Tuesday, September26, 2017 L-36.com


Marine Weather and Tides
Manhattan Beach, 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 6:44AMSunset 6:44PM Tuesday September 26, 2017 11:07 AM PDT (18:07 UTC) Moonrise 12:40PMMoonset 11:14PM Illumination 35% Phase: Waxing Crescent; Moon at 6 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- 919 Am Pdt Tue Sep 26 2017
Today..NW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 4 ft at 9 seconds.
Tonight..W winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 11 seconds. Patchy fog after midnight.
Wed..E winds 5 to 10 kt...becoming sw in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 11 seconds. Patchy fog in the morning.
Wed 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 2 ft at 11 seconds. Patchy fog after midnight.
Thu..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 10 seconds. Patchy fog in the morning.
Thu night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 9 seconds.
Fri..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 ft.
Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft. Patchy fog.
PZZ600 919 Am Pdt Tue Sep 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z...or 9 am pdt....A 1024 mb high was over the eastern pacific with a ridge extending to a 1023 mb high over idaho. A weak trough was along the ca coast.

7 Day Forecast for Marine Location Near Manhattan Beach city, CA
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location: 33.88, -118.41     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 261625
afdlox
area forecast discussion
national weather service los angeles oxnard ca
925 am pdt Tue sep 26 2017

Synopsis
Weak offshore flow will bring a warm and dry conditions with
mostly clear skies to the area through this week and into the
weekend. There will be some gusty north to northeast winds at
times over the region, especially below and through passes and
canyons. A few nighttime marine clouds may sneak into the l.A.

Coastal area by mid week. Temperatures will be a few degrees
above normal for many areas early this week, then increase to much
above normal for late this week and into the weekend.

Short term (tdy-thu)
gradients trending onshore today which was not expected and as a
result coast valley temps are not climbing as fast as they did
yesterday. Winds also weaker than yesterday though there is still
sufficient upper support to get some localized gusts to around 30
in the la mtns, mainly right around the highway 14 corridor. So
temps should top out lower than yesterday with an earlier sea
breeze arrival, though still above normal. Main forecast dilemma
for the short term is how the marine layer will respond tonight
and whether low clouds will reform and move up from the south as
the NAM suggests. Models still showing some northeast winds just
off the surface Wednesday morning and a lax-dag gradient of
around -2mb so there's still a little offshore push, though
weaker even than today. It's a tough call but more signs are
pointing towards at least some return of low clouds for SRN la
county late.

***from previous discussion***
a weak eddy will spin up tonight and its likely (but not certain)
that some marine layer clouds will spread over parts of the la
county coast as well as catalina island. The offshore flow will
also be weaker and this along with slightly lower hgts will knock
a few degrees off of temps everywhere but ESP across the coasts.

A weak ridge moves into the area on Thursday and hgts rise to
582dm up from Wednesday's 576 dm. This will lead to an increase in
temps across the vlys and interior sections. The offshore grad
decrease to almost neutral and this trend will counter the
increase in hgts and coastal temps will be similar to Wednesdays.

The weak eddy is forecast to continue and the la coast will again
see some morning low clouds.

Long term (fri-mon)
ec and GFS agree that an upper low will move through the pac nw
Friday and flatten the flow over ca. By Saturday the upper low
will be entering idaho and cyclonic flow will prevail over the
state. There is no eddy forecast and there is enough offshore flow
to keep the marine clouds away so the forecast calls for clear
skies. It is not too difficult to imagine some low clouds forming
and this will need watching. Whatever the case the very warm temps
that were forecast earlier seem rather unlikely now and MAX temps
now reflect the cooler forecast.

The ec and GFS do not agree on much at all for the Sunday and
Monday forecast. The one thing they do agree on is that onshore
flow will return. Think this will be enough to bring some morning
low clouds to the coasts as well as a cooling trend to the area.

Max temps should be several degrees blo normal both Sun and mon.

Aviation 26 0412z...

at 0400z, there was no marine inversion at klax.

Overall, good confidence in 06z TAF package. Weak offshore flow
will keep all sitesVFR through the period. There will be some
llws turbulence issues across the valleys and foothills as the
northeasterly flow develops overnight across ventura and los
angeles counties.

Klax... High confidence in 06z taf. There is a 15% chance of east
winds exceeding 7 knots 10z-18z. There is a 30% chance of llws
08z-20z.

Kbur... High confidence in 06z taf. There is a 40% chance of
moderate llws 08z-20z.

Marine 26 900 am...

for the outer waters, high confidence in current forecast. Winds
and seas will remain below SCA levels through Thursday then will
increase to SCA levels Friday and Saturday.

For the inner waters, moderate confidence in current forecast. For
the waters north of point sal, winds and seas will remain below
sca levels through Thursday with a 50% chance of SCA level winds
Friday and Saturday during the afternoon and evening waters. For
the inner waters south of point conception, winds and seas are
expected to remain below SCA levels through Saturday although
there is a 40% chance of SCA level winds Saturday afternoon across
the western half of the santa barbara channel.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (thu-mon)
there will be local fire weather danger through Saturday.

Public... Mw rorke
aviation... Rat
marine... Sweet
synopsis... Sweet
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 10 mi56 min S 4.1 G 5.1 71°F 65°F1010.3 hPa
PXAC1 11 mi50 min SE 8 G 8.9
PSXC1 12 mi50 min SE 6 G 7
BAXC1 12 mi50 min SSE 6 G 7
46221 - Santa Monica Bay, CA (028) 12 mi38 min 69°F2 ft
PFDC1 13 mi50 min E 4.1 G 5.1
OHBC1 - 9410660 - Los Angeles, CA 13 mi50 min 66°F1010.5 hPa
PFXC1 14 mi50 min SSE 7 G 8 70°F
AGXC1 14 mi50 min E 4.1 G 5.1 69°F 1010.4 hPa
PRJC1 16 mi50 min SSE 5.1 G 5.1
46256 17 mi46 min 66°F2 ft
46222 - San Pedro, CA (092) 19 mi38 min 68°F2 ft
46253 24 mi38 min 68°F2 ft
46262 34 mi38 min 68°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi38 min ESE 5.8 G 7.8 67°F1009.6 hPa

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, CA4 mi75 minVar 310.00 miPartly Cloudy74°F55°F52%1009.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA5 mi75 minN 010.00 miFair73°F53°F50%1010 hPa
Torrance, Zamperini Field Airport, CA7 mi81 minVar 510.00 miPartly Cloudy72°F59°F65%1010.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA11 mi77 minN 010.00 miFair74°F45°F36%1010 hPa
Los Angeles / USC Campus Downtown, CA12 mi81 minE 49.00 miFair76°F46°F36%1009.4 hPa
Long Beach, Long Beach Airport, CA14 mi75 minSW 410.00 miFair72°F57°F59%1010 hPa
Los Alamitos Army Airfield, CA20 mi70 minN 010.00 miFair73°F52°F47%1010.4 hPa
Burbank - Bob Hope Airport, CA22 mi75 minVar 510.00 miFair75°F30°F20%1009.1 hPa
Van Nuys, Van Nuys Airport, CA23 mi77 minN 010.00 miFair77°F30°F18%1009.3 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi75 minVar 310.00 miFair75°F52°F45%1009.6 hPa

Wind History from LAX (wind in knots)
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Last 24hrSW7SW12W10W11W15W14W13W12W13W8W5S3E3E3E4CalmE4E4E4E4E5SE534
1 day ago6W11W12W13W16W14W12W10W10W6NW43SE4CalmE3CalmE3CalmCalmNE3NE3E3Calm3
2 days agoSW10SW10SW12W12W14W12W14W10SW5W7SW4CalmE3E3NE4NE53E3CalmSE5Calm33NW3

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
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Tue -- 02:55 AM PDT     3.19 feet High Tide
Tue -- 06:44 AM PDT     Sunrise
Tue -- 07:02 AM PDT     2.75 feet Low Tide
Tue -- 12:39 PM PDT     Moonrise
Tue -- 01:43 PM PDT     4.34 feet High Tide
Tue -- 06:44 PM PDT     Sunset
Tue -- 09:45 PM PDT     1.39 feet Low Tide
Tue -- 11:13 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.93.13.23.132.82.72.833.33.74.14.34.34.23.83.32.72.21.71.51.41.5

Tide / Current Tables for Santa Monica, California
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Santa Monica
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Tue -- 02:49 AM PDT     3.28 feet High Tide
Tue -- 06:45 AM PDT     Sunrise
Tue -- 06:51 AM PDT     2.86 feet Low Tide
Tue -- 12:40 PM PDT     Moonrise
Tue -- 01:36 PM PDT     4.49 feet High Tide
Tue -- 06:44 PM PDT     Sunset
Tue -- 09:40 PM PDT     1.48 feet Low Tide
Tue -- 11:13 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.633.23.33.232.92.933.23.53.94.24.54.54.33.93.42.82.21.81.51.51.7

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 (14,3,4,5)
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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.