||Calm||Calm||W||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||NE||NE||W||S||SW||NW||NW|
|2 days ago||NW||NW||Calm||NW||Calm||Calm||Calm||Calm||Calm||SE||Calm||S||SE||E||Calm||NE||NW||W||W||NW||W|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|San Clemente |
Click for Map
Mon -- 12:57 AM PDT 3.57 feet High Tide
Mon -- 06:11 AM PDT 2.13 feet Low Tide
Mon -- 06:40 AM PDT Sunrise
Mon -- 11:42 AM PDT Moonrise
Mon -- 12:33 PM PDT 4.72 feet High Tide
Mon -- 06:42 PM PDT Sunset
Mon -- 07:53 PM PDT 1.24 feet Low Tide
Mon -- 10:28 PM PDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Newport Beach |
Click for Map
Mon -- 01:12 AM PDT 3.61 feet High Tide
Mon -- 06:12 AM PDT 2.37 feet Low Tide
Mon -- 06:41 AM PDT Sunrise
Mon -- 11:44 AM PDT Moonrise
Mon -- 12:39 PM PDT 4.71 feet High Tide
Mon -- 06:43 PM PDT Sunset
Mon -- 08:02 PM PDT 1.33 feet Low Tide
Mon -- 10:29 PM PDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southwest EDIT
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.