Wednesday, August22, 2018 L-36.com


Marine Weather and Tides
Avalon, CA

Version 3.4
What's New / NOTES
7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:19AMSunset 7:33PM Tuesday August 21, 2018 10:51 PM PDT (05:51 UTC) Moonrise 4:34PMMoonset 2:09AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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- 818 Pm Pdt Tue Aug 21 2018
Tonight..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 11 seconds and S 2 ft at 12 seconds.
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 to 3 ft at 7 seconds and S 2 ft at 12 seconds.
Wed night..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 2 ft at 13 seconds.
Thu..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 to 3 ft at 6 seconds and S 2 ft at 13 seconds.
Thu night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 2 ft at 13 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 to 3 ft at 6 seconds and S 2 ft at 13 seconds.
Fri night..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 2 ft at 13 seconds.
Sat..W winds 15 to 20 kt. Combined seas 3 to 5 ft.
Sun..W winds 15 to 20 kt. Combined seas 3 to 5 ft.
PZZ600 818 Pm Pdt Tue Aug 21 2018
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 centered 900 nm west of eureka ca, while a 1006 mb thermal low was near las vegas.


7 Day Forecast for Marine Location Near Avalon, CA
   Hourly   EDIT   Help
location: 33.51, -118.64     debug


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 220330
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
830 pm pdt Tue aug 21 2018

Synopsis 21 411 pm.

Temperatures will be near seasonal normals and a persistent
marine layer and onshore flow pattern will remain in place into
the weekend. Temperatures will cool to below normal next week.

Short term (tue-fri) 21 829 pm.

Onshore flow and a deep marine layer remain in place this evening
beneath southwest flow aloft between a trough aloft entering the
northern great basin and a upper-level ridge centered over north
texas. A near persistent temperatures pattern will continue with
night through morning low clouds and fog remaining a staple of the
forecast. A few tweaks were made temperatures for Wednesday in the
latest update.

***from previous discussion***
the latest satellite shows an upper-level trough of low pressure
near the california-oregon-nevada border intersection, while an
upper-level ridge of high pressure is centered over north texas.

Stronger onshore flow and a deep marine layer due to the trough's
influence to the north has allowed marine layer induced lower
clouds and fog to hug the beaches of santa barbara and san luis
obispo counties. The marine layer will likely be staple of the
forecast the next couple of days.

Very minimal changes are expected over the next several days as
500 mb heights and 1000-500 mb thickness values do not change by
much throughout the remainder of the work week. A near persistence
forecast should be expected the next several days as the marine
layer and moderate onshore flow will remain in place in southwest
flow aloft. Some thinning of the marine layer will take place over
the coming days, probably thinning by about 500 feet each day as
the trough to the north pulls away.

Very few changes were made to the short term, really only to tweak
temperatures at a few locations and reduce marine layer coverage
through Friday.

Long term (sat-tue) 21 209 pm.

High pressure will expand westward into the weekend but not as
much as thought previously. Higher 500 mb heights lean toward
onshore flow being weaker through Saturday, likely making
it the warmest day of the week. Model solutions are starting to
fall in-line with the idea of troughing over the west coast early
next week. Both GFS and ECMWF solutions agree with the idea, but
the exact and more finer details are inconsistent. A cooling trend
was introduced for early next week with a continued marine
influence. Stronger onshore flow should be expected between
Sunday and next Tuesday, along with a deeper marine layer.

Aviation 22 0012z.

At 23z, the marine layer depth was around 1900 feet deep at klax.

The top of the inversion was near 3750 feet with a temperature of
25 degrees celsius.

Moderate confidence in the current forecast. Timing of arrival
could be off by up to 3 hours. Primarily MVFR conditions will
affect coastal and valley terminals through 14z. The best chance
of ifr conditions will be for terminals north of kntd. There is a
chance of lifr conditions at terminals north of point conception
between 08z and 16z. MVFR conditions should clear between 16z and
18z, possibly lingering later at coastal terminals.

Klax... MVFR conditions will spread into klax between 03z and 08z.

MVFR conditions will linger through at least 17z, or as late as
19z.

Kbur... There is a 80 percent chance of MVFR conditions developing
as soon as 08z, or as late as 13z.VFR conditions should develop
between 16z and 18z.

Marine 21 818 pm.

For the outer waters, there will be a 10-20% chance for SCA level
gusts each late afternoon and evening for areas between point
conception to NW of san nicolas island. There will be a 50% chance
of small craft advisories (sca) Wednesday evening between point
conception to NW of san nicolas island. More widespread sca
conditions are expected Thursday through Sunday.

For the inner waters, conditions are expected to remain below
small craft advisory levels through tonight, but with a 30 percent
chance of SCA winds Thursday, and increasing chances Friday
through the weekend.

Patchy fog, possibly dense at times, will continue to form during
the late night and morning hours, especially north of point
conception through late in the week.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (fri-tue)
Gusty sundowner winds and elevated fire weather conditions are
possible for early next week.

Public... Hall
aviation... Hall
marine... Smith
synopsis... Kj
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
46222 - San Pedro, CA (092) 19 mi81 min 74°F2 ft
46262 23 mi81 min 71°F3 ft
OHBC1 - 9410660 - Los Angeles, CA 24 mi39 min 69°F1015.1 hPa
46221 - Santa Monica Bay, CA (028) 24 mi81 min 74°F3 ft
AGXC1 25 mi33 min WSW 8 G 8.9 70°F 1015.2 hPa
46253 25 mi81 min 74°F3 ft
PFDC1 26 mi33 min SSW 2.9 G 4.1
PXAC1 27 mi33 min N 1.9 G 1.9
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 27 mi31 min WSW 9.7 G 12 68°F 71°F1014.8 hPa68°F
46256 27 mi81 min 72°F2 ft
PSXC1 28 mi33 min NW 1 G 2.9
BAXC1 28 mi33 min W 1 G 1.9
PFXC1 28 mi33 min SW 4.1 G 4.1 71°F
PRJC1 29 mi33 min WSW 8.9 G 9.9
ICAC1 - 9410840 - Santa Monica Pier 35 mi39 min WSW 7 G 8 70°F 74°F1015.2 hPa

Wind History for Angels Gate, CA
(wind in knots)    EDIT      (on/off)   Help
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
9
PM
Last
24hr
SW5
W5
E2
NE3
E8
E10
E8
E7
E6
NE4
E6
SE4
NE3
S8
S8
SW8
SW6
G9
SW9
SW10
G14
SW15
SW14
G17
SW15
SW11
G14
W13
1 day
ago
W6
SW4
SW5
SW4
SW4
SW3
W3
NE2
E3
SE7
S6
S4
NE3
S3
SW4
SW7
SW8
SW9
SW6
SW7
SW9
SW7
SW7
SW7
2 days
ago
SW3
SW2
W2
--
S2
S4
SW9
SW12
SW13
G16
SW13
G18
SW15
SW12
SW11
SW11
SW10
SW7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Avalon Catalina Airport, CA14 mi60 minSW 61.25 miFog/Mist62°F62°F100%1014.7 hPa

Wind History from AVX (wind in knots)
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
9
PM
10
PM
Last 24hr--SE5N3CalmE3SE5E3CalmW4E5CalmW6E74W8W55W6W8SW12SW12SW8SW8SW6
1 day agoCalmCalmS3CalmSW3CalmN3W3Calm--------SW7W84W7W7SW4W4SW6SW5S4S5
2 days agoSW5CalmSW4SW3SW5CalmS3S4CalmE5E3345W7SW8W9SW9SW6SW5SW3CalmCalmCalm

Tide / Current Tables for Catalina Harbor, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Catalina Harbor
Click for Map
Wed -- 02:33 AM PDT     0.17 feet Low Tide
Wed -- 02:56 AM PDT     Moonset
Wed -- 06:21 AM PDT     Sunrise
Wed -- 09:08 AM PDT     3.83 feet High Tide
Wed -- 01:57 PM PDT     2.32 feet Low Tide
Wed -- 05:19 PM PDT     Moonrise
Wed -- 07:31 PM PDT     Sunset
Wed -- 07:58 PM PDT     5.38 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
1.60.80.20.20.61.42.33.13.63.83.73.32.92.52.32.53.13.84.65.25.45.14.43.4

Tide / Current Tables for Catalina Harbor, Santa Catalina Island, California
   EDIT      (on/off)   Help   One Week of Data
Catalina Harbor
Click for Map
Wed -- 02:35 AM PDT     0.16 feet Low Tide
Wed -- 02:56 AM PDT     Moonset
Wed -- 06:21 AM PDT     Sunrise
Wed -- 09:02 AM PDT     3.77 feet High Tide
Wed -- 01:57 PM PDT     2.31 feet Low Tide
Wed -- 05:19 PM PDT     Moonrise
Wed -- 07:31 PM PDT     Sunset
Wed -- 07:57 PM PDT     5.26 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
1.60.70.20.20.61.42.233.63.83.63.32.82.42.32.533.74.55.15.354.33.3

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 (1,6,7,8)
      (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.