Wednesday, July15, 2020
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Marine Weather and Tides
Rolling Hills Estates, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:52AMSunset 8:05PM Wednesday July 15, 2020 2:25 AM PDT (09:25 UTC) Moonrise 1:52AMMoonset 3:42PM Illumination 25% Phase: Waning Crescent; Moon at 25 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 Am Pdt Wed Jul 15 2020
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 ft at 6 seconds. Patchy fog in the morning.
Tonight..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 ft at 6 seconds. Patchy fog.
Thu..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 5 seconds. Patchy fog in the morning.
Thu night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 5 seconds. Patchy fog after midnight.
Fri..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 7 seconds. Patchy fog in the morning.
Fri night..W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 ft at 10 seconds. Patchy fog after midnight.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft. Patchy fog.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft.
PZZ600 202 Am Pdt Wed Jul 15 2020
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 1031 mb high pressure system was centered 900 nm west of eureka, while a 1005 mb thermal low was over southern nevada. The high will shift farther offshore through the week.


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 150708 AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 1208 AM PDT Wed Jul 15 2020

SYNOPSIS. 14/849 PM.

Daytime high temperatures over the next few days will be around normal, with a warming trend by the end of the week. Night through morning low clouds will push onshore and into the coastal valleys each night, with clouds clearing out to the coast each day. Winds will be gusty at times in the Antelope Valley into the weekend.

SHORT TERM (TUE-FRI). 14/839 PM.

***UPDATE***

Forecast is in good shape this evening. Low clouds and fog starting to surge into some coastal areas, and looks poised to expand over most coastal and valley areas by later Wednesday morning. Coverage should be very similar to Tuesday.

***From Previous Discussion***

Very little change in the weather pattern next few days. Our marine layer is around 2000' and probably will stay within a few hundred feet of that through at least Thursday, pushing into the coastal valleys each night and then clearing to near the coast each day by around noon. Still some gusty winds expected in and around the Antelope Valley each of the next few days but below advisory levels. Humidities have ticked up a little but still hovering in that 10% area which combined with the gusty winds and dry grasses still poses some concerns for potential fire spread should something get started.

By Friday an upper ridge will start to nudge west from Arizona and being a very modest warming trend into the weekend. The marine layer depth will lower slightly but should still push into the valleys.

LONG TERM (SAT-TUE). 14/124 PM.

A little warming trend over the weekend but just a couple degrees each day, and mostly for inland areas. Then leveling off with minimal day to day changes into early next week. Marine layer will be a little less extensive but still lingering near the coast through the afternoon. Overall a low impact period of weather for the next week or so. Longer range models hinting at a possible return of monsoon moisture to southeast California around the middle of next week but LA County is still mostly on the outside looking in.

AVIATION. 15/0653Z.

At 23Z at KLAX, the marine layer was 1700 feet deep. The top of the inversion was 2600 feet and 24 degrees Celsius.

Moderate confidence in non desert TAFs with flight cat changes +/- 1 hour. Sites with with MVFR cigs have a 30 percent chc of IFR cigs 09Z-15Z.

Good confidence in desert TAFs.

KLAX . Moderate confidence in TAF. There is a 30 percent chc of OVC008 10Z-15Z. VFR transition may be as late as 18Z. High confidence that east wind component will be under 5KT.

KBUR . Moderate confidence in TAF. There is a 30 percent chc of OVC008 10Z-15Z. VFR transition may be as late as 17Z.

MARINE. 14/848 PM.

Moderate confidence that Small Craft Advisory (SCA) winds will continue through most of tonight over the outer waters south of Point Conception, then weaken and stay below SCA everywhere through at least the end of the week. Gusts up to 20 KT however should be expected each afternoon near the San Pedro Channel and Anacapa Passage.

LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect until 3 AM PDT Wednesday for zones 673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (FRI-TUE).

No significant hazards expected.



PUBLIC . MW/Kittell AVIATION . Rorke MARINE . Sweet/Kittell SYNOPSIS . MW/Phillips

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 0 mi55 min 63°F
46256 4 mi29 min 65°F2 ft
46222 - San Pedro, CA (092) 7 mi35 min 69°F3 ft
46253 11 mi59 min 69°F2 ft
46221 - Santa Monica Bay, CA (028) 21 mi62 min 66°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 23 mi55 min 64°F
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 41 mi35 min N 9.7 G 12 64°F 71°F4 ft1014 hPa59°F

Wind History for Angels Gate, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA10 mi32 minN 010.00 miOvercast67°F59°F76%1014 hPa
Los Alamitos Army Airfield, CA13 mi4.5 hrsVar 19.00 miFair70°F57°F64%1014.6 hPa
Hawthorne, Hawthorne Municipal Airport, CA15 mi32 minVar 310.00 miOvercast65°F57°F78%1014.2 hPa
Los Angeles, Los Angeles International Airport, CA17 mi32 minN 010.00 miOvercast65°F57°F78%1013.9 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi32 minSSW 410.00 miOvercast69°F59°F70%1013.6 hPa
John Wayne-Orange County Airport, CA21 mi32 minSW 610.00 miOvercast68°F57°F70%1013.8 hPa
Los Angeles / USC Campus Downtown, CA21 mi33 minN 08.00 miOvercast66°F59°F78%1013.8 hPa
Avalon Catalina Airport, CA23 mi34 minN 09.00 miOvercast58°F55°F90%1013.4 hPa
Santa Monica, Santa Monica Municipal Airport, CA23 mi34 minS 610.00 miOvercast64°F59°F84%1014.2 hPa

Link to 5 minute data for KTOA

Wind History from TOA (wind in knots)
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Last 24hr------------------------------SE5SE5SE4S4E5W13W15W15W16
1 day ago------------------------------SE8E5SE8E10E6E5--W12W13
2 days ago------------------------------CalmCalmCalmW5W9W14W10W14W12

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Wed -- 01:13 AM PDT     1.13 feet Low Tide
Wed -- 01:51 AM PDT     Moonrise
Wed -- 05:54 AM PDT     Sunrise
Wed -- 07:20 AM PDT     3.18 feet High Tide
Wed -- 11:47 AM PDT     2.32 feet Low Tide
Wed -- 03:41 PM PDT     Moonset
Wed -- 06:29 PM PDT     5.32 feet High Tide
Wed -- 08:03 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.11.21.62.12.633.23.12.92.62.42.32.533.64.34.95.35.34.94.13.22.2

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Wed -- 01:50 AM PDT     Moonrise
Wed -- 02:25 AM PDT     0.68 feet Low Tide
Wed -- 05:53 AM PDT     Sunrise
Wed -- 08:20 AM PDT     2.64 feet High Tide
Wed -- 12:59 PM PDT     1.39 feet Low Tide
Wed -- 03:40 PM PDT     Moonset
Wed -- 07:29 PM PDT     4.41 feet High Tide
Wed -- 08:03 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.510.70.711.522.42.62.62.31.91.51.41.522.63.344.44.443.42.6

Weather Map
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wmap_P
GEOS 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 (5,6,7,8)
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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 numerous 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.