Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Palos Verdes Estates, 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 7:01AMSunset 6:15PM Thursday October 19, 2017 2:20 AM PDT (09:20 UTC) Moonrise 6:49AMMoonset 6:37PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 856 Pm Pdt Wed Oct 18 2017
Tonight..Winds variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 3 ft at 15 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Thu..NE winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 3 ft at 15 seconds.
Thu night..Western portion, W winds 20 to 30 kt. Elsewhere, W winds 5 to 10 kt becoming 10 to 15 kt after midnight. Combined seas 3 to 5 ft dominant period 7 seconds. Patchy drizzle after midnight.
Fri..Western portion, nw winds 15 to 20 kt becoming W 15 to 25 kt in the afternoon. Elsewhere, nw winds 5 to 10 kt becoming W 10 to 15 kt in the afternoon. Wind waves 2 to 4 ft. W swell 2 to 3 ft at 7 seconds, building to 3 to 5 ft at 8 seconds in the afternoon. S swell 2 ft. Patchy drizzle in the morning.
Fri night..Western portion, nw winds 20 to 25 kt becoming 10 to 15 kt after midnight. Elsewhere, sw winds 10 to 15 kt becoming N after midnight. Combined seas 5 to 7 ft dominant period 13 seconds.
Sat..NE winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 to 3 ft. W swell 3 to 4 ft at 16 seconds.
Sat night..NW winds 10 to 15 kt, becoming N 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft.
Sun..NW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Mon..N winds 15 to 20 kt with gusts to 25 kt. Combined seas 3 to 5 ft.
PZZ600 856 Pm Pdt Wed Oct 18 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...a 1021 mb high was located 600 nm west of point conception and a 1008 mb thermal low was over se california with a trough of low pressure along the southern ca coast. The high over the eastern pac will move south through Thu night, with a surface cold front expected to move into the northern outer waters by late Thu night.

7 Day Forecast for Marine Location Near Palos Verdes Estates, CA
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location: 33.81, -118.41     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 190627
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
1127 pm pdt Wed oct 18 2017

Synopsis
Night and morning low clouds and fog can be expected for the
coast and some valleys through Friday, otherwise fair skies and
cooler temperatures will prevail across southwestern california
through the rest of the week. There will be gusty west to north
winds mainly for the mountains and deserts at times. High pressure
will build into the area this weekend for gusty offshore flow and
well above normal temperatures into the middle of next week.

Short term (wed-sat)
strong northerly gradients this evening over sba county (e.G., -5.1
mb sba-smx at 02z) resulted in gusty northwest to north winds below
and through the passes and canyons over the sba county south coast
and adjacent mtns this evening. Some gusts between 35 and 45 mph
have been observed, and will continue thru the rest of the evening.

Locally gusty northwest winds up to 35 mph have also been observed
along the i-5 corridor in NW l.A. County this evening.

Skies over the region were mostly clear this evening, except for
some low clouds along portions of the central coast. The low clouds
should expand a bit over the central coast thru the night, although
some offshore flow will likely keep the low clouds relatively close
to the coast. The marine inversion at vbg at 00z was rather shallow
at around 800 ft deep, which should help any low clouds lower
overnight and develop patchy dense fog. S of pt conception, an eddy
is forecast to develop over the socal bight and help to form low
clouds which should push into the l.A. County coast overnight and
possibly into the san gabriel vly late tonight, and vtu county coast
around sunrise. The marine layer was 700 ft deep at lax this
evening, and patchy dense fog cannot be ruled out with any low
clouds late tonight. Otherwise, mostly clear skies will prevail
across the region thru the night.

Weak upper level ridging will be over the forecast area tonight into
thu morning. This will be followed by lowering 500 mb heights thu
afternoon thru Fri as an upper level trough approaches the ca coast
from the E pac into Thu evening then moves mainly over central and
northern ca Thu night into Fri morning. A surface cold front is
expected to mostly dissipate just N of slo county Fri morning. The
upper trof will move E later Fri and Fri night, with upper level
ridging building along the ca coast on sat.

There will be some low clouds along the coastal areas Thu morning,
otherwise generally fair skies with some hi clouds at times can be
expected thru Thu afternoon. The marine layer will deepen Thu night
with low clouds expected to expand well inland, and combined with
moisture from the dissipating front later Thu night into fri
morning, there will be mostly cloudy skies for much of the region at
that time. The dissipating cold front should bring some clouds to
the N mtn slopes by early Fri as well. Partly cloudy skies should
prevail across the region Fri afternoon and evening, then mostly
clear skies can be expected later Fri night through Sat as offshore
flow strengthens.

Some offshore flow night and morning hours can be expected over
slo sba counties and interior vtu l.A. Counties thru Thu morning.

Gusty N canyon winds will continue each evening over the sba county
s coast and mtns thru fri, with the strongest winds expected fri
night, likely to advisory levels. Gusty NW winds can also be
expected in the l.A. Vtu county mtns mainly along the i-5 corridor
and into the antelope vly Fri into Fri evening, then winds will turn
northerly later Fri night into Sat morning. Winds are expected to
reach advisory levels at times thru the period. As the winds turn
more northerly later Fri night they should also affect portions of
the santa clarita vly, san fernando vly, sern vtu county vlys and
santa monica range, with advisory level gusts not out of the
question at times into Sat morning. Finally, gusty NW winds possibly
to advisory levels along the central coast Fri afternoon will turn n
and NE Fri night into Sat morning.

Temperatures will be considerably cooler on Thu but still around or
slightly above normal for most areas, then temps should fall to a
few degrees below normal overall for fri. Temps on Sat will warm up
for areas S and W of the mtns, where above normal temps can be
expected, especially from the sba county S coast thru l.A. County.

For the interior vlys of slo and sba counties, and the mtns and
deserts, temps will remain several degrees below normal.

***from previous discussion***

Long term (sun-wed)
strong high pressure aloft will develop Sunday and last a good
portion of next week while a cold trough sets up over the eastern
part of the us. The offshore flow which began Saturday will
increase Sunday then mostly level off in the 3-5mb range through
at least the middle of next week. Not much in the way of upper
level support so winds probably will remain below advisory levels.

However, this event is expected to be at least a few degrees
warmer than the previous santa ana event earlier this week when
coastal temps were in the upper 90s. So with this upcoming event
highs in the lower 100s seem reasonable for coastal areas away
from the immediate coast and a few degrees warmer for the valleys,
peaking Monday and Tuesday, then just minor cooling Wednesday.

Record highs in this period are mostly in the upper 90s so there
could be quite a few new records set next week. We'll likely need
at least heat advisories for much of la ventura counties and
possibly warnings.

Aviation 19 0620z.

At 05z, the marine inversion was based around 1600 feet at klax.

The top of the marine inversion was around 2200 feet with a
temperature near 20 degrees celsius. There was another inversion
up to 3600 feet.

At coastal terminals except ksba and kcma, lifr to ifr conditions
will likely spread in through 14z. There is a chance of vlifr
conditions between 08z and 15z.VFR conditions should redevelop
between 16z and 20z. An early arrival of ifr to MVFR conditions is
possible on Thursday night.

At all other terminals, there is a chance of vlifr to lifr
conditions between 10z and 15z, otherwiseVFR conditions will
likely linger throughout the period.

Klax... There is a 60 percent chance of lifr to ifr conditions
spreading into klax between 08z and 12z. There is a 30 percent
chance of vlifr conditions between 10z and 14z.VFR conditions
could redevelop as soon as 17z or as late as 20z.

Kbur... There is a 50 percent chance of lifr conditions between 13z
and 17z, otherwiseVFR conditions will persist.

Marine 18 800 pm...

for the outer waters, high confidence in current forecast. Small
craft advisory (sca) level winds are expected to continue through
Sunday. There is a 40% of gale force winds Friday and Saturday.

For the inner waters, moderate confidence in current forecast. For
the waters north of point sal, there is a 30% chance of SCA level
winds this evening then a 60% chance of SCA level winds each
afternoon evening Thursday through Saturday. For the inner waters
south of point conception, SCA winds has prevailed across western
portions of zone 650 this evening then there is a 70% chance of
sca winds Thursday and Friday in the afternoon and evening for
both zones 650 and 655.

A large storm off western canada will generate 40 foot seas in
that area. This will produce a large long-period NW swell, moving
into our waters by Friday. Seas up to 15 feet are likely, with 20
foot seas possible across the outer and northern waters. There
will likely be dangerous breaking waves on the central coast
through the weekend with dangerous conditions in near harbors.

South of point conception... The westerly swell will approach high
surf criteria.

Beaches 18 820 pm.

Central coast... A significant storm system in the gulf of mexico
has caused large swells to develop. These large northwest swells
will approach the central coast by Friday morning. A high surf
advisory has been issued valid for the central coast Friday
morning through Sunday morning. Surf will quickly rise to around
10 to 12 feet initially Friday mid morning. By Friday evening
through early Saturday, surf should increase to between 14 and 20
feet. Surf will then begin to lower through Saturday afternoon
into Sunday morning, but remain above 10 feet. Some impacts from
these large and powerful waves and strong currents would be the
risk of ocean drowning. Also sneaker waves can suddenly overrun
previously dry beaches and jetties. With surf approaching 20 feet,
some low lying beach parking lots, harbor walkways and
campgrounds could see local coastal flooding during the peak of
the highest surf.

S of pt. Conception...

a fairly significant long period south swell will continue to move
across coastal waters through Thursday afternoon bringing elevated
surf between 3 and 6 feet for south facing beaches. However, gusty
west winds are forecast to develop across the ventura coast and
the short period wind waves could pile up to the surf zone causing
local sets to 7 feet Thursday afternoon through early evening.

There is high confidence of strong rip currents during this
period. A beach hazards statement remains in effect through this
evening.

The large northwest swell forecast to bring very large surf to the
central coast should filter some of the energy into the southern
california bight allowing for higher surf potential by this
weekend. Confidence is high at least another beach hazards
statement will be needed or possibly a high surf advisory if surf
is expected to be higher. Will continue to monitor the situation.

Lox watches warnings advisories
Ca... High surf advisory in effect from 6 am Friday to noon pdt
Sunday for zones 34-35. (see laxcfwlox).

Beach hazards statement in effect through Thursday evening
for zones 40-41. (see laxcfwlox).

Pz... Small craft advisory in effect until 3 am pdt Thursday for
zones 650-670. (see laxmwwlox).

Small craft advisory in effect until 9 am pdt Friday for
zones 673-676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
hot temperatures and elevated fire weather conditions are
expected Sunday into early next week as another santa ana wind
event develops. Record heat is possible for Monday and Tuesday.

Large surf and strong rip currents are expected along central
coast beaches Saturday and Sunday.

Public... Sirard mw
aviation... Hall
marine... Sweet sirard
beaches... Kaplan
synopsis... Sirard
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PXAC1 8 mi57 min NNW 1.9 G 1.9
PFDC1 10 mi51 min Calm G 1
PSXC1 10 mi51 min Calm G 1.9
OHBC1 - 9410660 - Los Angeles, CA 10 mi51 min 68°F1012.8 hPa
BAXC1 10 mi51 min S 1 G 1
PFXC1 11 mi51 min SSW 1 G 1 67°F
AGXC1 11 mi51 min WSW 1.9 G 2.9 67°F 1012.7 hPa
46221 - Santa Monica Bay, CA (028) 12 mi51 min 67°F4 ft
PRJC1 13 mi51 min WSW 2.9 G 2.9
46256 13 mi59 min 67°F5 ft
46222 - San Pedro, CA (092) 14 mi51 min 68°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 14 mi51 min NE 4.1 G 5.1 65°F 68°F1012.9 hPa
46253 20 mi51 min 69°F4 ft
46262 32 mi51 min 70°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 34 mi41 min WSW 5.8 G 7.8 69°F1012 hPa

Wind History for Los Angeles Berth 161,
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hawthorne, Hawthorne Municipal Airport, CA9 mi28 minN 09.00 miFair66°F61°F84%1012.5 hPa
Los Angeles, Los Angeles International Airport, CA9 mi28 minENE 410.00 miFair66°F61°F84%1012.4 hPa
Long Beach, Long Beach Airport, CA14 mi28 minN 08.00 miPartly Cloudy66°F63°F90%1012.5 hPa
Santa Monica, Santa Monica Municipal Airport, CA15 mi30 minN 09.00 miFair63°F59°F87%1012.6 hPa
Los Angeles / USC Campus Downtown, CA16 mi34 minN 09.00 miFair66°F57°F73%1012.1 hPa
Los Alamitos Army Airfield, CA19 mi83 minN 03.00 miFog/Mist65°F63°F96%1012.8 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi28 minE 36.00 miFog/Mist68°F64°F90%1012.1 hPa

Wind History from TOA (wind in knots)
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Last 24hr--------------------CalmCalmCalm444NW6NW12W13NW9NW10W7W10W6
1 day ago--------------------CalmCalmW3NW4CalmNW6NW12NW14NW12NW9NW3NW5NW3W6
2 days ago--------------------SW3CalmCalmCalmCalmNW8NW9NW14W15NW15NW10W13W16W17
G22

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Thu -- 03:23 AM PDT     0.81 feet Low Tide
Thu -- 06:49 AM PDT     Moonrise
Thu -- 07:02 AM PDT     Sunrise
Thu -- 09:37 AM PDT     5.68 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 04:03 PM PDT     0.18 feet Low Tide
Thu -- 06:14 PM PDT     Sunset
Thu -- 06:37 PM PDT     Moonset
Thu -- 10:10 PM PDT     4.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.42.31.40.90.91.62.63.84.95.65.65.142.71.40.50.20.51.32.43.54.34.74.5

Tide / Current Tables for El Segundo, Santa Monica Bay, California
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El Segundo
Click for Map
Thu -- 03:29 AM PDT     0.78 feet Low Tide
Thu -- 06:49 AM PDT     Moonrise
Thu -- 07:02 AM PDT     Sunrise
Thu -- 09:42 AM PDT     5.68 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 04:09 PM PDT     0.17 feet Low Tide
Thu -- 06:14 PM PDT     Sunset
Thu -- 06:37 PM PDT     Moonset
Thu -- 10:15 PM PDT     4.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.52.41.40.80.91.42.53.74.85.55.75.24.12.81.50.60.20.41.22.33.44.34.74.6

Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Los Angeles/Oxnard, CA (5,6,7,8)
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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.