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 6:55AM||Sunset 7:04PM||Sunday March 18, 2018 8:08 AM PDT (15:08 UTC)||Moonrise 7:55AM||Moonset 8:25PM||Illumination 3%|
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|PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 206 Am Pdt Sun Mar 18 2018 |
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds.
Tonight..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 10 seconds.
Mon..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 12 seconds.
Mon night..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 13 seconds.
Tue..Winds variable 10 kt or less, becoming N 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 12 seconds. Slight chance of rain in the afternoon.
Tue night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 11 seconds and sw 2 ft at 10 seconds. Chance of rain.
Wed..SW winds 15 to 20 kt with gusts to 25 kt. Combined seas 3 to 5 ft. Rain likely.
Thu..W winds 15 to 20 kt with gusts to 25 kt. Combined seas 5 to 7 ft. Rain likely.
|PZZ600 206 Am Pdt Sun Mar 18 2018 |
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z...or 2 am pdt...a 1022 mb high was 200 nm W of san francisco.
7 Day Forecast for Marine Location Near Seal Beach, CAHourly EDIT Help
Area Discussion for - Los Angeles/Oxnard, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 klox 181004|
area forecast discussion
national weather service los angeles oxnard ca
304 am pdt Sun mar 18 2018
17 311 pm
below normal temperatures will continue into Sunday, then the air
mass should warm to normal through Tuesday. Showers are possible
through tonight, mainly north of santa barbara. A drying trend is
expected Sunday through Monday. A significant storm system could
bring widespread moderate to heavy rainfall to the region between
Tuesday and Thursday night, with a potential debris flow threat.
Short term (tdy-tue)
8 302 am
skies will clear over most the forecast area this morning save for
a grip of north slope clouds that also cover the cuyama vly and
some low clouds near paso robles. Skies will turn partly cloudy
this afternoon and some high clouds move overhead. A weak 563 dm
ridge will move overhead as well. It will be dry today but max
temps will be 8 to 10 degrees blo normal across most of the coasts
and vly locations.
A weak trof ripples across the top of the state. It will usher in
a fair amount of mid and high clouds. Skies will be at a minimum
partly cloudy and will be mostly cloudy at times also.
Monday will be the warmest day of the next 7 as a 570 dm ridge
quickly slides from west to east over the state. A 1030 mb sfc
high will move into nv and set up weak offshore flow over the
state. The combination of increased hgts... Offshore flow and sunny
skies will produce a 5 to 10 degree warm up across most locations
and will bring MAX temps to about normal.
At dawn on Tuesday the western portion of the ridge will be over
the state. More importantly a 536 dm upper low will be 1000 miles
to the west of the bay area. This location is much further west
and south than usual. As a result a long westerly flow pattern
sets up from under the low to SRN ca. The flow will entrain a
large amount of subtropical moisture and will set the stage for
the season's first atmospheric river event. The moist wsw flow
will approach the state.
All the mdls handle the details of this storm differently. The gfs
is by far the fastest and it brings rain to the entire forecast
area save the antelope vly by 18z. The ec is slower but keeps the
moisture plume as far south as the gfs... It brings rain to the
central coast by 18z. The NAM is both slower than either spectral
mdl and also further north with its track of the plume... By 18z it
only brings rain to the NW tip of slo county. By 00z the GFS is
going great guns... It forecasts rain over the entire forecast area
along with heavy rain over most of slo and sba counties. The ec
only brings rain as far south as vta county and has no heavy rain
an barely any mdt rain. The NAM brings rain only to slo and sba
counties but does bring mdt hvy rain to the western portion of
Clouds will will overspread the area and MAX temps will fall (a
great deal if the GFS is correct but only 2 or 3 degrees if the
nam is correct)
Long term (wed-sat)
18 302 am
***biggest storm of the season with
major concern for recent burn areas***
both the ec and GFS agree that there will be a significant
hydrological event driven by an atmospheric river moving into srn
ca. The ec and GFS do not agree on the details. In 24 hours time
the the NAM will provide a forecast for the first 36 hours of the
storm and hopefully at that time the large amount of forecast
uncertainty will be reduced.
The GFS is much faster and also much harder hitting than the ec.|
The GFS wraps up the event Wednesday evening but produces
significantly more rainfall during the ec does from Tue night to
wed evening. The ec keep the river over SRN ca a full 24 hours
longer than the GFS but does not forecast as strong rainfall
rates. The NAM does not extend far enough into the event to
provide meaningful guidance but it does seem to be leaning towards
a slower solution.
Very early rainfall estimates for the tue-late Thu time from are:
1.50 to 4.00 inches for the coast and valleys, and 3-6 inches in
the foothills and mtns. Peak rainfall rates have the potential to
be 0.50-0.75 inch per hour, with local rates up to 1.00 inch per
hour, especially on S facing slopes. During the heaviest rains, it
will be possible to see 3-hour rainfall up to 1 to 2 inches in
This storm will bring the potential for major mud and debris flows on
the recent burn areas, including the thomas, whittier, la tuna
and creek burn areas. Widespread urban and small stream flooding,
and rockslides are likely at times during this event.
The upper low will move east and open up into a trof before
moving over the state sometime late Thursday (gfs) or Friday (ec)
the trof will usher in dry NW flow. The rain will stop and skies
will clear. MAX temps will warm3 to 6 degrees but will still be
at 0900z, there was no marine inversion at klax.
Overall, high confidence in 12z TAF package. Other than vlifr
conditions this morning at kprb,VFR conditions are anticipated
for all sites through the period.
Klax... High confidence in 12z taf.
Kbur... High confidence in 12z taf.
18 158 am
for the outer waters, good confidence in current forecast. Today
through Monday night, high confidence in winds and seas remaining
below small craft advisory (sca) levels. For Tuesday and
Wednesday, 60% chance of SCA level southeast to south winds
across pzz670 673 and a 30% chance across pzz676. On Thursday,
60% chance of SCA level west to northwest winds across the entire
For the inner waters, good confidence in current forecast. For the
waters north of point sal, there is a 60% chance of SCA level
southeast to south winds Tuesday and Wednesday then a 50% chance
of SCA level west winds on Thursday. For the waters south of point
conception, there is a 50% chance of SCA level southerly winds on
Wednesday and westerly winds on Thursday.
Lox watches warnings advisories
Hazard potential outlook (tue-sat)
Periods of moderate to heavy rain are possible Tuesday night
through Thursday night. Rainfall rates during this time will
likely exceed USGS thresholds for debris flows for recent burn
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|
|PRJC1||4 mi||50 min||NNE 6 G 7|
|46256||5 mi||46 min||56°F||3 ft|
|PFXC1||5 mi||50 min||NNE 2.9 G 5.1||48°F|
|PSXC1||6 mi||50 min||NE 4.1 G 6|
|PFDC1||6 mi||50 min||N 5.1 G 6|
|AGXC1||7 mi||50 min||NNW 7 G 8||49°F||1019.2 hPa|
|BAXC1||7 mi||50 min||E 1 G 1.9|
|PXAC1||8 mi||56 min||N 1.9 G 2.9|
|OHBC1 - 9410660 - Los Angeles, CA||8 mi||50 min||58°F||1019.5 hPa|
|46253||12 mi||68 min||56°F||3 ft|
|46222 - San Pedro, CA (092)||13 mi||68 min||58°F||4 ft|
|ICAC1 - 9410840 - Santa Monica Pier||27 mi||50 min||E 6 G 7||49°F||58°F||1019.5 hPa|
|46221 - Santa Monica Bay, CA (028)||28 mi||68 min||58°F||3 ft|
|46262||47 mi||68 min||58°F||4 ft|
|46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA||49 mi||48 min||NNW 7.8 G 9.7||58°F||1018.6 hPa|
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
|Los Alamitos Army Airfield, CA||5 mi||70 min||ENE 6||10.00 mi||Fair||43°F||39°F||88%||1019.3 hPa|
|Long Beach, Long Beach Airport, CA||6 mi||75 min||N 0||10.00 mi||Fair||47°F||42°F||83%||1019 hPa|
|Fullerton, Fullerton Municipal Airport, CA||12 mi||75 min||E 4||10.00 mi||Fair||46°F||42°F||86%||1018.9 hPa|
|Torrance, Zamperini Field Airport, CA||12 mi||78 min||N 0||10.00 mi||Clear||45°F||39°F||81%||1019 hPa|
|John Wayne-Orange County Airport, CA||14 mi||75 min||NNE 3||10.00 mi||A Few Clouds||48°F||42°F||80%||1019.1 hPa|
|Hawthorne, Hawthorne Municipal Airport, CA||18 mi||75 min||N 0||10.00 mi||Fair||48°F||39°F||74%||1019.1 hPa|
|Los Angeles, Los Angeles International Airport, CA||20 mi||75 min||NE 5||10.00 mi||A Few Clouds||47°F||41°F||80%||1018.8 hPa|
|Los Angeles / USC Campus Downtown, CA||21 mi||81 min||N 0||10.00 mi||Fair||46°F||39°F||79%||1019 hPa|
Wind History from SLI (wind in knots)
|1 day ago||SE||S||S||SW||SW||SW||SW||SW||SW||SW||SW||SW||SW||S||SW||SW||W||S||W||W||W||W||W||W|
|2 days ago||W||W||W||SW||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Los Patos (highway bridge) |
Click for Map
Sun -- 05:36 AM PDT 0.31 feet Low Tide
Sun -- 06:58 AM PDT Sunrise
Sun -- 07:54 AM PDT Moonrise
Sun -- 11:29 AM PDT 4.18 feet High Tide
Sun -- 05:56 PM PDT 0.05 feet Low Tide
Sun -- 07:02 PM PDT Sunset
Sun -- 08:25 PM PDT Moonset
Sun -- 11:56 PM PDT 4.14 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Long Beach |
Click for Map
Sun -- 04:23 AM PDT 0.51 feet Low Tide
Sun -- 06:59 AM PDT Sunrise
Sun -- 07:54 AM PDT Moonrise
Sun -- 10:28 AM PDT 5.20 feet High Tide
Sun -- 04:43 PM PDT 0.03 feet Low Tide
Sun -- 07:03 PM PDT Sunset
Sun -- 08:26 PM PDT Moonset
Sun -- 10:55 PM PDT 5.16 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (11,2,3,4)(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.