Friday, August23, 2019 L-36.com


Marine Weather and Tides
Rancho Palos Verdes, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:19AMSunset 7:31PM Friday August 23, 2019 2:49 PM PDT (21:49 UTC) Moonrise 12:00AMMoonset 1:41PM Illumination 42% Phase: Third Quarter Moon; Moon at 23 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- 204 Pm Pdt Fri Aug 23 2019
Tonight..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 9 seconds.
Sat..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 9 seconds.
Sat 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 9 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
Sun..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 12 seconds. S swell 3 to 5 ft. Patchy fog in the morning.
Sun 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 12 seconds. SE swell 3 to 5 ft. Patchy fog after midnight.
Mon..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and se 3 ft. Patchy fog in the morning.
Mon 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. Patchy fog after midnight.
Tue..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 to 3 ft. Patchy fog.
Wed..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft. Patchy fog.
PZZ600 204 Pm Pdt Fri Aug 23 2019
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 1022 mb surface high was centered 900 nm W of Monterey. A 1006 mb low was near las vegas.


7 Day Forecast for Marine Location Near Rancho Palos Verdes, CA
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location: 33.7, -118.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 232121
afdlox
area forecast discussion
national weather service los angeles oxnard ca
221 pm pdt Fri aug 23 2019

Synopsis 23 1250 pm.

Low clouds continue to linger over the central coast this
afternoon, otherwise sunshine will be abundant across the area
through the afternoon. High pressure will build in this weekend
allowing for a warming trend through at least early next week,
mainly away from the coast. Night through morning low clouds and
fog are expected to stay confined to coastal areas.

Short term (tdy-mon) 23 212 pm.

A deeper than usual marine layer (2000-2500') and fairly strong
southeast flow combined to bring cooling to many areas today,
especially the valleys which were down by 5-10 degrees on
average. High pressure is expected to start building over the area
Saturday with weakening onshore flow. This will start a warming
trend that will continue into early next week. The marine layer
will likely shrink tonight but still push into the valleys. A more
traditional clearing pattern is expected Saturday as the
southerly flow today shifts back to a westerly flow. Biggest warm
up will be in the valleys but most coastal areas will warm at
least a couple degrees.

The high peaks in strength Sunday and Monday, but with onshore
trends expected Monday coastal areas may cool a degree or two
while inland areas continue to warm. Warmer valley highs should
top out around 100 while antelope valley temps approach 105 in the
warmest locations. Marine layer will be shallow but solid along
the coast during the night and morning hours. Most areas should
clear by afternoon but some clouds may linger at the beaches into
the afternoon, especially Monday with the onshore trends.

As for ivo, the forecast track shifted a little farther east but
it's not strengthening as much as earlier expected and models
still just showing minimal higher level moisture skirting the
western portion of the forecast area. So will keep a few clouds in
the forecast for that but otherwise the main impacts of ivo will
likely be increasing surf on south facing beaches. See beaches
discussion below for more details.

Long term (tue-fri) 23 220 pm.

High pressure will be the primary driver of our weather next week,
keeping temps at or slightly above seasonal norms. Models do show
the high weakening slightly as the remnants of ivo get pulled into
westerlies and ride up and over the ridge. This will knock
heights thicknesses down slightly tue-wed before the ridge
rebuilds later in the week and temps nudge upward again. Marine
layer clouds will remain along the coast during the night and
morning hours, otherwise skies will generally be clear.

Aviation 23 1724z.

At 1715z, the marine inversion at klax was based at 2800 feet.

The top of the inversion was 5400 feet with a temperature of
22 degrees celsius.

Overall, low to moderate confidence in 18z coastal and valley tafs
and high confidence in desert tafs. Current MVFR ifr are expected
to dissipate this afternoon although there is a 40% chance of MVFR
cigs remaining at ksba. For tonight, high confidence in return of
stratus to coastal valley sites, but low confidence in timing or
flight category.

Klax... Overall, moderate confidence in 18z taf. There is a 30%
chance that MVFR will not dissipate until 21z. For tonight, high
confidence in return of MVFR cigs, but low confidence in timing
(could be + - 3 hours of current 05z forecast).

Kbur... Overall, moderate confidence in 18z taf. High confidence in
vfr conditions through this evening. For tonight, high confidence
in return of stratus, but low confidence in timing (could be + -
3 hours of current 08z forecast) and flight category (50% chance
that CIGS will return at MVFR levels).

Marine 23 212 pm.

For all the coastal waters, high confidence in current forecast.

Today through Wednesday, winds and seas are expected to remain
below small craft advisory (sca) levels.

An abnormally large southeast to south swell from tropical storm
ivo will impact the waters Sunday through Tuesday. There is a
potential for the swell to peak between 5 and 7 feet. A swell from
this direction would cause strong surges around and inside the
vulnerable harbors, especially avalon and san pedro long beach.

Large breaking waves near the coast are also likely, which has a
history of capsizing small drifting boats.

Beaches 23 212 pm.

Tropical storm ivo, currently about 500 miles southwest of cabo
san lucas, will generate a southeasterly swell reaching california
Sunday and persisting through Tuesday. The peak of the swell
should occur Sunday afternoon through Monday morning with a period
around 14 seconds. While the peak swell heights will most likely
fall between 4 and 6 feet, there is a chance for a range of 5 and
7 feet.

Dangerous rip currents and large breaking waves on rock jetties
are certain. Surf heights should reach at least 4 to 6 feet over
south facing beaches, with a chance of peak surf reaching 6 to 8
feet especially for los angeles county, which would require a high
surf advisory.

There is a risk for impactful coastal flooding as well. The
highest tides will be late in the afternoon, and should reach
5.7 to 6.7 feet. If the peak swell ends up 3 to 5 feet, flooding
impacts would be minor and mainly in the form of beach erosion. If
the swell height ends up closer to 8 feet, more impactful
flooding would be expected for the vulnerable areas like pebbly
beach in avalon and the long beach peninsula if unprotected.

Lox watches warnings advisories
Ca... Beach hazards statement in effect from late Saturday night
through Tuesday morning for zones 40-41-87. (see laxcfwlox).

Pz... None.

Hazard potential outlook (mon-fri)
Elevated surf and strong rip currents are possible at area beaches
early next week.

Public... Mw
aviation... Rat
marine... Rat
beaches... Rat
synopsis... Stewart
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 2 mi56 min 67°F1012.1 hPa
AGXC1 4 mi50 min SE 8 G 8.9
PFDC1 4 mi50 min SE 8 G 8.9
PXAC1 5 mi50 min SE 4.1 G 11
46222 - San Pedro, CA (092) 6 mi27 min 68°F4 ft
46256 6 mi50 min 67°F3 ft
BAXC1 6 mi56 min E 8.9 G 11
PFXC1 6 mi50 min S 8 G 9.9
PSXC1 6 mi50 min SSE 7 G 11
PRJC1 7 mi50 min S 6 G 8
46253 11 mi50 min 70°F3 ft
46221 - Santa Monica Bay, CA (028) 20 mi54 min 71°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi50 min SW 8 G 8.9 1012 hPa (-0.7)
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 40 mi30 min ESE 9.7 G 12 69°F 1011.5 hPa67°F

Wind History for Angels Gate, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA7 mi2 hrsESE 910.00 miClear75°F60°F61%1011.8 hPa
Long Beach, Long Beach Airport, CA12 mi57 minS 610.00 miFair75°F59°F58%1011.5 hPa
Los Alamitos Army Airfield, CA15 mi1.9 hrsSSW 810.00 miFair77°F53°F45%1012.1 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi57 minS 510.00 miFair79°F59°F50%1011.2 hPa
Los Angeles, Los Angeles International Airport, CA17 mi57 minW 1410.00 miA Few Clouds80°F60°F51%1011.2 hPa
Fullerton, Fullerton Municipal Airport, CA21 mi57 minVar 510.00 miFair80°F57°F47%1010.8 hPa
Avalon Catalina Airport, CA21 mi59 minSE 910.00 miFair68°F59°F73%1011 hPa
Los Angeles / USC Campus Downtown, CA22 mi58 minN 09.00 miFair82°F60°F47%1010.4 hPa
John Wayne-Orange County Airport, CA23 mi57 minSW 1010.00 miA Few Clouds76°F59°F56%1011.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi59 minWSW 810.00 miFair74°F61°F64%1011.4 hPa

Link to 5 minute data for KTOA

Wind History from TOA (wind in knots)
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Last 24hrE7E8E8E8E8----------------------E5E7E9E8SE9SE11E9E9
1 day agoW13W15W15W15W8----------------------E8SE9SE11E9SE9E7E10E8
2 days agoW19W16W14W12--------------------------CalmCalmCalmCalmW7W10W12

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Fri -- 03:54 AM PDT     3.05 feet High Tide
Fri -- 06:20 AM PDT     Sunrise
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 08:20 AM PDT     2.55 feet Low Tide
Fri -- 01:40 PM PDT     Moonset
Fri -- 03:36 PM PDT     4.77 feet High Tide
Fri -- 07:30 PM PDT     Sunset
Fri -- 11:29 PM PDT     1.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.52.833.132.82.72.62.62.83.13.64.14.54.74.84.54.13.52.82.21.71.5

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Fri -- 03:49 AM PDT     3.12 feet High Tide
Fri -- 06:20 AM PDT     Sunrise
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 08:20 AM PDT     2.58 feet Low Tide
Fri -- 01:40 PM PDT     Moonset
Fri -- 03:32 PM PDT     4.93 feet High Tide
Fri -- 07:30 PM PDT     Sunset
Fri -- 11:23 PM PDT     1.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.62.93.13.132.92.72.62.62.83.23.74.24.64.94.94.64.13.52.82.21.71.5

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 (17,4,5,8)
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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.