Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
El Segundo, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:57AMSunset 7:05PM Tuesday March 19, 2019 4:25 PM PDT (23:25 UTC) Moonrise 5:48PMMoonset 6:20AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 207 Pm Pdt Tue Mar 19 2019
Tonight..SE winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 16 seconds and S 3 ft at 13 seconds. Slight chance of showers in the evening, then chance of showers.
Wed..SE winds 10 to 15 kt, becoming W in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 15 seconds and S 3 ft at 15 seconds. Chance of showers in the morning. Slight chance of Thunderstorms. Showers likely in the afternoon.
Wed night..NW winds 10 to 15 kt, becoming W 15 to 20 kt after midnight. Wind waves 2 to 3 ft. W swell 4 to 6 ft at 15 seconds, building to 6 to 8 ft at 14 seconds after midnight. Chance of showers and slight chance of Thunderstorms.
Thu..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 5 to 7 ft at 11 seconds. Chance of showers in the morning, then slight chance of showers.
Thu night..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 6 ft at 9 seconds. Slight chance of showers in the evening.
Fri..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 4 to 6 ft at 9 seconds.
Fri night..Western portion, nw winds 15 to 20 kt. Elsewhere, sw winds 10 to 15 kt becoming variable 10 kt or less after midnight. Wind waves 2 ft or less. W swell 3 to 5 ft at 8 seconds.
Sat..NW winds 15 to 20 kt. Combined seas 4 to 6 ft. Slight chance of showers.
Sun..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft.
PZZ600 207 Pm Pdt Tue Mar 19 2019
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 1007 mb low was located around 200 nm W of san francisco. The low will approach the west coast tonight through Wed and its associated frontal system will move across the waters Wed.


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 192039
afdlox
area forecast discussion
national weather service los angeles oxnard ca
139 pm pdt Tue mar 19 2019

Synopsis 19 108 pm.

Cooler than normal conditions with light showers tonight through
Thursday. Showers will become occasionally moderate tomorrow and
bring a slight chance of thunderstorms. Another weak front passes
through on Saturday with another chance for showers. Clear skies
and normal temperatures will return Sunday and Monday.

Short term (tdy-fri) 19 129 pm.

Partly to mostly cloudy skies due to a mixed bag of high clouds,
mountain wave clouds, and coastal low clouds. The dense fog from
earlier this morning is not expected tonight, but hazy skies will
likely continue into the evening south of santa barbara.

A low pressure system currently centered 500 miles west of los
angeles will move over san francisco tonight, then move little
through Wednesday before moving into utah Thursday night. Showers
are likely everywhere sometime between tonight and Thursday
night, but it remains difficult to highlight which 12 hour period
will be wet or not. This is why pops are on the meager side. This
storm system does not have a lot of lift or moisture to work
with, so expect more showers than hours of steady rain and
generally light amounts. As result, impacts will be minimal for
this event. The potential for thunderstorms remains pretty much
anywhere however on Wednesday, especially closer to the coast.

This ingredient pushes the upper range of rainfall amounts and
intensities, resulting in fairly a large range of options. In
general, amounts are expected to range 0.01 and 0.25 inches over
los angeles county, and 0.10 and 0.50 inches over the other three
counties. Isolated amounts up to around 0.75 inches are possible
under heavier showers or thunderstorms. Rainfall rates should
generally stay under 0.25 inches per hour, but could top out at
0.33 inches per hour basically anywhere under a thunderstorm. The
threat for debris flows are minimal. Impacts will likely stay
confined to travel issues from wet roads. Snow levels should stay
in the 5,000 to 6,000 foot range, but could lower to 4,000 feet
Wednesday or Thursday morning. Could see a dusting of snow on some
mountain roads, but accumulations should stay above 5,500 feet.

With the amounts trending lower, will hold off on any winter
weather advisories. There will be some gusty south winds as well,
into early Wednesday, which will shift to more west to
northwesterly by Thursday, but looks to stay under any wind
advisories at this point. Temperatures will be below normal to no
surprise.

Friday looks rain-free, with temperatures creeping up closer to
normal as a weak ridge forms aloft. Locally breezy west to
northwest winds should continue.

Long term (sat-tue) 19 138 pm.

A very weak upper level trough will pass through northern
california Saturday morning. The GFS and ECMWF remain at odds with
one another in terms of how far south any light rain will get, but
the GFS and a few of its ensembles are looking more like the
ecmwf. Up pops a little as a result, with all areas having a
slight chance or chance for rain. Regardless, any rain will be
minimal. Sunday through Tuesday look warmer as an upper level
ridge quickly forms behind the trough, and onshore flow weakens.

Above normal temperatures are looking likely under such a pattern.

Computer projections continue to show a trough forming over
northern california by Monday with a steady stream of moisture and
soaking rain. So far all the projections keep that stream parked
over northern california through at least Tuesday, keeping us dry.

That could change of course, and when or if that plume moves to
the south could result in rain of some significance.

Aviation 19 1859z.

At 18z at klax, there was a 1300 ft marine layer. The top of he
inversion was around 2200 ft with a temperature of 15 degrees c.

Low confidence in the 18z TAF package. Some coastal sections will
battle on and off with marine clouds through the day. A weak storm
bring scattered showers and an isolated thunderstorm to the region
tonight into Wednesday with little in the way of spatial or
temporal consistency throughout the period. Frequent changes in
visibility and ceiling.

Klax... Low to moderate confidence in the 18z taf. There is a 30%
chance that ifr to MVFR CIGS will continue beyond 19z or return
later this afternoon. OtherwiseVFR conds through 06z. Then MVFR
cigs should develop tonight with possible light showers late
tonight and wed. There is a 30% chance that east winds will reach
8-10 kt Wed morning.

Kbur... High confidence in the 18z TAF withVFR conds thru today.

MVFR CIGS should develop tonight with possible light showers late
tonight and wed.

Marine 19 139 pm.

For the northern outer waters zones (pzz670 and pzz673), expect
sca level south winds through tonight. Moderate confidence for
sca level NW to W winds Wed afternoon through Thu for the two
southern outer water zones (pzz673-676). There is another chance
for SCA level NW winds gusts across the outer waters by Saturday.

For the inner waters north of pt sal, SCA level gusts are
expected this afternoon through tonight. Winds and seas will be
below SCA levels Wednesday through early Saturday morning. There
will be a 60% chance for SCA level NW wind gusts by Saturday
afternoon into early Sunday morning.

For the inner waters south of pt conception, there is high
confidence that winds and seas will be below SCA levels through
wed. On Wed evening into Wed night, there is a 40% chance of sca
level W winds mainly for the western portions. There will be a 40%
chance for SCA for the eastern santa barbara channel Friday
afternoon, mainly the western portion, then by Saturday afternoon,
a 60% chance for widespread SCA level gusts affecting the inner
waters.

Beaches 19 310 am.

A relatively large wnw swell is expected to move into the coastal
sections tonight and Wednesday. Due to the west component of this
swell, high surf is also possible south of point conception. The
breakers are expected to rise to just above 10 feet on the central
coast and around 4-7 feet south of point conception. The
strongest impact will be felt on west facing beaches.

In addition, a significant high tide each morning will probably
cause a bit of beach erosion and minor tidal overflow.

Lox watches warnings advisories
Ca... High surf advisory in effect from 11 pm this evening to 11 pm
pdt Wednesday for zones 34-35. (see laxcfwlox).

High surf advisory in effect from 5 am Wednesday to 3 pm pdt
Thursday for zones 40-41-87. (see laxcfwlox).

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

Hazard potential outlook (fri-tue)
High surf and dangerous rip currents are expected over the
weekend.

Public... Kittell
aviation... Sweet
marine... Sweet
beaches... Ck sweet
synopsis... Tf
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 8 mi37 min SSW 8.9 G 9.9 57°F 60°F1013.7 hPa
46221 - Santa Monica Bay, CA (028) 11 mi25 min 59°F3 ft
PXAC1 13 mi37 min ESE 11 G 13
BAXC1 14 mi37 min E 13 G 14
PSXC1 15 mi37 min SSE 8.9 G 12
OHBC1 - 9410660 - Los Angeles, CA 16 mi37 min 61°F1014.3 hPa
PFDC1 16 mi37 min SE 8 G 9.9
PFXC1 16 mi37 min SE 12 G 14 61°F
AGXC1 17 mi37 min SSE 9.9 G 12 59°F 1014 hPa
PRJC1 18 mi37 min SE 11 G 12
46256 19 mi25 min 59°F3 ft
46222 - San Pedro, CA (092) 21 mi25 min 59°F3 ft
46253 27 mi25 min 60°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 34 mi35 min SSE 9.7 G 12 56°F 58°F2 ft1013.9 hPa55°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 mi32 minSSE 1010.00 miMostly Cloudy64°F51°F63%1013.5 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi32 minSE 610.00 miFair63°F50°F63%1013.7 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi34 minSSE 510.00 miFair64°F52°F65%1013.2 hPa
Torrance, Zamperini Field Airport, CA9 mi94 minE 810.00 miMostly Cloudy61°F51°F72%1013.9 hPa
Los Angeles / USC Campus Downtown, CA11 mi38 minVar 410.00 miFair65°F50°F59%1012.8 hPa
Long Beach, Long Beach Airport, CA16 mi32 minSSE 107.00 miA Few Clouds62°F52°F70%1013.7 hPa
Burbank - Bob Hope Airport, CA20 mi32 minSE 1310.00 miFair with Haze66°F46°F50%1011.3 hPa
Van Nuys, Van Nuys Airport, CA21 mi34 minSSE 1010.00 miFair65°F50°F59%1012.2 hPa
Los Alamitos Army Airfield, CA22 mi87 minS 99.00 miMostly Cloudy62°F55°F78%1014.5 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi32 minS 510.00 miFair65°F51°F61%1012.9 hPa
Los Angeles, Whiteman Airport, CA24 mi35 minESE 8 G 166.00 miOvercast with Haze66°F46°F49%1013.5 hPa

Wind History from LAX (wind in knots)
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Last 24hrW9W6SW4W4S3E5E5E5CalmCalmW4CalmCalmSE3CalmCalmCalmSE6CalmW7W8W104SE10
1 day agoW12W13W11SW9W4SE7E8E6E6E7NE4CalmCalmE3SE4E3E5SE4CalmW9W9W11W13W11
2 days agoSW10W9W10W5CalmSE4E3SE5E6NE3CalmE3CalmCalmNE3NE5NE53CalmW8W10W12W13W12

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
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Tue -- 02:47 AM PDT     0.80 feet Low Tide
Tue -- 06:19 AM PDT     Moonset
Tue -- 06:58 AM PDT     Sunrise
Tue -- 08:53 AM PDT     5.95 feet High Tide
Tue -- 03:32 PM PDT     -1.14 feet Low Tide
Tue -- 05:48 PM PDT     Moonrise
Tue -- 07:04 PM PDT     Sunset
Tue -- 09:49 PM PDT     4.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.71.710.81.32.23.54.85.75.95.54.42.81.1-0.2-1-1.1-0.40.92.43.84.74.94.4

Tide / Current Tables for Santa Monica, Municipal Pier, California (2)
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Santa Monica
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Tue -- 02:40 AM PDT     0.83 feet Low Tide
Tue -- 06:20 AM PDT     Moonset
Tue -- 06:59 AM PDT     Sunrise
Tue -- 08:43 AM PDT     6.09 feet High Tide
Tue -- 03:25 PM PDT     -1.19 feet Low Tide
Tue -- 05:48 PM PDT     Moonrise
Tue -- 07:04 PM PDT     Sunset
Tue -- 09:39 PM PDT     5.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.61.610.91.42.53.85.15.96.15.54.22.60.9-0.4-1.1-1.1-0.21.12.744.854.4

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 (19,4,5,8)
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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.