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 6:48AM||Sunset 6:58PM||Monday March 19, 2018 8:38 PM PDT (03:38 UTC)||Moonrise 8:23AM||Moonset 9:21PM||Illumination 11%|
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|PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 158 Pm Pdt Mon Mar 19 2018 |
Tonight..Wind nw 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 ft at 12 seconds.
Tue..Wind variable less than 10 kt...becoming nw 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 ft at 13 seconds. Slight chance of rain in the afternoon.
Tue night..Wind nw to 10 kt with gusts to 15 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell sw 2 ft at 12 seconds. Slight chance of rain in the evening. Chance of rain after midnight.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell sw 2 to 3 ft at 10 seconds. Chance of rain in the morning. Slight chance of rain in the afternoon.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft at 9 seconds. Chance of rain.
Thu..Wind S 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell sw 3 to 5 ft. Rain.
Thu night..Wind W 10 kt...becoming nw after midnight. Gusts to 15 kt. Wind waves 2 ft or less. SWell sw 4 to 5 ft. Showers likely.
Fri..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. SWell W 3 to 4 ft. Chance of showers in the morning. Slight chance of showers in the afternoon.
Fri night..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 3 to 6 ft.
Sat..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 4 to 6 ft.
Sat night..Wind nw 15 to 20 kt with gusts to 25 kt. Wind waves 5 ft. SWell W 4 to 6 ft.
|PZZ700 158 Pm Pdt Mon Mar 19 2018 |
Synopsis for the far southern california coast.. At 1 pm, a 990 mb storm system was about 1500 nm west of san francisco, and a 1022 mb high was over northwestern nevada. Weak onshore flow will prevail through Wednesday as the storm system approaches, then winds will strengthen Thursday when the storm is overhead. Somewhat elevated winds and swells will occur Friday and Saturday.
7 Day Forecast for Marine Location Near Mountain Center, CAHourly EDIT Help
Area Discussion for - San Diego, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksgx 192203|
area forecast discussion
national weather service san diego ca
303 pm pdt Mon mar 19 2018
Dry weather will continue through tonight. Light showers possible
as early as Tuesday as a strong atmospheric river begins to take
shape along the coast. Shower activity should then slowly increase
into Wednesday, especially north of san diego county. The main
rain event is anticipated Wednesday night into Thursday, with
flash flooding and debris flows near recent burn scars possible.
Snow will not be a factor with this storm, with rain likely
impacting even the areas ski resorts through Thursday. Quieter
weather is expected over the weekend.
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
updated for the issuance of a flash flood watch.
At 130 pm... The weather was beautiful and the forecaster was
focused on the upcoming storm system that will affect the region
late Tuesday through Friday. Currently the region was dominated by
ridging, with just a few high clouds passing overhead. Though the
storm system that will affect the region later in the week was
evident churning about 1,200 miles west of san francisco on
Ridging will dominate for the next 24 hours, though increasing
high clouds will be a harbinger of things to come. Afternoon highs
will be near seasonal averages Tuesday.
The atmospheric river (ar) that will impact california Tuesday
through Friday was taking shape over the east central pacific. An
initial push of sub-topical moisture is expected Tuesday, with and
ahead of a warm frontal passage. This may result in some light
shower activity over the region (particularly north and west of san
diego county), along with more persistent cloud cover. Light
showers should remain possible through Tuesday night, with areas
of light upslope favoring the coastal slopes.
Some uncertainty creeps into the forecast for Wednesday, with
model differences of a couple hundred miles in the north-south
placement of the deepest moisture (ar). The area with the highest
probability of excessive rainfall looks to be focused on a region
near point conception (see wpc excessive rainfall outlook).
However slight changes could shift this region closer to l.A. Or
orange counties during this period. In any case rain remains in
the forecast for this period with rain chances and accumulations
decreasing rapidly from north to south. Snow is not expected, with
the sub-tropical nature of this system pushing snow levels well
above resort level (snow levels 9,000 ft or higher).
The main period over concern for flash flooding and or debris
flows near recent burn scars is expected for orange, san
bernardino, riverside, and san diego counties during the Wednesday
night-Thursday time period. This is when the low off the coast
opens up and is absorbed into the broader east west flow, shifting
the core of the strong ar south and east. It will also drag a
cold front through the region. Though timing differences of around
12 hours still exist in the guidance, forecaster confidence is
high that a 6-12 hour period of moderate-heavy rain will occur.
The depth of the saturated layer (up to 200 mb!) will result in a
heavy rain threat that could extend into the deserts (especially
the upper deserts). Highest totals should be found along the
coastal slopes, where 850 mb upslope flow may approach 35-45 knots
at times. Those with activities that are flood sensitive should|
be focused on this period! A detailed rain forecast can be found
in the hydrology section below. Gusty winds are expected along the
desert slopes, but they should occur in areas that generally see
minimal impact. Snow will remain a non factor with snow levels at
or above 9,000 ft through Thursday.
Light rainfall may linger into Friday with the northwesterly flow
behind the cold front. Snow levels will finally begin to dip
during this period, though rapid decreases in available moisture
will limit any snow accumulations to just a few inches.
The weekend should see below average temperatures as troughing
lingers along the west coast. A period of light showers can't be
ruled out for Sunday.
192030z... Sct-bkn clouds above 12000 ft msl will continue through
Tuesday morning with unrestricted vis. Clouds will increase Tuesday
afternoon, and in orange county and southwestern san bernardino
county bases lowering to 5000-8000 ft msl with -shra and some
mountain obscurations possible.
No hazardous marine weather is forecast through Thursday. A storm
system will likely bring rain Wednesday and beyond, while higher
winds and swell are likely Friday and Saturday, possibly reaching
small craft advisory.
A low pressure system and associated with a strong atmospheric
river will impact california Tuesday through Friday. The greatest
rainfall and impacts are anticipated in socal Wednesday night into
Thursday, though light showers are possible as early as Tuesday.
Uncertainty is higher for orange and san bernardino counties,
where a slight southward shift in storm track could result in an
earlier onset of moderate to heavy rainfall. The following
provides details on expected storm total rainfall and rainfall
rates. In general rain totals should decrease from north to south.
Forecast rain totals:
orange county: 1-3 inches
inland empire: 1-4 inches
coastal slopes: 3-6 inches with local amounts to 8 inches san
diego county (coast & valleys): 0.5-2 inches upper deserts: 0.75-2
inches coachella valley: 0.25-1.00 inches san diego county
desert: 0.25-0.75 inches
hourly rainfall rates:
Tuesday - Wednesday afternoon
0.25 inches or less locally higher along the coastal slopes.
Wednesday night - Thursday
rates near 0.50 inches per hour probable, with the potential for
rates as high as 0.75-1.00 per hour for brief periods.
Snow is not expected to be an issue, with snow levels remaining at
or above 9,000 ft for most of the storm.
Skywarn activation will not be needed today.
Sgx watches warnings advisories
Ca... Flash flood watch from Wednesday evening through late Thursday
night for orange county coastal areas-orange county inland
areas-san bernardino county mountains-san bernardino and
riverside county valleys-the inland empire-santa ana
mountains and foothills.
aviation marine... Maxwell
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)||53 mi||71 min||59°F||2 ft|
|46224 - Oceanside Offshore, CA (045)||56 mi||39 min||59°F||2 ft|
Wind History for La Jolla, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Palm Springs Regional Airport, CA||13 mi||46 min||E 6||10.00 mi||Fair||71°F||16°F||12%||1016.4 hPa|
Wind History from PSP (wind in knots)
|1 day ago||NW|
|2 days ago||SE||SW||Calm||Calm||NW||SE||Calm||Calm||Calm||S||NW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|San Clemente |
Click for Map
Mon -- 04:59 AM PDT 0.22 feet Low Tide
Mon -- 06:55 AM PDT Sunrise
Mon -- 08:27 AM PDT Moonrise
Mon -- 10:59 AM PDT 4.66 feet High Tide
Mon -- 05:06 PM PDT 0.32 feet Low Tide
Mon -- 07:01 PM PDT Sunset
Mon -- 09:24 PM PDT Moonset
Mon -- 11:16 PM PDT 5.02 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
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|Newport Beach |
Click for Map
Mon -- 05:00 AM PDT 0.37 feet Low Tide
Mon -- 06:56 AM PDT Sunrise
Mon -- 08:28 AM PDT Moonrise
Mon -- 11:05 AM PDT 4.58 feet High Tide
Mon -- 05:08 PM PDT 0.44 feet Low Tide
Mon -- 07:02 PM PDT Sunset
Mon -- 09:25 PM PDT Moonset
Mon -- 11:23 PM PDT 4.99 feet High 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.
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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.