Monday, May29, 2017 L-36.com


Marine Weather and Tides
Channel Islands 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 5:45AMSunset 8:03PM Monday May 29, 2017 10:13 AM PDT (17:13 UTC) Moonrise 9:57AMMoonset 12:00AM Illumination 18% Phase: Waxing Crescent; Moon at 4 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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PZZ650 East Santa Barbara Channel From Pt. Conception To Pt. Mugu Ca Including Santa Cruz Island- 811 Am Pdt Mon May 29 2017
Today..Winds variable 10 kt or less...becoming W 10 to 15 kt with gusts to 20 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 6 seconds. Patchy fog in the morning.
Tonight..W winds 10 to 15 kt with gusts to 20 kt in the evening...becoming S 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 7 seconds. Patchy fog after midnight.
Tue..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds. Patchy fog in the morning.
Tue night..W winds 10 to 15 kt...becoming S 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds.
Wed..Winds variable 10 kt or less...becoming W 10 to 20 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 4 ft at 8 seconds.
Wed night..Western portion...nw winds 15 to 20 kt. Eastern portion...sw winds 10 to 15 kt becoming variable 10 kt or less after midnight. Wind waves 1 to 3 ft. W swell 3 to 4 ft at 7 seconds.
Thu..W winds 15 to 20 kt with gusts to 25 kt. Combined seas 2 to 4 ft.
Fri..W winds 10 to 20 kt. Wind waves 1 to 3 ft. W swell 2 to 4 ft.
PZZ600 811 Am 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 15z...or 8 am pdt...a 1022 mb high was centered 500 nm W of point conception and a 1004 mb low was near las vegas.

7 Day Forecast for Marine Location Near Channel Islands Beach, CA
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location: 34.15, -119.26     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 291145
afdlox
area forecast discussion
national weather service los angeles oxnard ca
445 am pdt Mon may 29 2017

Aviation discussion updated...

Synopsis
A weak upper level ridge will breakdown and give way to an upper
level trough across the region early this week and persisting
over much of california through most of the week. Expect more
widespread low clouds and fog with a few showers possible Monday
and Wednesday in the mountains with patchy drizzle for a few
valley and foothill areas by mid week.

Short term (tdy-wed)
synoptically, the weak upper ridge that was over much of
california and nevada will begin to push east ahead of an
approaching deep upper trough associated with a 542 dm low that
will remain well north off the pac NW coastal waters. There will
be a couple weak disturbances within the upper flow that will
bring a chance of showers to the sba vtu county mountains late
this afternoon and across the northern slopes of the sba vtu
county mountains on Wednesday with most the precip remaining well
to the north and east. Expect high temps to trend a bit lower for
most areas today and Tuesday. Then more significant cooling on
Wednesday when high temps will be a few degrees cooler than normal
for this time of year.

For this morning, low clouds have filled in nicely across the
central coast and santa ynez valley. Low clouds have also started
to fill in across the la and ventura county coastal areas and into
the san gabriel valley. Some high clouds were also moving through
the region as a very weak frontal boundary will bring some high
clouds through the forecast area this morning. With the marine
layer now rising to around 1400 ft, expect low clouds to make it
into the san fernando valley and ventura valleys as well before
sunrise. Latest amdar sounding indicated the marine layer around
1000 ft deep this morning around lax. As a weak catalina eddy
gets going this morning, expect the marine layer to deepen to
around 1400 ft this morning. With a relatively strong inversion
in place, smokey conditions are likely to continue over the
mandeville fire region today. Smoke will have a tough time mixing
out until later this afternoon. People suffering from respiratory
conditions should stay indoors until the smoke diminishes and
mixes out late this afternoon. Low clouds could linger along a few
coastal areas into early this afternoon, thanks in part to the
stronger inversion.

The main issue for today will be the potential for a few elevated
thunderstorms developing across the ventura santa barbara county
mtns later this afternoon. There is enough instability with
limited mid level moisture to justify a slight chance for showers
or thunderstorms. If storms do initiate, the main impact would be
dry lightning, as well as strong downdraft winds when storms
collapse. The san gabriel mountains should see some partly cloudy
skies as there is less in the way of instability.

Low clouds are expected to redevelop and push inland across coast
and valleys tonight into Tuesday morning. With little change
synoptically, expat for slightly stronger onshore flow, expect a
degree or two of cooling across coastal areas, with little change
inland. An upper disturbance will move through the upper trough on
Wednesday bringing a more significant deep marine layer. Some
patchy drizzle has been added for the san gabriel foothills. There
will be just enough lift with this trough that some showers will
be possible across the northern slope of the sba vtu county
mountains. Took out the chance for thunderstorms as the soundings
looked quite anemic in respect to convection potential for
Wednesday. High temps will bottom out on Wednesday with warmest
valleys reaching the mid to upper 70s with a few locations
reaching 80 degrees. Otherwise most areas will be the mid 60s to
lower 80s across the antelope valley.

Long term (thu-sun)
both the GFS and ECMWF models are in fairly good agreement with
large scale features through next weekend. After the trough axis
moves through the region on Wednesday, broad NW flow aloft will
occur on Thursday then by Friday a weak upper ridge will form over
southern california briefly. Expect a modest warming trend
thu Fri across the entire region as heights and thickness lvls
rise. Onshore flow will weak late this week, but there should
continue to be night through morning low clouds. A weak upper low
will build in from the SW over the weekend which will help to
increase low clouds and begin another modest cooling trend. Models
seem to have a tough time dealing with systems coming up from the
sw. Will continue to go with cooler solution for the weekend.

Aviation 29 12z...

at 09z at klax... The inversion was based near 1100 feet. The top
of the inversion was near 4100 feet with a temperature of about
21 degrees celsius.

Overall... Moderate confidence in the current tafs. Lifr ifr
conditions at most coastal locations will clear by 20z. There is
a forty percent chance of lifr ifr conditions at kbur and kvny
through 18z and a thirty percent chance at kprb and ksba through
17z. Lifr ifr conditions will likely develop at coastal and
adjacent valley locations after 30 08z. Otherwise and elsewhere
vfr conditions will prevail.

Klax... Moderate confidence in the current taf. Lifr ifr
conditions will clear by 20z then return again around 30 09z.

OtherwiseVFR conditions will prevail. No east winds above 7 knots
are expected.

Kbur... Moderate confidence the current taf. There is a forty
percent chance of lifr ifr conditions through 18z. OtherwiseVFR
conditions will prevail.

Marine 29 200 am
small craft advisory (sca) conditions continue across the outer
waters and in the nearshore waters of the central coast into at
least Wednesday. There will be periods during overnight and early
morning hours when winds dip below SCA levels.

The stronger winds will spill into the western half of the santa
barbara channel each evening but not far enough to warrant a sca
for the entire channel.

The winds peak Monday and Tuesday and there is a thirty percent
chance that gale conditions will form beyond 30 nm of the central
coast.

The elevated winds will create a short period chop over all
waters including the santa barbara channel and santa monica basin
in the inner waters.

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 (wed-sun)
no significant hazards expected.

Public... Kaplan
aviation... Kj
marine... Kj
synopsis... Kaplan
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46217 - Anacapa Passage, CA (111) 9 mi44 min 59°F3 ft
NTBC1 - Santa Barbara, CA - 9411340 29 mi44 min SE 7 G 8 56°F 1013.7 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 30 mi34 min SSE 5.8 G 7.8 58°F 63°F1013.6 hPa56°F
46251 31 mi53 min 60°F4 ft
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 32 mi34 min NNE 3.9 G 5.8 56°F 57°F1014.3 hPa54°F
46221 - Santa Monica Bay, CA (028) 39 mi44 min 62°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 41 mi44 min SW 6 G 6 59°F 64°F1014 hPa

Wind History for Santa Barbara, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oxnard, Oxnard Airport, CA5 mi83 minWNW 38.00 miOvercast59°F55°F87%1013.6 hPa
Point Mugu, Naval Air Warfare Center, CA8 mi78 minN 010.00 miOvercast60°F57°F90%1014.1 hPa
Camarillo, Camarillo Airport, CA10 mi79 minN 09.00 miOvercast59°F54°F83%1014.5 hPa

Wind History from OXR (wind in knots)
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Last 24hrW9W14W12W13W13W10W15W12W12W8W8W8W8W63N4W3W9NW4NW3CalmCalmW3W3
1 day agoW9SW11W11W11
G21
W13W15W16W14W14W8W8W5W4W4CalmNE3NE3CalmNE4NE3CalmCalmW5SW7
2 days agoSW5S8W11
G18
W11W7W9W9W10W10W9W8W8W7W6CalmCalmCalmNE3NE3E3N6NE3CalmW6

Tide / Current Tables for Port Hueneme, California
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Port Hueneme
Click for Map
Mon -- 12:05 AM PDT     5.87 feet High Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 07:29 AM PDT     -1.03 feet Low Tide
Mon -- 09:57 AM PDT     Moonrise
Mon -- 02:18 PM PDT     3.91 feet High Tide
Mon -- 07:08 PM PDT     2.38 feet Low Tide
Mon -- 08:01 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.64.83.62.10.7-0.4-1-1-0.40.61.72.83.53.93.83.532.62.42.533.74.4

Tide / Current Tables for Ventura, California
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Ventura
Click for Map
Mon -- 12:04 AM PDT     5.87 feet High Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 07:32 AM PDT     -1.03 feet Low Tide
Mon -- 09:57 AM PDT     Moonrise
Mon -- 02:17 PM PDT     3.91 feet High Tide
Mon -- 07:11 PM PDT     2.38 feet Low Tide
Mon -- 08:02 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.64.83.62.20.8-0.3-0.9-1-0.40.61.72.83.53.93.83.532.62.42.533.74.4

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 (13,3,4,5)
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Ground Weather Radar Station Los Angeles, 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.