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 7:05PM||Monday March 19, 2018 3:23 AM PDT (10:23 UTC)||Moonrise 8:30AM||Moonset 9:28PM||Illumination 7%|
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|PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 208 Am Pdt Mon Mar 19 2018 |
Today..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 11 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 13 seconds.
Tue..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 12 seconds. Slight chance of rain in the afternoon.
Tue night..N winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. 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..E winds 10 to 15 kt, becoming se 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 11 seconds and sw 2 ft at 10 seconds. Rain.
Wed night..SE winds 5 to 10 kt, becoming 10 to 15 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 12 seconds and sw 2 ft at 9 seconds. Rain.
Thu..SW winds 15 to 20 kt with gusts to 25 kt. Combined seas 3 to 4 ft. Rain.
Fri..W winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft.
|PZZ600 208 Am Pdt Mon Mar 19 2018 |
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z...or 1 am pdt...a 1021 mb high was over the sw california coastal waters and a 1000 mb low located 900 nm W of point conception. A frontal system associated with this low will approach the area with increasing se winds through Wed. The front will move over the waters Wed night through Thu. Rain, rough seas and moderate to strong winds are expected Tue through Thu.
7 Day Forecast for Marine Location Near Rancho Palos Verdes, CAHourly EDIT Help
Area Discussion for - Los Angeles/Oxnard, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 klox 191016|
area forecast discussion
national weather service los angeles oxnard ca
316 am pdt Mon mar 19 2018
Synopsis 18 609 pm.
A subtropical fetch of moisture ahead of an approaching trough of
low pressure will likely bring periods of moderate to heavy rain
to the area late Tuesday through Thursday. Cooler than normal
temperatures will prevail this week due to the unsettled weather
through Thursday, followed by a trough of low pressure lingering
over the area into this weekend.
Short term (tdy-wed) 19 310 am.
***largest storm of the season with major concern for recent burn
today will be the calm before the storm. A weak 568 dm ridge will
move slowly across the state. There will be weak offshore flow as
well but barley enough to create canyon breezes. It looks like it
might be a little sunnier over slo and sba counties than thought
earlier as the satellite shows the bulk of the mid and high clouds
shifting to the south. MAX temps today will come in right around
Tuesday will start off uneventfully. At dawn the state will be
under the western portion of the ridge. Skies will likely be
mostly cloudy as there will be plenty of mid and high level
moisture embedded in the SW flow running up the backside of the
ridge. But then there will be a startling change in the weather.
A 541 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 (ar) event. The ec and GFS agree on one important detail.
Both show that the ar will affect SRN ca from Tuesday through late
Thursday night when a upper trof moves through the state and
switches the flow to a drier NW direction.
The most important forecast for an ar event is the placement and
orientation of the axis of the ar. The placement will determine
which area is hit hardest and the orientation determines
orthogonal component to the higher terrain which will greatly
affect the rainfall amounts and rates. None of the mdls agree on
any of these details and non of the mdls agree with their previous
runs which is not good for the detailed forecast. So while we can
say with great confidence that most of the area (a few mdls keep
southern la county rather dry) will get a very good soaking. We
cannot say exactly when the peak of the rainfall will be or where
max total precip area will be. Right now it seems likely it will
be western sba county or southern sba western vta counties.
No changes to the general thinking for rainfall totals for the
Tuesday night through late Thursday night period: 4-6 inches in
the foothills and 2-4 inches for coastal areas. Peak rainfall
rates will be near 0.50 inch hour and could be higher if there is
strong upslope flow or with trof that moves in later Thursday.
Snow levels will remain above 9000 feet due to the mild
subtropical storm system and will not lower until late Thursday or|
Will let a couple more mdl runs go by to fine tune the timing and
intensities before issuing the flash flood watch. Expect the
watch to be issued this afternoon or early evening.
Long term (thu-sun) 19 315 am.
Drier NW flow will settle over the area of Friday and the showers
will diminish and the skies will clear and the drying out process
can begin. It will still be on the cool side with most cst vly max
temps in the mid 60s.
The ec and GFS do not agree that well for the rest of the extended
forecast. Both have NW flow but the GFS in more anti cyclonic
while the ec is more cyclonic. It looks like it will be dry. Went
with the GFS for this forecast and brought a slight warming trend
to near normal temps with mostly clear skies for the upcoming
Aviation 19 0923z.
At 0930z, there was no marine inversion at klax.
Overall, high confidence in 12z TAF package asVFR conditions are
expected to prevail through the TAF period.
Klax... High confidence in 12z taf.
Kbur... High confidence in 12z taf.
Marine 19 223 am.
For the outer waters, good confidence in current forecast. There
is a 70% chance of small craft advisory (sca) level southeasterly
winds Tuesday afternoon through Wednesday night. For Thursday and
Friday, there is a 60% chance of SCA level westerly winds.
For the inner waters, good confidence in current forecast. For the
waters north of point sal, there is a 60% chance of SCA level
southeasterly winds Tuesday afternoon through Wednesday night then
a 50% chance of SCA level westerly winds Thursday Friday. For the
waters south of point conception, there is a 30% chance of sca
level southeasterly winds Tuesday night and Wednesday then a 50%
chance of SCA level westerly winds Thursday and Friday.
Lox watches warnings advisories
Hazard potential outlook (wed-sun)
Periods of moderate to heavy rain are possible Wednesday through
Thursday night. Rainfall rates during this time will likely exceed
usgs thresholds for debris flows near recent burn areas. Rainfall
totals could bring local flooding to small streams and urban low-
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|
|OHBC1 - 9410660 - Los Angeles, CA||2 mi||53 min||58°F||1019.1 hPa|
|AGXC1||4 mi||53 min||WSW 1.9 G 1.9||55°F||1019 hPa|
|PFDC1||4 mi||53 min||SSW 1 G 1.9|
|PXAC1||5 mi||53 min||Calm G 1|
|PSXC1||6 mi||53 min||Calm G 1|
|PFXC1||6 mi||53 min||Calm G 1||55°F|
|BAXC1||6 mi||53 min||WNW 2.9 G 2.9|
|46222 - San Pedro, CA (092)||6 mi||53 min||59°F||2 ft|
|46256||6 mi||61 min||57°F||2 ft|
|PRJC1||7 mi||53 min||WNW 2.9 G 4.1|
|46253||11 mi||53 min||57°F||2 ft|
|46221 - Santa Monica Bay, CA (028)||20 mi||53 min||59°F||2 ft|
|ICAC1 - 9410840 - Santa Monica Pier||24 mi||53 min||NNE 1 G 1.9||53°F||59°F||1019.3 hPa|
|46262||37 mi||53 min||58°F||3 ft|
|46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA||40 mi||43 min||NW 5.8 G 7.8||58°F||1019.1 hPa|
Wind History for Los Angeles Pier 400, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Long Beach, Long Beach Airport, CA||12 mi||30 min||N 0||10.00 mi||Fair||54°F||44°F||69%||1018.8 hPa|
|Los Alamitos Army Airfield, CA||15 mi||85 min||WNW 5||10.00 mi||Fair||51°F||43°F||74%||1019.3 hPa|
|Hawthorne, Hawthorne Municipal Airport, CA||16 mi||30 min||N 0||10.00 mi||Fair||53°F||44°F||72%||1018.9 hPa|
|Los Angeles, Los Angeles International Airport, CA||17 mi||30 min||NNW 4||10.00 mi||Mostly Cloudy||54°F||46°F||75%||1018.8 hPa|
|Fullerton, Fullerton Municipal Airport, CA||21 mi||30 min||N 0||10.00 mi||Fair||52°F||43°F||72%||1018.4 hPa|
|Avalon Catalina Airport, CA||21 mi||32 min||N 0||10.00 mi||Fair||49°F||41°F||74%||1018.6 hPa|
|Los Angeles / USC Campus Downtown, CA||22 mi||36 min||N 0||10.00 mi||Fair||51°F||43°F||74%||1018.6 hPa|
|John Wayne-Orange County Airport, CA||23 mi||30 min||N 0||10.00 mi||Fair||54°F||43°F||67%||1018.6 hPa|
|Santa Monica, Santa Monica Municipal Airport, CA||24 mi||32 min||NW 3||10.00 mi||Fair||50°F||42°F||74%||1018.9 hPa|
Wind History from TOA (wind in knots)
|1 day ago||SW||W||W||W||W||SW|
|2 days ago||SW||Calm||Calm||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Los Angeles (outer harbor) |
Click for Map
Mon -- 05:04 AM PDT 0.38 feet Low Tide
Mon -- 06:58 AM PDT Sunrise
Mon -- 08:29 AM PDT Moonrise
Mon -- 11:08 AM PDT 4.67 feet High Tide
Mon -- 05:12 PM PDT 0.45 feet Low Tide
Mon -- 07:04 PM PDT Sunset
Mon -- 09:27 PM PDT Moonset
Mon -- 11:26 PM PDT 5.09 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Long Beach |
Click for Map
Mon -- 05:02 AM PDT 0.38 feet Low Tide
Mon -- 06:57 AM PDT Sunrise
Mon -- 08:29 AM PDT Moonrise
Mon -- 11:06 AM PDT 4.83 feet High Tide
Mon -- 05:10 PM PDT 0.42 feet Low Tide
Mon -- 07:03 PM PDT Sunset
Mon -- 09:27 PM PDT Moonset
Mon -- 11:25 PM PDT 5.25 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 Los Angeles/Oxnard, CA (6,6,7,8)(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.