Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Hacienda Heights, CA

Version 3.4
What's New / NOTES
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 5:44AMSunset 7:51PM Sunday May 20, 2018 10:48 AM PDT (17:48 UTC) Moonrise 11:05AMMoonset 12:21AM Illumination 33% Phase: Waxing Crescent; Moon at 6 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- 839 Am Pdt Sun May 20 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 4 ft at 8 seconds.
Tonight..W winds 15 to 20 kt, becoming 10 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 2 to 4 ft at 8 seconds.
Mon..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 10 seconds.
Mon night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 9 seconds.
Tue..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 9 seconds and S 2 ft at 18 seconds.
Tue night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 3 ft at 7 seconds and S 3 ft at 18 seconds.
Wed..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 3 ft.
Thu..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and sw 2 ft.
PZZ600 839 Am Pdt Sun May 20 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z...or 8 am pdt...a 1026 mb high pressure center was located 600 nm west of point conception and a 1004 mb low pressure center was located over southern nevada.

7 Day Forecast for Marine Location Near Hacienda Heights, CA
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Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 201601
afdlox
area forecast discussion
national weather service los angeles oxnard ca
901 am pdt Sun may 20 2018

Synopsis 19 727 pm.

A trough of low pressure is expected to push into the region by
early next week before shifting eastward. This will support
cooler conditions early next week with drizzle possible across
coasts and valleys south of point conception. There is also a
slight chance of showers or thunderstorms for adjacent interior
areas. Temperatures will likely rebound later in the week.

Short term (tdy-tue) 20 900 am.

The marine inversion early this morning ranged from about 2000 ft
deep at vbg to 3600 ft deep at lax. Low clouds covered the coast,
vlys and coastal slopes this morning. The low clouds should clear
back to the coast N of point conception by midday, with partial
clearing expected for the coast and vlys elsewhere thru the
afternoon. Breezy onshore flow can be expected this afternoon across
the region. Temps with the deep marine inversion and onshore flow
should be a few degrees below seasonal norms for the coast and vlys,
and near normal overall for the mtns and deserts. Highs in the vlys
and inland coastal areas this afternoon should be in the low to mid
70s.

An upper level trof of low pressure is forecast to develop along the
ca coast thru today, then deepen into an upper level low pressure
system over swrn ca late tonight and Mon with 500 mb heights around
565 to 566 dm. This system is expected to then slowly drift off to
the NE and away from the forecast area Mon night and Tue with upper
level troffiness lingering over SRN ca thru the period.

The marine layer will deepen a bit more tonight into Mon morning
with the low clouds extending from the coast to even further into
the coastal slopes. With the upper low nearby and cyclonic flow
aloft, there should be enough added lift for patchy drizzle as well
later tonight and Mon morning for the coast, vlys and coastal slopes
s of point conception.

500 mb temps around -16 deg c will accompany the upper level low on
mon. This plus the strong may sunshine will help to bring decent
instability (li's of -3 to -4) to the higher mtns and deserts by
early Mon afternoon. This will support a slight chance of
thunderstorms over these areas Mon afternoon and early evening.

Otherwise, another day of partial clearing to the coast can be
expected especially S of point conception.

Marine layer clouds will spread quickly inland Mon night and move up
to the coastal slopes again, but support for any drizzle will be
minimal. The low clouds will likely clear back to the coast N of
point conception by early Tue afternoon, with at least partial
clearing in the afternoon elsewhere. Afternoon CU buildups can also
be expected in the mtns Tue afternoon.

Continued marine layer influence and onshore flow will keep temps
down some Mon and tue, with highs a few degrees below normal for
most areas.

Long term (wed-sat) 20 312 am.

The ec no agrees with the GFS on the extended forecast so the
forecast is not as uncertain as it once was. Both mdls now agree
that an upper low will form in the east pac and then move into
state north of the bay area. This will put so cal in between the
upper low and a ridge over az nm with dry SW flow aloft.

Moderate onshore flow will continue through the period and hgts
will rise which will strengthen the capping inversion. There will
be night through morning low clouds and fog every day.

Max temps will rise slowly in response to the higher hgts. Better
warming, of course, away from the marine layer.

Aviation 20 1050z.

At 1040z, the marine inversion at klax was based around 3000 feet.

The top of the inversion was 4100 feet with a temperature of 16
degrees celsius.

Overall, moderate to high confidence in 12z TAF package. Moderate
confidence in coastal valley tafs. There is a 40% chance that MVFR
cigs may not dissipate late this afternoon. Overnight, high
confidence in return of MVFR cigs, but low confidence in timing.

For desert tafs, high confidence in current forecast.

Klax... Moderate confidence in 12z taf. There is a 30% chance that
MVFR CIGS could dissipate as early as 21z and a 40% chance that
MVFR CIGS do not dissipate at all this afternoon.

Kbur... Moderate confidence in 12z taf. There is a 30% chance that
MVFR CIGS could dissipate as early as 21z and a 40% chance that
MVFR CIGS do not dissipate at all this afternoon.

Marine 20 837 am.

For the outer waters... Small craft advisory (sca) level winds
and seas will continue through late Sunday night with a forty
percent chance of continuing through Monday night. For Tuesday
through Thursday, winds and seas will remain below SCA levels.

For the inner waters north of point sal... SCA level winds will
return this afternoon and evening with a forty percent chance of
sca level winds again on Monday afternoon and evening. For Tuesday
through Thursday, winds and seas will remain below SCA levels.

For the inner waters south of point conception... Winds and seas
will remain below SCA levels through Thursday although there is a
forty percent chance of SCA level winds across the western half
of the santa barbara channel this afternoon and evening and again
Monday afternoon and evening.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 am pdt Monday for
zones 645-670-673-676. (see laxmwwlox).

Hazard potential outlook (tue-sat)
No significant hazards expected.

Public... Sirard rorke
aviation... Rat
marine... Kj
synopsis... Munroe
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSXC1 20 mi49 min SSE 5.1 G 7
BAXC1 21 mi55 min S 4.1 G 4.1
PRJC1 21 mi49 min WSW 6 G 6
PFXC1 21 mi49 min SSW 6 G 6 65°F
PFDC1 22 mi55 min SSW 2.9 G 4.1
PXAC1 22 mi55 min SSW 4.1 G 5.1
46256 23 mi49 min 61°F3 ft
AGXC1 24 mi55 min SW 6 G 7 61°F 1014.4 hPa
OHBC1 - 9410660 - Los Angeles, CA 24 mi49 min 61°F1014.3 hPa (+0.6)
ICAC1 - 9410840 - Santa Monica Pier 27 mi49 min WSW 5.1 G 6 60°F 60°F1014.4 hPa (+0.6)
46222 - San Pedro, CA (092) 31 mi49 min 63°F4 ft
46253 31 mi49 min 63°F3 ft
46221 - Santa Monica Bay, CA (028) 35 mi49 min 60°F3 ft

Wind History for Los Angeles Pier S, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
El Monte, CA6 mi62 minN 010.00 miOvercast63°F53°F73%1014.9 hPa
Fullerton, Fullerton Municipal Airport, CA9 mi56 minN 010.00 miOvercast65°F55°F73%1013.6 hPa
Long Beach, Long Beach Airport, CA14 mi56 minVar 510.00 miOvercast64°F55°F73%1014 hPa
Brackett Field Airport, CA14 mi62 minN 06.00 miFog/Mist59°F55°F88%1015.2 hPa
Los Alamitos Army Airfield, CA15 mi1.8 hrsN 07.00 miOvercast62°F55°F79%1014.5 hPa
Los Angeles / USC Campus Downtown, CA15 mi62 minN 010.00 miOvercast64°F55°F73%1013.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA19 mi56 minSW 410.00 miOvercast63°F55°F76%1014.2 hPa
Chino, Chino Airport, CA19 mi56 minWNW 34.00 miFog/Mist65°F55°F73%1014 hPa
Los Angeles, Los Angeles International Airport, CA22 mi56 minWSW 610.00 miOvercast64°F55°F73%1014 hPa
Corona Airport, CA22 mi53 minN 010.00 miOvercast63°F55°F78%1015.2 hPa
Ontario International Airport, CA22 mi56 minN 08.00 miOvercast61°F54°F78%1013.5 hPa
Torrance, Zamperini Field Airport, CA22 mi60 minW 710.00 miOvercast61°F55°F83%1014.2 hPa
John Wayne-Orange County Airport, CA23 mi56 minSW 48.00 miOvercast62°F57°F84%1014 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi58 minSW 410.00 miOvercast62°F54°F75%1014.1 hPa
Burbank - Bob Hope Airport, CA24 mi56 minE 510.00 miOvercast62°F55°F80%1012.8 hPa

Wind History from EMT (wind in knots)
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Last 24hr------333S9SW8SW7SW7----------------------CalmCalmCalm
1 day ago3Calm33SW5W96CalmS12SW8
G14
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2 days agoSW6S6SW12
G17
S11
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SW8S11--SW10S10S9----------------------S4SW3Calm

Tide / Current Tables for Long Beach, Inner Harbor, California
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Long Beach
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Sun -- 12:21 AM PDT     Moonset
Sun -- 01:07 AM PDT     5.07 feet High Tide
Sun -- 05:48 AM PDT     Sunrise
Sun -- 08:44 AM PDT     -0.55 feet Low Tide
Sun -- 11:06 AM PDT     Moonrise
Sun -- 03:55 PM PDT     3.72 feet High Tide
Sun -- 07:50 PM PDT     Sunset
Sun -- 08:39 PM PDT     2.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.85.14.94.33.42.21.10.1-0.4-0.5-0.20.51.42.43.13.63.73.63.22.92.62.62.83.2

Tide / Current Tables for Long Beach, Outer Harbor, Pier A, California
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Long Beach
Click for Map
Sun -- 12:21 AM PDT     Moonset
Sun -- 01:06 AM PDT     5.07 feet High Tide
Sun -- 05:48 AM PDT     Sunrise
Sun -- 08:47 AM PDT     -0.55 feet Low Tide
Sun -- 11:06 AM PDT     Moonrise
Sun -- 03:54 PM PDT     3.72 feet High Tide
Sun -- 07:50 PM PDT     Sunset
Sun -- 08:42 PM PDT     2.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.85.14.94.33.42.31.10.2-0.4-0.5-0.20.51.42.33.13.63.73.63.22.92.62.62.83.2

Weather Map and Satellite Images
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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 (13,3,4,5)
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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.