Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Rancho Palos Verdes, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:44AMSunset 7:55PM Thursday May 24, 2018 2:43 PM PDT (21:43 UTC) Moonrise 3:21PMMoonset 3:06AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 202 Pm Pdt Thu May 24 2018
Tonight..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 11 seconds and S 3 ft at 15 seconds.
Fri..Winds variable 10 kt or less, becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell nw 2 ft at 11 seconds and S 3 ft at 14 seconds.
Fri night..Western portion, W winds 15 to 20 kt becoming 20 to 25 kt after midnight. Elsewhere, W winds 15 to 20 kt becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 3 to 5 ft at 11 seconds.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 9 seconds and S 2 ft at 13 seconds.
Sat night..W winds 10 to 20 kt with gusts to 25 kt, becoming 10 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 3 to 5 ft at 7 seconds.
Sun..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft.
Sun night..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft.
Mon..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Tue..SW winds 5 to 10 kt. Wind waves 2 ft or less. S swell 2 ft.
PZZ600 202 Pm Pdt Thu May 24 2018
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 pdt...a 1019 mb surface high was located 600 nm S of point conception and a 1011 mb surface low was near las vegas. A long period southerly swell will continue to move through the waters into early Friday.

7 Day Forecast for Marine Location Near Rancho Palos Verdes, CA
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location: 33.7, -118.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 242056
afdlox
area forecast discussion
national weather service los angeles oxnard ca
156 pm pdt Thu may 24 2018

Synopsis 24 808 am.

A trough currently over the pacific will be moving into central
california this weekend. Mostly cloudy skies are expected through
early Saturday in most areas, but partly cloudy over the valleys.

A chance of showers in the northern parts of the CWA tonight and
Friday. Night to morning low clouds and drizzle elsewhere. Expect
cool temperatures through Saturday when the warming rend begins.

Short term (tdy-sun) 24 151 pm.

Deep marine layer to continue through at least Saturday as a low
pressure system moves through california. Likely very slow
clearing again Friday and for some areas Saturday before the
trough slides east and some ridging develops Sunday and into early
next week. With the deep marine layer we'll also see areas of
drizzle or even light rain in some places, especially up north
closer to the upper low and in the foothills of eastern la county.

Rain amounts will be light but could total a tenth to a quarter
inch in upslope areas. Highs will remain 4-8 degrees below normal
as well.

After the low passes we'll also see some gusty sundowner winds
developing across SRN sb county. Could be some gusty winds
developing as early as Friday across the far western portion but
then stronger and more widespread Saturday afternoon and evening
as better upper support arrives and gradients are stronger.

With the trough moving east of the area by late Saturday a warming
trend will begin Sunday with more traditional marine layer
clearing times. Highs expected to climb 5-10 degrees Sunday with
more sunshine and weaker onshore flow.

Long term (mon-thu) 24 155 pm.

The warming trend will continue through Tuesday with highs
climbing back to normal and even a few degrees above normal for
interior areas. By mid week the ridge shifts east and another
trough arrives on the west coast so temps will cool and the marine
layer will deepen.

Aviation 24 1759z.

At 1741z, the marine inversion at klax was around 3900 ft deep. The
top of the inversion was around 5800 feet with a temperature of 11
deg c.

Moderate confidence overall in the 18z tafs. Low clouds with MVFR
conditions will persist into this afternoon for most coast and vly
airfields before improving toVFR mid to late afternoon into the
early evening. Low clouds with mostly MVFR conditions can be
expected to redevelop at the coastal and vly airfields this evening
to later tonight then persist thru late Fri morning. There is
uncertainty in the timing of the improvement toVFR this afternoon
and development of MVFR CIGS tonight which could be off + - two or
more hours.

For kwjf and kpmd, there is hi confidence inVFR tafs thru fri
morning. Gusty SW winds will affect these airfields this afternoon
and evening as well, with some gusty winds expected to linger at
times overnight into Fri morning.

Klax... Moderate confidence overall in the 18z taf. Low clouds with
MVFR CIGS can be expected thru early this afternoon then improve to
vfr into early this evening. The CIGS should then lower to MVFR aft
about 02z then persist thru Fri morning before improving toVFR aft
about 18z fri. There is uncertainty in the timing of the improvement
toVFR this afternoon and development of MVFR CIGS tonight which
could be off + - two or more hours.

Kbur... Moderate confidence overall in the 18z taf. Low clouds with
MVFR conditions can be expected through about 00z with cigs
improving toVFR thru the evening. Low clouds with MVFR CIGS should
redevelop around 08z then persist thru Fri morning. There is a 30%-
40% chance the low clouds may not improve toVFR this afternoon and
early evening. There is also uncertainty in the timing of the
improvement toVFR late this afternoon and development of MVFR cigs
tonight which could be off + - two or more hours.

Marine 24 145 pm.

For the outer waters, generally high confidence in the current
forecast. Winds and seas will remain below small craft advisory
levels through at least Friday. There is a 60% chance of small
craft advisory level northwest winds across the southern portion
of the outer waters from point conception to san nicolas island
from Friday night through Sunday night. There is also a 60% chance
of advisory level gusts for the northern portion of the outer
waters from Saturday afternoon through Sunday night.

For the inner waters, generally high confidence in the current
forecast. For the waters north of point sal, winds and seas will
remain below SCA levels through Monday, except for a 40% chance
of SCA level winds Saturday afternoon and evening.

For the waters south of point conception, winds and seas will
remain below SCA levels through Friday. For Friday night through
Saturday night, there is a 60 percent chance of SCA level winds
at times, especially across western portions.

A long period southerly swell will continue to move through the
coastal waters through early Friday. Locally rough conditions may
occur at local harbor entrances, especially those with southerly
exposure.

Lox watches warnings advisories
Ca... Beach hazards statement in effect through Friday morning for
zones 40-41-87. (see laxcfwlox).

Pz... None.

Hazard potential outlook (sun-thu)
No significant hazards expected.

Public... Mw
aviation... Sirard
marine... Sirard
synopsis... Delerme
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 2 mi74 min 62°F1018.7 hPa
AGXC1 4 mi74 min SW 5.1 G 6 62°F 1018.8 hPa
PFDC1 4 mi80 min SSE 6 G 7
PXAC1 5 mi74 min S 5.1 G 7
PSXC1 6 mi74 min S 6 G 7
PFXC1 6 mi74 min SSW 5.1 G 6 64°F
BAXC1 6 mi74 min SSE 4.1 G 6
46222 - San Pedro, CA (092) 6 mi74 min 65°F3 ft
46256 6 mi74 min 64°F4 ft
PRJC1 7 mi74 min SSW 2.9 G 5.1
46253 11 mi74 min 66°F3 ft
46221 - Santa Monica Bay, CA (028) 20 mi74 min 62°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi74 min WSW 4.1 G 4.1 60°F 61°F1018.9 hPa
46262 37 mi74 min 63°F4 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 40 mi74 min W 5.8 G 7.8 1019.2 hPa

Wind History for Los Angeles Pier 400, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA7 mi1.9 hrsW 1010.00 miOvercast63°F53°F73%1019.3 hPa
Long Beach, Long Beach Airport, CA12 mi51 minSW 710.00 miOvercast68°F53°F59%1018.4 hPa
Los Alamitos Army Airfield, CA15 mi1.8 hrsS 510.00 miOvercast66°F53°F64%1018.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi51 minW 610.00 miOvercast64°F54°F70%1018.6 hPa
Los Angeles, Los Angeles International Airport, CA17 mi51 minWSW 9 G 1510.00 miOvercast65°F53°F66%1018.6 hPa
Fullerton, Fullerton Municipal Airport, CA21 mi51 minN 010.00 miOvercast69°F55°F61%1017.7 hPa
Avalon Catalina Airport, CA21 mi53 minWSW 1110.00 miOvercast55°F55°F100%1018.7 hPa
Los Angeles / USC Campus Downtown, CA22 mi57 minN 010.00 miOvercast67°F55°F68%1017.8 hPa
John Wayne-Orange County Airport, CA23 mi51 minSE 610.00 miOvercast66°F53°F63%1018.3 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi53 minSW 910.00 miOvercast64°F53°F68%1018.5 hPa

Wind History from TOA (wind in knots)
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Last 24hrW13W12W14W13W13W13--------------------W4CalmCalmCalmW9W8W10W9
1 day agoW12--W13W12W11W11--------------------W5W7W7W8W8W8W10W9
2 days agoW9W12W12SW12W9W5--------------------W5CalmCalm4W7W6W9W11

Tide / Current Tables for Los Angeles (outer harbor), California
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Los Angeles (outer harbor)
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Thu -- 12:43 AM PDT     1.30 feet Low Tide
Thu -- 03:05 AM PDT     Moonset
Thu -- 05:46 AM PDT     Sunrise
Thu -- 06:23 AM PDT     4.16 feet High Tide
Thu -- 12:33 PM PDT     0.40 feet Low Tide
Thu -- 03:20 PM PDT     Moonrise
Thu -- 07:10 PM PDT     5.36 feet High Tide
Thu -- 07:53 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.31.62.33.13.74.14.13.62.81.810.50.50.91.934.155.45.24.53.42.3

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Thu -- 12:46 AM PDT     1.24 feet Low Tide
Thu -- 03:05 AM PDT     Moonset
Thu -- 05:46 AM PDT     Sunrise
Thu -- 06:25 AM PDT     4.15 feet High Tide
Thu -- 12:35 PM PDT     0.37 feet Low Tide
Thu -- 03:20 PM PDT     Moonrise
Thu -- 07:12 PM PDT     5.40 feet High Tide
Thu -- 07:53 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.31.62.233.74.14.13.62.81.810.50.40.91.834.155.45.24.53.52.3

Weather Map and Satellite Images
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wmap_P
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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Wind Forecast for Los Angeles/Oxnard, CA (17,4,5,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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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.