Monday, March27, 2017 L-36.com


Marine Weather and Tides
Rolling Hills Estates, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:44AMSunset 7:12PM Monday March 27, 2017 7:15 PM PDT (02:15 UTC) Moonrise 6:42AMMoonset 7:01PM Illumination 0% Phase: New Moon; Moon at 1 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 214 Pm Pdt Mon Mar 27 2017
.gale warning in effect until 10 pm pdt this evening...
Tonight..NW winds 20 to 30 kt with gusts to 35 kt...becoming 15 to 25 kt with local gusts to 30 kt after midnight. Strongest western portion. Combined seas 6 to 8 ft dominant period 9 seconds.
Tue..N winds 15 to 20 kt with local gusts to 25 kt...becoming nw 10 to 15 kt in the afternoon. Wind waves 2 to 4 ft. W swell 3 to 5 ft at 10 seconds.
Tue night..From point mugu to santa Monica and S of palos verdes... NW winds 15 to 20 kt becoming N after midnight. Elsewhere...w winds 15 to 20 kt becoming variable 10 kt or less after midnight. Wind waves 2 to 3 ft. W swell 3 to 5 ft at 11 seconds.
Wed..From point mugu to santa Monica...ne winds 20 to 25 kt becoming variable 10 kt or less in the afternoon. Elsewhere...winds variable 10 kt or less becoming W 10 kt in the afternoon. Wind waves 1 to 3 ft. W swell 4 to 5 ft at 15 seconds.
Wed night..W winds 10 to 15 kt...becoming nw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 15 seconds.
Thu..Western portion...winds variable 10 kt or less becoming W 25 to 35 kt in the afternoon. Elsewhere...winds variable 10 kt or less becoming W 15 to 20 kt in the afternoon. Combined seas 3 to 4 ft...building to 4 to 6 ft in the afternoon.
Thu night..Western portion...nw winds 30 to 35 kt becoming 15 to 20 kt after midnight. Elsewhere...nw winds 15 to 20 kt becoming 10 to 15 kt after midnight. Combined seas 4 to 6 ft.
Fri..NW winds 15 to 25 kt with gusts to 35 kt. Combined seas 5 to 6 ft.
Sat..NW winds 10 to 20 kt. Wind waves 1 to 3 ft. W swell 3 to 5 ft.
PZZ600 214 Pm Pdt Mon Mar 27 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z...or 1 pm pst...a 1029 mb high pressure center was located 600 nm nw of point conception and a 1008 mb low pressure center was located in nw arizona. Winds will be elevated during much of this coming week. Widespread gales are likely this afternoon and evening and possibly again Thursday and Friday. Short period seas will dominate the waters due to persistent northwest winds.

7 Day Forecast for Marine Location Near Rolling Hills Estates, CA
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location: 33.72, -118.27     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 280017
afdlox
area forecast discussion... Updated
national weather service los angeles/oxnard ca
517 pm pdt Mon mar 27 2017

Synopsis
Strong winds will continue tonight then begin to diminish by mid
Tuesday morning. Temperatures will increase through Wednesday. An
approaching low pressure center will cool temperatures by
Thursday.

Short term (tdy-thu)
strong northwest flow has developed behind a trough that passed
through the area earlier this morning. Good subsisidence is also
helping to drive higher winds speeds from aloft down to lower
elevations. Advisory and warning level north to northwest winds
are expected across many areas through tonight before the shift to
santa ana northeast winds takes place Tuesday morning. The
northeast winds won't be as strong in most areas as the northwest
winds were, but cross sections of model data through the typical
favored santa ana wind areas shows winds near 40kt down to around
850 mb. So while this won't likely be a warning level santa ana
event it should at least keep winds in the advisory category
through the morning hours and possibly into early afternoon. So
the 9am expiration of some of the la/ventura county advisories
have been extended until 2 pm to account for the santa ana winds.

With the trough exiting east and good downslope flow taking place
with the santa ana winds most areas, especially west and south of
the mountains will see a sizable jump in temps Tuesday and again
Wednesday. Gradients are actually peaking Wednesday but upper
support wanes as the ridge axis moves overhead. So still some
gusty winds but mostly below advisory levels. Highs will warm up
well into the 80s in the valleys and some lower 90s for the
warmest areas by Wednesday. 70s to lower 80s for coastal zones.

Another trough that will eventually become our next inside slider
will hit NRN california early thu. This will quickly reverse
gradients and cool temps several degrees Thu afternoon. Northern
areas may see a few clouds from it Thu afternoon but no precip.

May have to watch for some more grapevine area showers Thu night
but at present models aren't showing much moisture lingering
behind it so will keep forecast dry. But it will initiate another
round of gusty north to northwest winds Thu into Thu night in
many of the same areas as this morning and likely with similar
speeds if it follows the currently expected trajectory.

Long term (fri-mon)
a similar pattern shaping up for the end of the week as we're
seeing in the first half of the week. Strong northwest flow thu
into early Fri behind the trough with cooling temps, then
shifting to northeast Friday into Saturday for a quick warmup back
into the 80s for the valleys and 70s for coastal zones. Then
cooling again Sunday with the next trough which again appears to
be taking an inside track. Though here the GFS and ECMWF part ways
quite a bit with the ec showing a much faster and weaker trough
passage with virtually no gusty northwest flow behind it. So
somewhat lower confidence as we get later into the weekend but
given the pattern it seems prudent to hold onto the inside sliders
for the time being.

Aviation 28/0017z.

At 00z, there was no marine layer at klax.

Vfr conditions are expected throughout the period, except for a
chance of lifr conditions at kprb. Moderate to strong low-level
wind shear and turbulence is possible at all terminals through
18z.

Klax...VFR conditions are expected throughout the period. Moderate
low-level wind shear and turbulence is possible between 04z and
18z. Northerly cross winds greater than 10 knots should develop
between 02z and 04z and linger through at least 10z, or as late as
13z. There is a 10 percent chance of northerly cross winds being
greater than 20 knots between 08z and 12z.

Kbur...VFR conditions are expected throughout the period. Moderate
to strong low-level wind shear and turbulence is possible between
03z and 18z, with the highest chances between 08z and 14z.

Marine 27/200 pm.

Lots of changes on the marine package. The gales are still
expected this afternoon, but they are off to a slow start.

Changed the ending time of the gales for the outer waters to 11z
and inner waters to 05z as it does not look like the gale winds
will stick around any longer than that.

Changed the wave heights in the grids to better match with
surrounding offices and the latest coastal/marine guidance. Still
expecting some rather steep and choppy waves this afternoon into
this evening during the strongest period of winds.

Lox watches/warnings/advisories
Ca... High surf advisory in effect until 2 pm pdt Wednesday for
zones 34-35. (see laxcfwlox).

Wind advisory in effect until 9 pm pdt this evening for zones
34-35. (see laxnpwlox).

Wind advisory in effect until 3 am pdt Tuesday for zone 39. (see laxnpwlox).

Beach hazards statement in effect through Wednesday afternoon
for zones 40-41-87. (see laxcfwlox).

Wind advisory in effect until 9 am pdt Tuesday for zones
41-87. (see laxnpwlox).

Wind advisory in effect until 2 pm pdt Tuesday for zones
44>46-88-547. (see laxnpwlox).

High wind warning in effect until 3 am pdt Tuesday for zones
52-59. (see laxnpwlox).

High wind warning in effect until 9 am pdt Tuesday for zones
53-54. (see laxnpwlox).

Wind advisory in effect from 9 am to 2 pm pdt Tuesday for
zones 53-54. (see laxnpwlox).

Pz... Gale warning in effect until 10 pm pdt this evening for zones
645-650-655. (see laxmwwlox).

Gale warning in effect until 4 am pdt Tuesday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
another round of strong and gusty northwest to north winds will
be possible Thu night in the mountains and along the santa barbara
county south coast, with travel being affected by the winds.

Public... Mw
aviation... Hall
marine... Sweet
synopsis... Tf
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 0 mi46 min 60°F1013.1 hPa
AGXC1 1 mi46 min W 19 G 23 62°F 1013.3 hPa
PFDC1 2 mi46 min WSW 15 G 17
PFXC1 3 mi46 min WNW 18 G 22 66°F 1012.1 hPa
PXAC1 3 mi46 min W 9.9 G 14
PSXC1 4 mi46 min W 17 G 23
BAXC1 4 mi46 min WNW 20 G 23
46256 4 mi54 min 59°F4 ft
PRJC1 5 mi46 min WNW 14 G 20
46222 - San Pedro, CA (092) 7 mi87 min 60°F6 ft
46253 11 mi46 min 61°F6 ft
46221 - Santa Monica Bay, CA (028) 21 mi46 min 60°F7 ft
ICAC1 - 9410840 - Santa Monica Pier 23 mi46 min N 13 G 19 69°F 63°F1014.1 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 42 mi36 min WNW 21 G 25 61°F 60°F1014 hPa52°F

Wind History for Angels Gate, CA
(wind in knots)    EDIT      (on/off)   Help
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Last
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W15
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G23
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G28
1 day
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W12
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N3
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W11
G14
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NE5
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SW11
G14
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N6
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G15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA6 mi28 minW 14 G 2310.00 miA Few Clouds59°F51°F77%1013.5 hPa
Long Beach, Long Beach Airport, CA10 mi23 minWNW 12 G 2010.00 miFair68°F35°F30%1013 hPa
Los Alamitos U. S. Army Airfield, CA13 mi78 minW 17 G 2410.00 miFair66°F48°F52%1013.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA15 mi23 minWNW 610.00 miFair67°F37°F35%1013.5 hPa
Los Angeles, Los Angeles International Airport, CA17 mi23 minW 14 G 2210.00 miA Few Clouds66°F39°F37%1013.6 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi23 minWNW 12 G 2010.00 miFair70°F28°F22%1012 hPa
Los Angeles / USC Campus Downtown, CA21 mi29 minNW 710.00 miFair69°F30°F24%1012.9 hPa
Santa Ana, John Wayne Airport-Orange County Airport, CA21 mi23 minVar 510.00 miA Few Clouds64°F50°F60%1013.1 hPa
Santa Monica, Santa Monica Municipal Airport, CA23 mi25 minN 14 G 2010.00 miFair67°F26°F21%1013.8 hPa
Avalon Catalina Airport, CA23 mi25 minWNW 14 G 2410.00 miFair58°F44°F60%1014.8 hPa

Wind History from TOA (wind in knots)
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Last 24hrW7--------------------SW4CalmCalm4SW3W7NW13W13--W20
G28
W18
G25
W14
G22
W14
G23
1 day agoW6--------------------CalmCalmCalmCalm--S5E4NE6SW10W12W9W12W10
2 days agoW14
G20
--------------------CalmNW5W7W8W9NW10W8W8SW9
G20
SW12W15
G19
--W9

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Mon -- 03:25 AM PDT     0.30 feet Low Tide
Mon -- 06:41 AM PDT     Moonrise
Mon -- 06:46 AM PDT     Sunrise
Mon -- 09:31 AM PDT     5.44 feet High Tide
Mon -- 03:47 PM PDT     -0.28 feet Low Tide
Mon -- 07:00 PM PDT     Moonset
Mon -- 07:10 PM PDT     Sunset
Mon -- 07:59 PM PDT     New Moon
Mon -- 09:59 PM PDT     5.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.220.90.40.41.12.23.54.75.35.44.73.52.10.8-0.1-0.30.21.32.7455.35

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Mon -- 04:35 AM PDT     0.19 feet Low Tide
Mon -- 06:40 AM PDT     Moonrise
Mon -- 06:45 AM PDT     Sunrise
Mon -- 10:29 AM PDT     4.51 feet High Tide
Mon -- 04:58 PM PDT     -0.21 feet Low Tide
Mon -- 06:59 PM PDT     Moonset
Mon -- 07:09 PM PDT     Sunset
Mon -- 07:59 PM PDT     New Moon
Mon -- 10:58 PM PDT     4.42 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.62.71.70.80.30.20.81.72.93.94.44.43.931.90.80.1-0.20.112.13.34.14.4

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Los Angeles/Oxnard, CA (22,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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Disclaimer:
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.