Saturday, February24, 2018 L-36.com


Marine Weather and Tides
El Segundo, 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 6:25AMSunset 5:47PM Saturday February 24, 2018 7:41 PM PST (03:41 UTC) Moonrise 1:24PMMoonset 2:45AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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- 211 Pm Pst Sat Feb 24 2018
Tonight..W winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Wind waves 2 to 3 ft. W swell 2 to 3 ft at 15 seconds, building to 3 to 5 ft at 9 seconds after midnight.
Sun..NE winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 13 seconds.
Sun night..W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Wind waves 1 to 3 ft. W swell 2 to 3 ft at 15 seconds.
Mon..NW winds 5 to 10 kt, becoming sw 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 1 to 3 ft. W swell 2 to 3 ft at 14 seconds, building to 3 to 5 ft at 14 seconds in the afternoon.
Mon night..W winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. W swell 5 to 7 ft at 7 seconds, building to 7 to 8 ft at 7 seconds after midnight. Chance of showers.
Tue..Western portion, nw winds 15 to 20 kt. Elsewhere, winds variable 10 kt or less becoming W 15 to 20 kt in the afternoon. Wind waves 1 to 3 ft. W swell 6 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Chance of showers in the morning, then slight chance of showers.
Tue night..W winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 4 to 6 ft.
Wed..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 5 ft.
Thu..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 4 ft. Chance of rain.
PZZ600 211 Pm Pst Sat Feb 24 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 1 pm pst...a 1042 mb high was 1400 nm nw of point conception, and a 1027 mb low was over the southern california bight, with a trough of low pressure extending N along the ca coast. High pressure will persist over the eastern pac through Sun. Moderate to occasionally strong nw flow can be expected over the coastal waters through tonight.

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 250105
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
505 pm pst Sat feb 24 2018

Synopsis 24 326 pm.

Winds will be breezy through early Sunday along the central coast
and portions of ventura and los angeles counties. After another night
of very cold temperatures in wind sheltered areas, afternoon temperatures
will be near normal on Sunday then cool to below normal through the
work week. Breezy winds and a chance of light precipitation return to
the region Monday and Tuesday, then again Thursday through Saturday.

Snow levels will be at or below some passes at times this week.

Short term (tdy-tue) 24 127 pm.

Another cold night is expected tonight, but with some influx of
moisture and 500 mb heights on the rise, temperatures should be
up a few degrees compared to last night. A few isolated coastal
and valley areas will approach freezing, with the ojai valley
being the coldest and frost advisory will be issued.

Moderate north-to-south surface pressure gradients will continue
to generate breezy northwest to north winds through this evening,
then weaken become more northeasterly Sunday morning as the east-
to-west gradients strengthen. Besides the mountains in the
morning, not expecting the northeast winds to be near advisory,
but they should team up with a warmer airmass to push temperatures
to around normal for the first time since last Sunday. Highs near
70 should be common over the coastal and valley areas under
mostly sunny skies.

A cold low pressure system currently over the gulf of alaska will
drop into northern california on Monday, then sweep through
southern california on Tuesday. This track, like the last few
systems we have had, is extremely troublesome with precipitation
potentials highly sensitive to just a shift of a 100 miles in the
track. The 00z ECMWF teased us with the more westerly and wetter
track, but the 12z run has popped back inland a little and matches
perfectly with the gfs. Still expecting some wobbling in the
projections as we get closer, but the stability of the gfs
solution and the way this winter has been going puts a lot of
favor in the GFS solution. So the most likely picture for Monday
and Tuesday is a lot like what happened Sunday and Monday of this
week. Moist west-to-northwest flow should bring showers to areas
north of santa barbara, the tejon pass, and possibly far eastern
la county. There is a decent chance that ventura and southern sba
will be in the rain shadow of the northwest flow and mostly dry
from this. The storm track and position in the current models
would suggest the possibility of wrap-around moisture with
precipitation for the antelope valley. Advisory level snow cannot
be ruled out either for the interstate 5 corridor in the los
angeles and ventura county mountains and across the antelope
valley. During the day on Tuesday, will keep 20-30 pops over much
of the area in case there is a drift off shower or two like what
occurred last Monday. Rainfall totals will be highly variable with
about 0.33 inch on the upper end of the rain, but most of the
area should be less than 0.20 inch range. Snow levels look low,
down to 2,500 feet Monday night into Tuesday, and 1-3 inches is
possible on the north slopes of the ventura and la county
mountains... Including the i-5 tejon pass. The thunderstorm
potential is not zero, but not high enough to mention in the
forecast. There will be some gusty winds during this time, but it
does not look as windy as earlier this week. Maybe santa barbara
county and the la ventura coastal areas will need a low end wind
advisory, but that looks about it for now. Daytime temperatures
will be down from the Sunday peak, by about 10 degrees or so, but
night time temperatures should be up with the increased moisture.

Long term (wed-sat) 24 127 pm.

Sub-freezing temperatures look likely over some coastal and
valley areas in the morning, otherwise Wednesday looks pretty
benign sitting between the two weather systems of note, with below
normal temperatures and locally breezy southwest flow.

Still expecting a cold low pressure system parking itself off
washington state by Thursday, then slowly pushing to the east
Friday and Saturday. The position of the low remains favorable for
a cold front moving down the california coast Thursday into Friday,
with a decent chance of it holding together through southern
california. Confidence is growing for some widespread rain, but
confidence is still low as to how much as computer projections
continue to vary from run-to-run. With that said, the potential
exists for moderate rainfall with several of the course resolution
ensemble members showing about one inch or more for the area. If
the wetter solutions hold out, debris flows will threaten areas
around recent burn scars, but more likely of the minor variety.

Shower chances look to linger Friday night into Saturday with
moist westerly flow sticking around. Temperatures will remain
below normal.

Aviation 25 0104z.

At 00z, the marine layer depth around 630 feet.

Vfr conditions are expected throughout the period, except for a
chance of vlifr conditions at kprb. There is a chance of moderate
wind shear and turbulence at all terminals through 18z.

Klax...VFR conditions are expected throughout the period. There
is a 30 percent chance of moderate wind shear and turbulence
between 07z and 12z. Any east winds should remain less than 7
knots.

Kbur...VFR conditions are expected throughout the period. There
is a 30 percent chance of moderate wind shear and turbulence
between 05z and 13z.

Marine 24 105 pm.

For the outer waters, moderate confidence in current forecast.

Small craft advisory (sca) level northwesterly winds this
afternoon should increase to gale warning levels by sunset and
continue this evening. SCA winds should then persist late tonight
through thu, although there is a 40% chance of gale force gusts
Monday afternoon through tue.

For the inner waters, generally high confidence in current
forecast. For the waters north of point sal, SCA level northwest
winds are expected each afternoon evening from today through
tue. For the waters south of point conception, there is a 70%
chance of SCA level winds this afternoon evening for zone pzz650,
with a 30% chance of SCA gusts western portions of pzz655. From
Monday afternoon through Tuesday night, there is a 60% chance of
sca level winds, especially across western sections during the
afternoons and evenings.

Lox watches warnings advisories
Ca... Wind advisory in effect until 9 pm pst this evening for zones
34-35. (see laxnpwlox).

Frost advisory in effect from 1 am to 9 am pst Sunday for
zone 44. (see laxnpwlox).

Wind advisory in effect until 10 am pst Sunday for zones
53-54. (see laxnpwlox).

Wind advisory in effect until 3 am pst Sunday for zone 59. (see laxnpwlox).

Pz... Small craft advisory in effect until 9 pm pst Monday for zone
645. (see laxmwwlox).

Small craft advisory in effect until 9 pm pst this evening
for zone 650. (see laxmwwlox).

Gale warning in effect until 9 pm pst this evening for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (tue-sat)
A cold storm system will bring light precipitation to the area
into early Tuesday. Snow is possible down to the 2,500 foot
elevation, which would affect mountain pass travel, as well as
gale force winds and dangerous sea conditions. There could be
frost or freeze across the region Tuesday night and early wed.

Another storm is expected Thursday into Friday, with potentially
moderate rain and a chance for flooding issues.

Public... Kittell hall
aviation... Hall
marine... Sirard
synopsis... Kj
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 8 mi41 min W 9.9 G 11 54°F 57°F1023.1 hPa (+0.0)
46221 - Santa Monica Bay, CA (028) 11 mi41 min 58°F3 ft
PXAC1 13 mi41 min W 5.1 G 7
BAXC1 14 mi41 min WNW 2.9 G 2.9
PSXC1 15 mi41 min W 4.1 G 6
PFXC1 16 mi41 min W 6 G 11 55°F
PFDC1 16 mi41 min SW 6 G 8
OHBC1 - 9410660 - Los Angeles, CA 16 mi41 min 58°F1023.2 hPa (-0.0)
AGXC1 17 mi41 min WSW 8 G 9.9 55°F 1023.1 hPa (-0.4)
PRJC1 18 mi41 min W 11 G 13
46256 19 mi49 min 55°F2 ft
46222 - San Pedro, CA (092) 21 mi41 min 58°F3 ft
46253 27 mi41 min 60°F2 ft
46262 34 mi41 min 59°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi31 min NW 5.8 G 7.8 59°F1022.3 hPa

Wind History for Santa Monica, CA
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N18
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G27
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NE7
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1 day
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W11
G15
N3
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G28
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NW6
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G10
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G10
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G11
SE2
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G14
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W13
W17
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W18

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi48 minW 1310.00 miFair54°F37°F53%1023 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi48 minVar 410.00 miFair55°F34°F45%1023 hPa
Santa Monica, Santa Monica Municipal Airport, CA8 mi50 minWSW 810.00 miFair53°F39°F59%1022.8 hPa
Torrance, Zamperini Field Airport, CA9 mi54 minSW 410.00 miClear52°F32°F47%1023 hPa
Los Angeles / USC Campus Downtown, CA11 mi54 minVar 310.00 miFair53°F37°F55%1022.7 hPa
Long Beach, Long Beach Airport, CA16 mi48 minW 610.00 miFair56°F30°F39%1023 hPa
Burbank - Bob Hope Airport, CA20 mi48 minSE 410.00 miFair52°F30°F45%1021.7 hPa
Van Nuys, Van Nuys Airport, CA21 mi50 minVar 310.00 miFair52°F26°F37%1022 hPa
Los Alamitos Army Airfield, CA22 mi43 minN 010.00 miFair51°F27°F40%1023.3 hPa
Fullerton, Fullerton Municipal Airport, CA24 mi48 minSW 610.00 miFair54°F32°F43%1022.8 hPa

Wind History from LAX (wind in knots)
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Last 24hrN8
G16
N9N7N11N8N6E4CalmNW3CalmE3CalmCalmE3W3W8SW9SW13W13W13W15W15W16W13
1 day agoW16W10SW6SW4NW6N5W4NW10W13NW5NW9NW6N8
G17
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G20
NW13NW10
G20
W15W19W17W21NW14
G22
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NW9
2 days agoNW5N4N3NW3CalmNE4E5E5NE5E4E4NE5E7E7SE5W8W8W12W15W13
G18
W12W12W17W18

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Sat -- 01:45 AM PST     Moonset
Sat -- 03:58 AM PST     4.84 feet High Tide
Sat -- 06:28 AM PST     Sunrise
Sat -- 11:39 AM PST     0.05 feet Low Tide
Sat -- 12:24 PM PST     Moonrise
Sat -- 05:45 PM PST     Sunset
Sat -- 06:23 PM PST     3.10 feet High Tide
Sat -- 10:44 PM PST     2.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
33.64.24.74.84.64.13.32.31.30.60.10.10.40.91.62.32.83.13.12.82.52.22.2

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sat -- 01:45 AM PST     Moonset
Sat -- 03:48 AM PST     5.02 feet High Tide
Sat -- 06:28 AM PST     Sunrise
Sat -- 11:30 AM PST     0.07 feet Low Tide
Sat -- 12:24 PM PST     Moonrise
Sat -- 05:46 PM PST     Sunset
Sat -- 06:14 PM PST     3.20 feet High Tide
Sat -- 10:33 PM PST     2.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.33.94.54.954.84.13.22.21.30.50.10.10.51.11.82.533.23.12.92.52.32.3

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 (22,6,7,8)
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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.