Monday, May29, 2017 L-36.com


Marine Weather and Tides
Hermosa Beach, CA

Version 3.4
What's New / NOTES
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 5:42AMSunset 7:59PM Monday May 29, 2017 8:35 PM PDT (03:35 UTC) Moonrise 9:54AMMoonset 11:58PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 208 Pm Pdt Mon May 29 2017
Tonight..W winds 10 to 15 kt in the evening...becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 3 ft at 8 seconds and sw 2 ft at 16 seconds. Patchy fog.
Tue..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft at 9 seconds and sw 2 ft at 15 seconds. Patchy fog in the morning.
Tue 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 8 seconds and sw 2 ft at 15 seconds. Patchy fog and drizzle.
Wed..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 ft at 7 seconds and sw 2 ft at 14 seconds. Patchy drizzle in the morning.
Wed night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 7 seconds. Patchy drizzle after midnight.
Thu..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 1 to 2 ft at 12 seconds. Patchy drizzle in the morning.
Thu night..W winds 10 to 15 kt...becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 1 to 2 ft at 11 seconds.
Fri..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 ft and sw 2 ft. Patchy fog.
Sat..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 ft and S 2 ft. Patchy fog.
PZZ600 208 Pm Pdt Mon May 29 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 2 pm pdt...a 1025 mb high was centered 600 nm W of point conception and a 1006 mb low was near las vegas.

7 Day Forecast for Marine Location Near Hermosa Beach, CA
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location: 33.85, -118.4     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 300328
afdlox
area forecast discussion
national weather service los angeles oxnard ca
828 pm pdt Mon may 29 2017

Synopsis
A trough of low pressure aloft will deepen across california mid
week, before gradually shifting east of the region late in the
week. This pattern will support a cooling trend with overnight to
morning low clouds and patchy drizzle becoming more widespread
through mid week, with a gradual warming trend late in the week.

Short term (tonight-thu)
satellite imagery showing low clouds and fog moving into many
of the coastal areas this evening. Acars sounding showing marine
layer depth around 1500 feet over the la basin this evening.

A weak upper level trough of low pressure combined with
strengthening onshore flow and an eddy circulation will help
to deepen the marine layer to around 2000 feet by tomorrow
morning. As a result, looking for low clouds and fog to
fill into most coastal valley areas overnight into Tuesday
morning, lingering near some of the beaches in the afternoon.

High temperatures on Tuesday are expected to be slightly cooler
across most areas. The antelope valley will see some gusty onshore
winds with very warm temperatures above 90 degrees which will
translate into elevated fire danger concerns. The foothills of
the antelope valley could see some gusts as high as 45 mph
by late afternoon and evening on Tuesday.

*** from previous discussion ***
at the beaches, a 'may gray' pattern will likely conclude the
month, possibly turning to 'june gloom' to begin the month of
june. Stratus clouds will struggle to clear at the beaches each
over the next couple of days and the beaches will likely remain
socked in.

As the trough starts to move east on Tuesday, another broader
trough circulation will move in. Instability with the trough will
bring mainly partly to mostly cloudy skies across the area for
Tuesday night through Thursday, along with the possibility of
night through morning drizzle. Pops have been tweaked a little to
account for measurable drizzle. A slight chance of showers remains
in the forecast for the interior portions of the area as well as
the mountains.

Long term (fri-mon)
ridging aloft over the pacific ocean builds in for Friday and
Saturday, then another trough will approach the area for next
weekend. Heights do climb a bit, so some warming was introduced;
however, onshore flow should remain and inhibit the air mass
getting too warm for this time of year. Temperatures looks to
remain near normal for the end of the week and into next weekend.

Aviation 29 2345z...

at 2345z, the marine inversion at klax was based at 1400 feet.

The top of the inversion was 4400 feet with a temperature of 22
degrees celsius.

For tonight, high confidence in return of stratus fog to all
coastal valley sites, but only moderate confidence in timing and
flight category. Based on satellite trends, moved up timing of
cigs to coastal areas between 00z-04z and valleys between 06z-
08z. Chance of CIGS lingering into afternoon hours on Tuesday at
koxr, kcma, klax, and ksmo.

Klax... For tonight, high confidence in return of stratus, but
moderate confidence in timing and flight category (40% chance
cigs come in at ifr levels).

Kbur... For tonight, high confidence in return of stratus, but
moderate confidence in timing (+ - 2 hours of current 08z
forecast).

Marine 29 100 pm...

for the outer waters, high confidence in current forecast. Small
craft advisory (sca) level winds will continue through Saturday.

Each afternoon evening, there will be a 30% chance of gale force
gusts developing.

For the inner waters, moderate to high confidence in current
forecast. For the waters north of point sal, SCA level winds are
expected each afternoon evening today through Friday then drop
below SCA levels on Saturday. For the waters south of point
conception, conditions are generally expected to remain below sca
levels through Saturday. However, there is a 30% chance of sca
level winds across the western half of the santa barbara channel
during the afternoon evening hours on Wednesday and Thursday.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 9 am pdt Wednesday for
zones 645-670-673-676. (see laxmwwlox).

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

Public... Gomberg hall
aviation... Gomberg
marine... Thompson
synopsis... Munroe
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PXAC1 9 mi47 min E 1.9 G 2.9
BAXC1 10 mi47 min SE 6 G 7
OHBC1 - 9410660 - Los Angeles, CA 11 mi47 min 61°F1011.8 hPa
PSXC1 11 mi47 min SSE 7 G 8.9
PFDC1 12 mi47 min SW 5.1 G 6
PFXC1 12 mi47 min S 8 G 8.9 61°F
46221 - Santa Monica Bay, CA (028) 12 mi35 min 64°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 12 mi53 min WSW 4.1 G 8.9 59°F 64°F1012.1 hPa
AGXC1 12 mi47 min WSW 8.9 G 11 61°F 1011.8 hPa
PRJC1 14 mi47 min S 6 G 7
46256 15 mi43 min 63°F2 ft
46222 - San Pedro, CA (092) 17 mi46 min 64°F3 ft
46253 22 mi35 min 63°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi35 min NNW 3.9 G 5.8 59°F 63°F1011.9 hPa (-0.0)56°F

Wind History for Los Angeles Berth 161,
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA5 mi45 minWNW 1010.00 miPartly Cloudy59°F53°F82%1011.8 hPa
Los Angeles, Los Angeles International Airport, CA6 mi42 minWSW 78.00 miMostly Cloudy60°F55°F86%1011.9 hPa
Hawthorne, Hawthorne Municipal Airport, CA6 mi42 minW 710.00 miPartly Cloudy62°F55°F80%1012 hPa
Long Beach, Long Beach Airport, CA13 mi42 minSSE 810.00 miFair62°F54°F75%1011.7 hPa
Santa Monica, Santa Monica Municipal Airport, CA13 mi44 minWSW 510.00 miOvercast60°F55°F86%1011.9 hPa
Los Alamitos U. S. Army Airfield, CA19 mi97 minSSW 710.00 miFair63°F55°F77%1011.8 hPa
Fullerton, Fullerton Municipal Airport, CA22 mi42 minSSW 510.00 miFair64°F55°F75%1011.3 hPa
Burbank - Bob Hope Airport, CA24 mi42 minS 610.00 miFair64°F54°F70%1010.3 hPa

Wind History from TOA (wind in knots)
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Last 24hr--------------------CalmCalmCalmNW5NW5W6W11NW10NW9NW9W9NW15NW11NW10
1 day ago--------------------Calm--CalmNW5N6NW10NW12NW15W14NW15NW15NW13--NW10
2 days ago--------------------W7W7W9NW9W11NW9NW9NW16W15W14W12--W12W12

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Mon -- 12:00 AM PDT     5.84 feet High Tide
Mon -- 05:44 AM PDT     Sunrise
Mon -- 07:19 AM PDT     -1.03 feet Low Tide
Mon -- 09:54 AM PDT     Moonrise
Mon -- 02:11 PM PDT     3.86 feet High Tide
Mon -- 06:57 PM PDT     2.35 feet Low Tide
Mon -- 07:57 PM PDT     Sunset
Mon -- 11:57 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.85.54.73.41.90.5-0.5-1-0.9-0.30.71.92.93.63.83.73.42.92.52.42.53.13.84.5

Tide / Current Tables for Los Angeles Harbor, Mormon Island, California
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Los Angeles Harbor
Click for Map
Mon -- 05:44 AM PDT     Sunrise
Mon -- 07:18 AM PDT     -1.03 feet Low Tide
Mon -- 09:54 AM PDT     Moonrise
Mon -- 02:12 PM PDT     3.91 feet High Tide
Mon -- 06:57 PM PDT     2.38 feet Low Tide
Mon -- 07:57 PM PDT     Sunset
Mon -- 11:57 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.64.73.41.90.5-0.5-1-0.9-0.20.81.92.93.63.93.83.42.92.52.42.63.13.84.5

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 (23,6,7,8)
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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.