Friday, March24, 2017 L-36.com


Marine Weather and Tides
El Segundo, 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 6:48AMSunset 7:10PM Friday March 24, 2017 7:05 AM PDT (14:05 UTC) Moonrise 4:44AMMoonset 3:51PM Illumination 10% Phase: Waning Crescent; Moon at 27 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- 231 Am Pdt Fri Mar 24 2017
Today..Winds variable 10 kt or less...becoming sw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 13 seconds. Patchy fog in the morning.
Tonight..NW winds 10 to 20 kt with local gusts to 25 kt...becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 2 to 3 ft at 12 seconds. Slight chance of rain after midnight.
Sat..W winds 10 to 15 kt...becoming 15 to 20 kt in the afternoon. Wind waves 2 to 3 ft. W swell 3 to 4 ft at 11 seconds. Chance of showers in the morning.
Sat night..Western portion...nw winds 20 to 25 kt becoming 5 to 10 kt after midnight. Elsewhere...sw winds 10 to 15 kt becoming variable 10 kt or less after midnight. Wind waves 1 to 3 ft. W swell 4 to 5 ft at 8 seconds.
Sun..Winds variable 10 kt or less...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. W swell 4 to 5 ft at 12 seconds.
Sun night..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. W swell 3 to 4 ft at 12 seconds.
Mon..NW winds 15 to 25 kt with gusts to 35 kt. Combined seas 7 to 10 ft.
Tue..NW winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft.
PZZ600 231 Am Pdt Fri Mar 24 2017
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 pst...a 989 mb low was 400 nm W of seattle...with a cold front trailing sw of the the low. A 1026 mb high was located about 100 nm W of point conception. The weakening cold front will cross the sw california waters Fri night through Sat.

7 Day Forecast for Marine Location Near El Segundo, CA
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location: 33.91, -118.43     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 241206
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
506 am pdt Fri mar 24 2017
new aviation discussion

Synopsis
A weakening cold front may bring light rain and to the area late
Friday into early Saturday. A mainly dry inside slider may bring
gusty northerly winds and a reinforcing shot of cooler air. Weak
ridging aloft and northerly winds at the surface will likely bring
warm and dry conditions for the middle of next week.

Short term (tdy-sun)
skies are currently mostly clear save for a little bit of stratus
over the la coast. There are some clouds associated with a weak
trof to the NW of slo county. These clouds will begin to move into
the central coast later this morning. The morning marine layer
stratus pattern for la county remains unclear. The forecast eddy
that was supposed to help the low cloud formation has not really
started up yet. There is a chance that the stratus will not form.

The next problem for today is the rain that will come with the
weak front. All mdls have trended slower with this system and
timing has been pushed back accordingly. The front is currently
north of san francisco it will push down the coast and rain should
start over the NW tip of slo county late this afternoon. Clouds
will slowly increase through the day becoming partly cloudy south
of pt conception and mostly cloudy north.

Rain will continue to move to the south and east overnight
tonight. Rain will fall on slo and sba county and it will likely
reach ventura county by dawn. There is a chance that it will reach
la county.

The front will wash out on Saturday. There will be a chance of
showers in the morning but by afternoon the skies will turn partly
cloudy over most of the area and the clouds and showers will be
confined to the north slopes.

A little pop up ridge will move in Sunday, skies will be partly
cloudy at worst but most likely they will be mostly sunny.

Max temps really will not change that much from day to day. Every
days will see MAX temps a couple degrees blo normal with Saturday
a degree or two cooler than today and Sunday.

Long term (mon-thu)
all mdls agree that an inside slider will move through on Monday.

The mdls have been waffling back and forth with just how inside
this system will be... Currently all mdls agree that the system
will be far enough inside to limit shower chances to the mtns and
the interior vlys. Rainfall will be spotty and light. The bigger
issue will be the winds that will arrive with the cool air behind
the system. It looks like there will be strong advisory level
north winds across the mtns and into the vlys as well as the sba
south coast. MAX temps will change little from Sunday.

Tuesday and Wednesday will be dominated by ridging... Offshore flow
and much warmer than normal MAX temps. Look for 5 to degree jump
in temps on Tue and then for another 3 to 6 degrees on wed. Wed
max temps will likely be 10 to 15 degrees above normal.

The ridge will break down next Thursday. The GFS replaces it with
dry NW while the ec swings a big cool trof over the area. Right
now forecast favors the gentler GFS soln.

Aviation 24/1200z
at 1115z, there was a weak marine layer at 1800 feet with an
inversion to 2900 feet at 11 degrees celsius.

Moderate confidence in tafs. A weak marine layer currently in
place will likely only support few to scattered low clouds for
coastal sites south of point conception. There is a 30 percent
chance of low MVFR CIGS at klax, klgb, and ksmo through 17z. Low
confidence on timing of possible ifr to MVFR cigs/vsbys tonight,
forming as early as 00z at any coastal terminal. However, low
cigs/vsbys changes most likely within 2 hours of forecasted time.

For to the sites north of point conception, development of ifr to
MVFR CIGS also possible near the onset of steady light rain.

Flight category may be off by one for sites with rain.

Klax... Moderate confidence in taf. There is a 30 percent
chance of low MVFR CIGS through 17z. Ifr/low MVFR CIGS possible as
early as 00z, but most likely between 6z and 10z. A few light
showers possible after 12z. Light east winds after 12z will
remain below 10 kts.

Kbur... Good confidence in taf. There is a 30 percent chance of ifr
to MVFR cigs/vsbys after 06z.

Marine 24/245 am
winds and seas have fallen below SCA criteria. However, a few
local gusts to 25 kt cannot be ruled out through early this
morning from san nicolas to santa rosa islands. Patchy fog is
possible to the south of point conception this morning with a weak
eddy.

Wind will likely increase again on Saturday. There is a 70
percent chance SCA winds will prevail across the outer waters
Saturday through Tuesday. There will be periods of gale force
winds... With a 40 percent Saturday night and 60 percent chance
Monday into Tuesday. SCA to gale force winds may also extend into
the inner waters at times during this period, with the strongest
winds likely Monday afternoon and evening. Gusty winds may
continue across the outer waters through much of next week.

Lox watches/warnings/advisories
Ca... Beach hazards statement in effect until 9 am pdt this morning
for zones 40-41-87. (see laxcfwlox).

Pz... None.

Hazard potential outlook (sun-thu)
a weak rain event is expected through Saturday, with minimal
impacts.

High surf and strong rip currents are likely by Sunday.

Early next week, a stronger storm system is expected and could
bring gusty northerly winds and mountain snow.

Public... Rorke
aviation... Munroe
marine... Munroe
synopsis... Munroe
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 8 mi53 min NE 2.9 G 5.1 54°F 59°F1024 hPa
46221 - Santa Monica Bay, CA (028) 11 mi35 min 59°F4 ft
PXAC1 13 mi47 min NNW 2.9 G 2.9
BAXC1 14 mi47 min NNW 1.9 G 2.9
PSXC1 15 mi47 min ENE 1.9 G 2.9
PFXC1 16 mi47 min E 4.1 G 5.1 55°F 1023.2 hPa
PFDC1 16 mi47 min NE 4.1 G 4.1
OHBC1 - 9410660 - Los Angeles, CA 16 mi47 min 60°F1023.9 hPa
AGXC1 17 mi47 min NE 7 G 7 56°F 1023.7 hPa
PRJC1 18 mi47 min ENE 6 G 7
46256 19 mi43 min 59°F4 ft
46222 - San Pedro, CA (092) 21 mi46 min 59°F5 ft
46253 26 mi35 min 59°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi35 min E 5.8 G 9.7 57°F 58°F1023.1 hPa53°F

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi12 minE 49.00 miPartly Cloudy51°F46°F86%1023.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi12 minN 010.00 miFair53°F46°F80%1024.1 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi14 minENE 310.00 miA Few Clouds50°F48°F96%1024 hPa
Torrance, Zamperini Field Airport, CA9 mi18 minN 010.00 miA Few Clouds48°F46°F94%1024 hPa
Los Angeles / USC Campus Downtown, CA11 mi18 minN 010.00 miOvercast55°F46°F74%1023.8 hPa
Long Beach, Long Beach Airport, CA16 mi12 minN 010.00 miFair52°F43°F72%1024 hPa
Burbank - Bob Hope Airport, CA20 mi12 minN 010.00 miFair48°F41°F77%1023.1 hPa
Van Nuys, Van Nuys Airport, CA21 mi14 minN 010.00 miFair49°F46°F90%1023.4 hPa
Los Alamitos U. S. Army Airfield, CA22 mi67 minENE 410.00 miFair48°F43°F83%1023.7 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi12 minE 310.00 miFair51°F44°F77%1023.8 hPa

Wind History from LAX (wind in knots)
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Last 24hrNW10
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W18W17W11SW14W15SW10S5S4Calm3N3NE5NE3E5NE5E4
1 day agoW6W8W9W9W14W15W20W16W19
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W19W19W18W10NW5W8W8W7NW6NW6NW9NW12
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2 days agoE5E4E7E7SE9SE9
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SE5S6SE7SE5SE6E7E6E5E5NE5CalmE3E3E3E3E3CalmN4

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Fri -- 01:43 AM PDT     1.71 feet Low Tide
Fri -- 04:43 AM PDT     Moonrise
Fri -- 06:51 AM PDT     Sunrise
Fri -- 07:41 AM PDT     4.77 feet High Tide
Fri -- 02:27 PM PDT     -0.27 feet Low Tide
Fri -- 03:50 PM PDT     Moonset
Fri -- 07:08 PM PDT     Sunset
Fri -- 08:49 PM PDT     4.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.81.722.63.44.24.74.74.33.52.41.20.3-0.2-0.20.41.32.43.33.94.13.83.1

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Fri -- 01:35 AM PDT     1.79 feet Low Tide
Fri -- 04:44 AM PDT     Moonrise
Fri -- 06:51 AM PDT     Sunrise
Fri -- 07:33 AM PDT     4.95 feet High Tide
Fri -- 02:19 PM PDT     -0.25 feet Low Tide
Fri -- 03:50 PM PDT     Moonset
Fri -- 07:09 PM PDT     Sunset
Fri -- 08:41 PM PDT     4.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.91.82.22.83.74.44.94.94.43.52.31.20.2-0.2-0.10.51.52.63.64.14.23.93.1

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 (10,2,3,4)
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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.