Friday, August18, 2017 L-36.com


Marine Weather and Tides
East Rancho Dominguez, CA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:16AMSunset 7:36PM Friday August 18, 2017 3:06 PM PDT (22:06 UTC) Moonrise 2:56AMMoonset 5:18PM Illumination 12% Phase: Waning Crescent; Moon at 26 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- 111 Pm Pdt Fri Aug 18 2017
Tonight..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 ft at 10 seconds and S 3 ft at 15 seconds. Patchy fog after midnight.
Sat..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 11 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Sat night..W winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 3 ft at 14 seconds.
Sun..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 3 ft at 14 seconds.
Sun night..SW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 13 seconds.
Mon..Winds variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 13 seconds.
Mon night..SW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 10 seconds. S swell 1 to 2 ft.
Tue..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Wed..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
PZZ600 111 Pm Pdt Fri Aug 18 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 pdt...a 1030 mb surface high was about 800 nm W of eureka and a 1009 mb low was near las vegas.

7 Day Forecast for Marine Location Near East Rancho Dominguez, CA
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location: 33.9, -118.21     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 182130
afdlox
area forecast discussion
national weather service los angeles oxnard ca
230 pm pdt Fri aug 18 2017

Synopsis
A weak trough of low pressure will keep the air mass on the cool
side of seasonal normals into early next week. A persistent marine
layer will continue to bring night through morning low clouds and
fog for the coastal areas, extending into the valleys over the
weekend and into next week. There is an outside chance of showers
and thunderstorms over the weekend across the higher terrain.

Short term (tdy-mon)
seeing the expected buildup of clouds over the ventura and eastern
la county mountains. Not expecting showers today but it is still
possible. The chance of showers will increase through the weekend
and in to Monday.

Today is another fairly seasonal day with moderate onshore flow
in place across the region. The upper level trough will remain into
next week, but weaken a bit Saturday as 500 mb heights climb
slightly. The 1000-foot marine layer depth this morning should
deepen through the weekend, possibly deepening to near 2000-2500
feet by Monday. Near persistence seems to be the best forecast for
the immediate coastal locales through the weekend and into early
next week. Away from the coast, temperatures will cool for early
next week, after a slight warm-up today and Saturday.

The focus of the forecast for the weekend will be on the instability
associated with the trough. East to southeast flow aloft could
draw in enough moisture to get rain out of the afternoon clouds. Pops
with isolated showers and thunderstorms extended through Monday
but still only at the slight chance level.

Long term (tue-fri)
by Tuesday the marine layer should deepen as the trough deepens
and slowly lifts out of the region through Wednesday. Night
through morning drizzle cannot be ruled out for the southland
early next week as the marine layer depth will likely deepen
substantially between Monday and Wednesday. Current forecast keeps
marine layer depths inline with 2000-2500 feet, but a depth up to
near 4000 feet between Tuesday and Wednesday would not be
shocking. A general cooling trend should be expected into midweek
next week as the trough wobbles around and creates ebbs and flows
of the marine intrusion.

Drier southwest flow aloft looks to develop for the latter half of
next week as the trough lifts out. Another weak trough of low
pressure reforms off the pacific northwest coast and a ridge of
high pressure remains centered over the southeast states. GFS is
still liking a warm up late in the week next week.

Aviation 18 1815z...

at 1730z, the marine inversion at klax was based at 1400 feet.

The top of the inversion was 5300 feet with a temperature of 21
degrees celsius.

Low confidence in coastal tafs with good confidence elsewhere.

Timing of return of low CIGS vsbys may be off by 3 hours or a
category lower than forecasted (or higher as well for ksmx).

There is a 20 percent chance of ifr to low MVFR CIGS vsbys for
kbur, kvny, and kprb between 12z and 16z. There is a 20 percent
chance thatVFR CIGS vsbys prevail through the period at ksba.

Klax... Low confidence in 18z TAF after 05z. Return of low clouds
is possible between 05z and 11z with a 30 percent of ifr
cigs vsbys, which would be most likely between 05z and 10z.

Kbur... Good confidence in 18z taf. There is a 20 percent chance
of ifr to low MVFR CIGS vsbys between 12z and 16z.

Marine 18 125 pm...

for the outer waters, high confidence in current forecast. Winds
and seas are expected to remain below small craft advisory (sca)
levels through at least Tuesday.

For the inner waters, high confidence in current forecast. Winds
and seas are expected to remain below SCA levels through at least
Wednesday.

Lox watches warnings advisories
Ca... Beach hazards statement in effect from Saturday afternoon
through Sunday evening for zones 40-41. (see laxcfwlox).

Pz... None.

Hazard potential outlook (mon-fri)
a high risk of rip currents exists at area beaches through the
weekend, and a beach hazard statement is in effect through Sunday
evening. Isolated showers and thunderstorms cannot be ruled out
for Sunday and Monday.

Public... Jld
aviation... Munroe
marine... Munroe
synopsis... Jll
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BAXC1 9 mi49 min SW 8 G 11
PSXC1 9 mi49 min SSW 8 G 11
PFXC1 11 mi49 min WSW 12 G 15 76°F
PRJC1 12 mi49 min WSW 19 G 19
OHBC1 - 9410660 - Los Angeles, CA 13 mi49 min 70°F1015.2 hPa
AGXC1 13 mi49 min WSW 16 G 18 70°F 1015.3 hPa
46256 14 mi45 min 70°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 17 mi55 min WSW 12 G 13 66°F 72°F1015.9 hPa
46222 - San Pedro, CA (092) 20 mi37 min 71°F3 ft
46253 22 mi37 min 71°F2 ft
46221 - Santa Monica Bay, CA (028) 23 mi37 min 69°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 46 mi37 min WSW 12 G 16 71°F1015.2 hPa

Wind History for Los Angeles Badger Avenue Bridge, CA
(wind in knots)    EDIT      (on/off)   Help
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SW8
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S8
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S10
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA6 mi74 minS 910.00 miFair78°F62°F58%1015 hPa
Hawthorne, Hawthorne Municipal Airport, CA7 mi74 minWSW 1310.00 miFair73°F62°F69%1015.4 hPa
Los Angeles / USC Campus Downtown, CA9 mi80 minW 610.00 miFair78°F61°F56%1014.8 hPa
Torrance, Zamperini Field Airport, CA9 mi2.2 hrsWNW 1410.00 miA Few Clouds73°F62°F69%1015.2 hPa
Los Angeles, Los Angeles International Airport, CA10 mi74 minWSW 1210.00 miA Few Clouds74°F63°F69%1015.3 hPa
Los Alamitos Army Airfield, CA11 mi69 minSSW 1110.00 miFair77°F62°F61%1015.5 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi74 minSSW 710.00 miFair81°F63°F54%1014.6 hPa
Santa Monica, Santa Monica Municipal Airport, CA16 mi76 minSW 1010.00 miFair73°F63°F71%1015.4 hPa
El Monte, CA16 mi77 minSW 610.00 miFair86°F59°F40%1015.2 hPa
Burbank - Bob Hope Airport, CA22 mi74 minS 810.00 miFair83°F59°F44%1013.5 hPa
John Wayne-Orange County Airport, CA24 mi74 minWSW 7 G 1610.00 miA Few Clouds76°F61°F60%1015.1 hPa

Wind History from LGB (wind in knots)
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Last 24hr4W8NW8NW10NW9NW8NW6NW4NW5NW5NW4CalmNE3NE3N3N43NE4CalmS5S8S8S9NW8
1 day agoSW7W9NW11NW10NW8NW7NW8NW6NW5CalmN3CalmCalmCalmCalmCalmCalm5E4S8S9S8S9S9
2 days agoS8S86S6S6SE7E5E5E4SE10SE7SE7E4SE6E6SE7SE7S6S56S8S9S6S9

Tide / Current Tables for Long Beach, Inner Harbor, California
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Long Beach
Click for Map
Fri -- 01:51 AM PDT     -0.36 feet Low Tide
Fri -- 02:56 AM PDT     Moonrise
Fri -- 06:17 AM PDT     Sunrise
Fri -- 08:18 AM PDT     4.06 feet High Tide
Fri -- 01:14 PM PDT     2.01 feet Low Tide
Fri -- 05:17 PM PDT     Moonset
Fri -- 07:28 PM PDT     6.27 feet High Tide
Fri -- 07:35 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.6-0.2-0.400.81.92.93.7443.52.92.322.12.73.64.75.66.26.25.54.42.9

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Fri -- 01:43 AM PDT     -0.38 feet Low Tide
Fri -- 02:56 AM PDT     Moonrise
Fri -- 06:17 AM PDT     Sunrise
Fri -- 08:12 AM PDT     4.22 feet High Tide
Fri -- 01:06 PM PDT     2.10 feet Low Tide
Fri -- 05:17 PM PDT     Moonset
Fri -- 07:21 PM PDT     6.61 feet High Tide
Fri -- 07:35 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.2-0.40.112.13.13.94.24.13.62.92.42.12.3345.16.16.66.55.74.42.8

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 (18,4,5,8)
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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.