Sunday, August18, 2019 L-36.com


Marine Weather and Tides
Palos Verdes Estates, 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 6:15AMSunset 7:39PM Saturday August 17, 2019 11:56 PM PDT (06:56 UTC) Moonrise 9:13PMMoonset 8:06AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
    EDIT      (on/off)   Help
PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 820 Pm Pdt Sat Aug 17 2019
Tonight..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 2 ft at 8 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 8 seconds. 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 to 3 ft at 7 seconds. Patchy fog after midnight.
Mon..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 6 seconds. Patchy fog in the morning.
Mon night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 2 to 3 ft at 6 seconds. 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 at 6 seconds. Patchy fog in the morning.
Tue night..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 3 to 4 ft at 7 seconds.
Wed..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.
Thu..SW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft. Patchy fog.
PZZ600 820 Pm Pdt Sat Aug 17 2019
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 1028 mb surface high was about 1100 nm west of point conception and a 1000 mb thermal low was located near las vegas.


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


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 180422
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
922 pm pdt Sat aug 17 2019

Synopsis 17 805 pm.

Near normal temperatures Sunday will gradually warm into midweek
as high pressure builds over the area. Overnight and morning low
clouds and fog will reoccur in coastal and adjacent valley areas
through Monday. Coverage of the overnight to morning clouds will
decrease Monday night into Thursday.

Short term (tnt-tue) 17 921 pm.

Southwest flow aloft continues across the region as the area is
sandwiched between a weak upper-level trough of low pressure over
northern california and an upper-level ridge of high pressure over
south texas. The trough's influence will continue to bring
stronger onshore flow and a deeper marine layer through Sunday.

The latest amdar soundings from klax indicate a marine layer depth
near 1500 feet deep. This agrees well with the latest NAM bufr
time height sections. If NAM bufr time height sections play out,
the marine layer should deepen back to between 2000 and 2500 feet
deep on Sunday morning. A cooler weather pattern will linger into
Sunday with low clouds and fog pushing well into the valley areas.

High pressure will build back in early next week and bring a
warming trend across the area with weakening offshore flow and a
thinner marine layer.

An update was issued previously and no further updates are
planned.

***from previous discussion***
a large upper level high over the southern plains will start to
slowly expand W and into SRN ca Sun night thru tue, with h5
heights expected to increase to 590-591 dm for Mon afternoon and
592-594 dm for Tue afternoon. A dry SW flow aloft will prevail for
the most part thru the period.

The marine inversion is expected to shrink to about 1500-1800 ft
or so Sun night into Mon morning, and probably down to 1000-1500
ft for Mon night into Tue morning. Plenty of night and morning low
clouds and fog will affect the coastal areas into portions of the
adjacent vlys thru mon, then be confined mainly to the central
coast, santa ynez vly and the l.A. County coast Mon night into tue
morning. Low clouds and fog will likely affect the salinas river
vly as well for the late night and morning hours tonight thru tue
morning. Otherwise, mostly clear skies will continue across swrn
ca thru Tue afternoon.

The onshore flow will slowly decrease thru the period, with the lax-
dag forecast gradient (nam) expected to be about +7.3 mb mon
afternoon and +6.3 mb Tue afternoon. Some gusty s-w afternoon and
evening winds will continue for the foothills, mtns and deserts
especially thru Mon afternoon. Some gusty NW winds are also
forecast for the central coast during the period.

Temps are expected to warm slightly to about 2-7 deg below normal
for mon. On tue, temps will continue to warm up, with highs
ranging from slightly below normal along the coast to 2-8 deg
above normal inland. The warmest vlys and lower mtns should reach
the 80s to low 90s on sun, mid 80s to lower 90s mon, and 90s to
around 100 on tue.

Long term (wed-sat) 17 212 pm.

It looks like the upper ridging will split Wed and Thu with one
upper level high centered over the desert SW to four-corners region
and another upper level high centered over the E pac off the ca
coast. Between these upper level highs, weak upper level troffiness
will move into swrn ca, altho h5 heights will still be rather high
at around 588-591 dm. Weak upper level troffiness will linger over
the forecast area Fri before h5 heights increase again into Sat as
upper level ridging starts to move back in.

The marine inversion should lower to well below 1000 ft deep by
early Wed before deepening again Fri and Sat to above 1000 ft.

Marine layer night and morning clouds and fog should be confined
to just the central coast Tue night into Wed morning, with all the
low clouds remaining off the coast Wed night and Thu morning. The
nightly low clouds should then spread back into the coast and
some adjacent vlys from Thu night into Sat morning. Otherwise, a
dry air mass will keep skies mostly clear across the region thru
the extended period.

Temps are forecast to become quite hot again across the region wed
and thu, with highs about 4-12 deg above normal away from the
immediate coast. Only slight cooling is expected Fri and Sat as
temps remain a few degrees above normal away from the coastal plain.

The hottest temps during the extended period will be Wed and thu
with highs reaching the upper 90s to around 104 in the vlys and
lower mtns, and 103 to 106 in the antelope vly. These forecast high
temps may eventually prompt the issuance of heat advisories for some
of these areas.

Both the ec and GFS forecast the development of a tropical cyclone
off the southern mexico coast probably as early as tue, then the
models track this system NW to a position off the SRN baja coast by
fri or sat. This system has a good chance of becoming the 9th
named tropical cyclone for the eastern pac this season which would
be ivo. The moisture and swell from this system could affect swrn
ca during the last week in august.

Aviation 18 0022z.

At 23z, the marine layer depth was around 1400 feet deep at klax.

The top of the inversion was around 3500 feet with a temperature
of 23 degrees celsius.

Moderate-to-high confidence in the current forecast. Higher
confidence in the forecast for inland terminals and flight
categories, less confidence in the forecast for coastal terminals
and timing.

Ifr to MVFR conditions will spread into coastal and valley
terminals through 13z. There is a chance of a later arrival at
terminals north of point conception and a chance of an earlier
arrival south of point conception. There is a chance of lifr
conditions at terminals north of point conception between 08z and
14z. Conditions should improve one category between 14z and 16z.

There is a chance of clearing up to two hours later than forecast.

Klax... MVFR conditions will spread into klax as soon as 02z or as
late as 05z. MVFR conditions should linger through the night.VFR
conditions could develop as soon as 16z or as late as 19z.

Kbur... MVFR conditions will spread into kbur as soon as 06z or as
late as 10z.VFR conditions could develop as soon as 16z or as
late as 19z.

Marine 17 824 pm.

For the outer waters, moderate to high confidence in current
forecast. High confidence in winds and seas remaining below small
craft advisory (sca) levels through early Sunday. There is a
20-30 percent chance of SCA level winds on Sunday afternoon and
night increasing to 50-70 percent chance on Monday and Monday
night. For Tuesday through Thursday, high confidence in SCA level
winds.

For the nearshore waters north of point sal, moderate to high
confidence in current forecast. High confidence in winds and seas
remaining below SCA levels through Sunday. On Monday, there is a
40 percent chance of SCA level winds during the afternoon and
evening hours. For Tuesday through Thursday, there is a 70 percent
chance of SCA level winds each afternoon and evening.

For the inner waters south of point conception, moderate to high
confidence in current forecast. Generally, high confidence in
winds and seas remaining below SCA through Thursday across a
majority of the area. The only exception will be the western half
of the santa barbara channel where there is a 60 percent chance
of SCA level winds on Tuesday and Wednesday during the late
afternoon and evening hours.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (tue-sat)
Hot temperatures could lead to heat advisories for some inland
areas next Wednesday and possibly Thursday. Otherwise, no
significant hazards are expected through the period.

Public... Hall sirard
aviation... Hall
marine... Hall rat
synopsis... Phillips
weather.Gov losangeles


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 10 mi63 min 62°F1012.3 hPa
PSXC1 10 mi57 min SE 2.9 G 4.1
PFXC1 11 mi57 min S 1.9 G 2.9
46221 - Santa Monica Bay, CA (028) 12 mi31 min 68°F2 ft
46256 13 mi57 min 62°F2 ft
PRJC1 13 mi57 min WSW 2.9 G 4.1
46222 - San Pedro, CA (092) 14 mi34 min 70°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 14 mi63 min SW 6 G 7 65°F 70°F1012.3 hPa
46253 20 mi57 min 71°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 34 mi37 min ESE 3.9 G 7.8 64°F 1012 hPa62°F

Wind History for Los Angeles Berth 161,
(wind in knots)    EDIT      (on/off)   Help
-12
PM
2
PM
3
PM
4
PM
-12
PM
6
PM
7
PM
-12
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
-12
PM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
-12
PM
11
AM
12
PM
Last
24hr
NW4
NW7
NW5
NW6
N6
N6
NW5
N3
S3
SE2
NE2
E4
SE6
NE1
SE3
SE3
S6
G9
SE5
G9
1 day
ago
SE1
S6
S5
S5
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA4 mi4.1 hrsW 710.00 miPartly Cloudy64°F60°F88%1010.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA9 mi2.1 hrsW 510.00 miMostly Cloudy66°F57°F75%1011.9 hPa
Los Angeles, Los Angeles International Airport, CA9 mi2.1 hrsW 710.00 miMostly Cloudy66°F59°F78%1011.7 hPa
Long Beach, Long Beach Airport, CA14 mi2.1 hrsSSW 510.00 miMostly Cloudy69°F59°F70%1011.7 hPa
Santa Monica, Santa Monica Municipal Airport, CA15 mi2.1 hrsSSW 510.00 miOvercast66°F62°F87%1011.7 hPa
Los Angeles / USC Campus Downtown, CA16 mi2.1 hrsN 010.00 miFair67°F60°F79%1011.5 hPa
Los Alamitos Army Airfield, CA19 mi2 hrsWSW 310.00 miFair63°F55°F76%1012.1 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi2.1 hrsVar 310.00 miFair67°F59°F76%1011.5 hPa

Link to 5 minute data for KTOA

Wind History from TOA (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hr--------------------SE6SE4E5E8E4SE5SE43W12W14W13W13
G18
W13W7
1 day ago--------------------CalmCalm4--34W8W12W13W15W11W15W12W12
2 days ago--------------------SW3SW3SW3CalmW6W9W12W13W14W16W18W17W13W13

Tide / Current Tables for King Harbor, Santa Monica Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for El Segundo, Santa Monica Bay, California
   EDIT      (on/off)   Help   One Week of Data
El Segundo
Click for Map
Sun -- 05:53 AM PDT     0.44 feet Low Tide
Sun -- 06:17 AM PDT     Sunrise
Sun -- 09:00 AM PDT     Moonset
Sun -- 12:15 PM PDT     4.30 feet High Tide
Sun -- 05:45 PM PDT     1.92 feet Low Tide
Sun -- 07:36 PM PDT     Sunset
Sun -- 09:41 PM PDT     Moonrise
Sun -- 11:42 PM PDT     4.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
54.43.42.31.30.60.40.71.42.43.344.34.23.73.12.521.92.22.83.54.34.7

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Los Angeles/Oxnard, CA (2,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Santa Ana Mtns, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.