Saturday, April29, 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 6:03AMSunset 7:37PM Saturday April 29, 2017 4:30 AM PDT (11:30 UTC) Moonrise 9:05AMMoonset 11:25PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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- 308 Am Pdt Sat Apr 29 2017
.small craft advisory in effect through this afternoon...
Today..NE winds 10 to 20 kt with gusts to 25 kt...becoming N 10 to 20 kt in the afternoon. Combined seas 5 to 6 ft dominant period 10 seconds.
Tonight..NW winds 10 to 20 kt...becoming W 5 to 10 kt after midnight. Wind waves 2 to 4 ft in the evening...becoming 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Sun..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 11 seconds and sw 2 ft at 18 seconds.
Sun night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and sw 2 ft at 17 seconds. Patchy fog after midnight.
Mon..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 9 seconds. Patchy fog in the morning.
Mon night..SW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 4 ft at 9 seconds. Patchy fog after midnight.
Tue..S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 4 ft. Patchy fog.
Wed..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 308 Am Pdt Sat Apr 29 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 pdt...a 1031 mb high pressure center was located 600 nm west of san francisco and a 1007 mb low pressure center was located in the gulf of alaska. A thermal trough was located along the california coastline.

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 291025
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
325 am pdt Sat apr 29 2017

Synopsis
Gusty offshore winds with support for continued warming west of
the mountains can be expected through Saturday. A transition to
onshore flow will bring cooler conditions to the coast and some
valleys with warming across interior areas as high pressure builds
overhead through at least early next week.

Short term (tdy-mon)
the north wind event has now transitioned to a NE wind event. The
inside slider trajectory was a little more eastward than fcst and
this reduced the amount of upper level support so the winds will
be a little weaker than advertised. There will still be a good
amount of northeasterly advisory wind gusts near the la/vta county
line. The upper support vanishes and the gradients relax early in
the afternoon and this will end the winds. In fact most of the
coastal areas will see a decent sea breeze during the mid and late
afternoon. The other big story today will be the MAX temps. Look
for 90s in the la/ventura valleys and near 90 for inland coastal
zones. The record MAX temps are pretty high so there will likely
be no records set today. The best bets for records will ucla (91)
and sba (85).

Offshore flow will continue Sunday but will only be half a strong
as it is now and by afternoon it will actually reverse and become
onshore. There will be no upper support so while there will be
some northeast canyon winds in the morning they will not reach
advisory levels. The lessening offshore flow will result in good
cooling for the coastal areas and some cooling in the vly. The
increasing hgts will actually allow for warming across the
interior.

Not much excitement for Monday. Upper level pattern is about the
same. There is some debate if an eddy will spin up or not. Right
now the consensus is that it will not or if it does it will be too
weak to create stratus. This could easily not be correct so will
have to keen an eye on it and see if the morning forecast needs a
little stratus added to it for la county. More cooling for the
coasts and vlys as the onshore push continues but the interior
will remain rather warm.

Long term (tue-fri)
the ec and the GFS agree well on the forecast through Wednesday.

Both forecast a weak east pac ridge to set up just off the state.

Both forecast week offshore flow from the north and weak onshore
flow to the east. There will likely be some night through morning
low clouds and fog across the la coast. MAX temps will continue
above normal ESP from the vlys and inland.

The ec breaks the ridge down quicker than the GFS starting
Thursday. It also forecasts much stronger onshore flow. If it
turns out to be correct MAX temps will be much cooler than the gfs
or the forecast. Will have to keep an eye on this and see which
mdl trends to the other.

Aviation 29/0615z
at 0540z at klax, there was no marine layer or inversion.

Very high confidence in cavu conditions for at least the next 30
hours. Decent confidence in the winds forecast. Transition times
for wind changes may be off by an hour. There is a 30 percent chc
that the easterly winds will not develop at klax and klgb.

Klax... Very high confidence in cavu conditions for at least the
next 30 hours. Fair confidence in wind forecast. There is a 30
percent chc that the north winds will persist through 12z. There
is also a 30 percent chc the the easterly winds will not develop.

Kbur... Very high confidence in cavu conditions for at least the
next 24 hours. Wind shift transition times may be off by an hour.

There will be lgt-ocnl mdt turbc in the area through 15z.

Marine 29/230 am...

small craft advisory (sca) conditions will continue across the
outer waters through at least Monday and possibly into Tuesday.

Sca conditions will continue in portions of the inner waters
through this afternoon... Primarily near the coast from port
hueneme through malibu.

Due to the strong winds... Seas will also be large and very
choppy.

Lox watches/warnings/advisories
Ca... Wind advisory in effect until 2 pm pdt this afternoon for
zones 40-41-44>46-53-54-88-547. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 pm pdt this afternoon
for zones 650-655. (see laxmwwlox).

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

Hazard potential outlook (mon-fri)
no significant hazards expected.

Public... Rorke
aviation... Rorke
marine... Kj
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 mi54 min NNE 8 G 18 72°F 52°F1012.7 hPa
46221 - Santa Monica Bay, CA (028) 11 mi30 min 56°F4 ft
PXAC1 13 mi42 min NE 8.9 G 11
BAXC1 14 mi42 min ENE 14 G 20
PSXC1 15 mi42 min ENE 13 G 18
PFXC1 16 mi42 min ENE 8.9 G 16 72°F
PFDC1 16 mi42 min NNE 24 G 29
OHBC1 - 9410660 - Los Angeles, CA 16 mi42 min 59°F1012.6 hPa
AGXC1 17 mi42 min NNE 21 G 24 71°F 1012.1 hPa
PRJC1 18 mi42 min NE 23 G 28
46256 19 mi38 min 60°F3 ft
46222 - San Pedro, CA (092) 21 mi41 min 57°F5 ft
46253 26 mi30 min 57°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi30 min NE 19 G 25 67°F 61°F1012.4 hPa (+1.0)39°F

Wind History for Santa Monica, CA
(wind in knots)    EDIT      (on/off)   Help
5
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Last
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N25
G33
N21
N22
G27
N24
G37
N22
G36
N18
G27
N20
G28
N20
G32
N17
G23
W18
NW10
G14
NW10
SW7
N16
G20
N19
G27
N20
G29
N25
G33
N23
G31
N16
G25
N13
G26
NE14
G21
NE14
G21
N17
G21
N10
G15
1 day
ago
SE3
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W4
NW2
W7
S3
S4
S2
G5
W8
W9
W8
G11
SW5
W8
SW5
S2
N17
G26
N17
G22
N20
G32
N21
G33
N21
G33
N19
G35
N21
G31
N21
G27
N27
G37
2 days
ago
E6
E4
NE6
NE1
W2
W8
W8
W5
SW6
SW7
S7
SW3
W13
W4
S3
SE8
E7
E5
E7
NE5
SE5
G8
E1
E6
G9
E4
G8

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi37 minE 310.00 miFair67°F14°F13%1012.7 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi37 minN 010.00 miFair65°F19°F17%1012.7 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi39 minN 610.00 miFair70°F12°F10%1012.5 hPa
Los Angeles / USC Campus Downtown, CA11 mi43 minE 510.00 miFair72°F14°F11%1012 hPa
Long Beach, Long Beach Airport, CA16 mi37 minENE 1010.00 miFair70°F7°F8%1012.5 hPa
Burbank - Bob Hope Airport, CA20 mi37 minNNE 20 G 3110.00 miFair and Breezy68°F9°F10%1011.5 hPa
Van Nuys, Van Nuys Airport, CA21 mi39 minN 13 G 2910.00 miFair67°F10°F11%1012.9 hPa
Los Alamitos U. S. Army Airfield, CA22 mi32 minNE 19 G 2910.00 miFair and Breezy71°F14°F11%1012.8 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi37 minENE 13 G 2110.00 miFair72°F12°F10%1012.6 hPa

Wind History from LAX (wind in knots)
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Last 24hrNW20
G27
NE17
G25
N13
G23
N13
G21
N17
G24
N18
G24
N12
G19
N13
G21
N16
G23
W24W22W22
G25
W20W14NW13N13
G28
N11
G18
N10
G19
N13
G20
N10
G19
N11NE8NE6E3
1 day agoSE4CalmNE3W5W6W7W10W13W9W17W18W13W11W12W11W10N14
G23
N16
G33
N16
G24
N13
G25
N16
G24
N14
G20
N11
G25
N23
G31
2 days agoE6E5E5E6CalmSW10W11SW10SW12W13W12SW16W20
G25
W16SW11SW11SW9S4S5SE5S6S44S4

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Sat -- 06:06 AM PDT     Sunrise
Sat -- 06:39 AM PDT     -0.96 feet Low Tide
Sat -- 09:05 AM PDT     Moonrise
Sat -- 01:11 PM PDT     3.71 feet High Tide
Sat -- 06:07 PM PDT     1.75 feet Low Tide
Sat -- 07:36 PM PDT     Sunset
Sat -- 11:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.24.12.61.1-0.1-0.8-0.9-0.40.51.62.63.43.73.63.12.521.81.92.53.34.35.1

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sat -- 06:06 AM PDT     Sunrise
Sat -- 06:30 AM PDT     -0.98 feet Low Tide
Sat -- 09:05 AM PDT     Moonrise
Sat -- 01:02 PM PDT     3.84 feet High Tide
Sat -- 05:57 PM PDT     1.82 feet Low Tide
Sat -- 07:36 PM PDT     Sunset
Sat -- 11:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.342.51-0.2-0.9-0.9-0.30.71.82.93.63.83.73.12.521.82.12.73.74.65.4

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 (7,2,3,4)
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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.