Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
East Rancho Dominguez, 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 6:55AMSunset 5:10PM Tuesday January 16, 2018 5:20 AM PST (13:20 UTC) Moonrise 7:35AMMoonset 6:04PM Illumination 0% Phase: New Moon; 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- 321 Am Pst Tue Jan 16 2018
Today..NW winds around 10 kt, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 5 to 7 ft at 17 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Tonight..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 6 to 8 ft at 16 seconds. Patchy fog after midnight.
Wed..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft at 15 seconds. Patchy fog in the morning.
Wed night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 5 to 7 ft at 14 seconds, subsiding to 3 to 5 ft at 14 seconds after midnight. Patchy fog after midnight.
Thu..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 14 seconds. Patchy fog in the morning.
Thu night..W winds 10 to 15 kt. Wind waves 2 ft. W swell 3 to 5 ft at 18 seconds, building to 6 to 8 ft at 20 seconds after midnight. Slight chance of rain after midnight.
Fri..W to nw winds 15 to 25 kt with gusts to 30 kt. Combined seas 8 to 11 ft. Chance of rain.
Sat..W to nw winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 8 ft.
PZZ600 321 Am Pst Tue Jan 16 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 11z...or 3 am pst...a 1023 mb high was located 500 nm sw of point conception. A 1017 mb low was centered in arizona. A large, long period nw swell will affect the waters tonight through Wed night. An even larger nw swell may affect the waters Thu through Sat.

7 Day Forecast for Marine Location Near East Rancho Dominguez, CA
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location: 33.9, -118.21     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 161215
afdlox
area forecast discussion
national weather service los angeles oxnard ca
415 am pst Tue jan 16 2018

Synopsis
An approaching upper level trough from the northwest of the area
will increase the onshore flow for more clouds and cooler
temperatures today. A storm system will spread the possibility of
precipitation from the northwest Thursday afternoon and evening,
then spreading into all areas by early Friday. A few lingering
showers and low snow levels expected through early Saturday. Cool
and dry conditions expected through the remainder of the weekend.

Potential for periods of additional rain early next week.

Short term (tdy-thu)
latest goes-16 satellite imagery indicated plenty of high clouds
moving through the region this morning. Below the high clouds,
some patchy low clouds were occurring. However, with the
approaching upper trough to the north, the inversion was a bit
deeper and not much in the way of dense fog reports across coastal
areas. There will be some patchy dense fog showing up in some of
the coastal valley locations early this morning, most likely for
the santa ynez and ventura county valleys as well as the salinas
river valley through mid morning hours. Mostly cloudy skies will
become partly to mostly cloudy by this afternoon.

Synoptically, zonal aloft will persist across the region today
with only slightly stronger onshore flow expected. Therefore high
temps should be a degree or two cooler compared to yesterday with
more cooling expected across some interior areas such as slo and
sba counties and the local mountains. Highs will still remain a
few degrees above normal for this time of year. A shortwave ridge
will build over socal ahead of an approaching upper trough for
Wednesday. Weak offshore flow will set up Wednesday morning as
well which will bring 4 to 6 degrees of warming to the la ventura
coast and valleys, and a few degrees warmer just about everywhere
except for a couple degrees of cooling across the antelope valley
which is typical with this type of pattern. A few valley locations
should reach the lower 80s. Some weak winds also across the san
lucia mtns to the central coast are expected. Low clouds should
remain off the coast tonight into Wednesday with the continuation
of plenty of mid to high level clouds through Thursday.

For Thursday, the shortwave ridge will begin to breakdown as the
upper trough approaches southern california. Latest models have
slowed the approach of what will be a very weak system. But once
it arrives, it will push through quickly as 850 mb winds will be
out of the nw. Light rain will move in across the NW portion of
the central coast initially by late Thursday morning or afternoon,
then overspread to the south into la county by late Thursday
night or early Friday morning. Snow levels will be between 7000 -
8000 ft through Thursday night then drop to around 4,000 ft by
Friday mid morning. With the wind profile mainly out of the nw
direction, rain totals will be quite light. Have lowered the qpf
to less than a quarter inch for slo county and much lighter to
the south. High temps will be around 4 degrees cooler from
Wednesday for most areas, with a few degrees of warming across the
antelope valley.

Rainfall is expected to remain light across montecito Thu fri
with a tenth of an inch or less expected.

Long term (fri-mon)
both the GFS and ECMWF continue to be in decent agreement with
large scale features through Monday before going out of phase on
Tuesday. For Friday morning, a weak cold front will continue to
bring some light rain across the region. As the front moves
through, the snow level will drop from 7000 ft Thu evening to
4000 ft by Friday mid morning. Most the showers will be very
light. But the northerly winds will help to pile up clouds across
the northern slopes above the grapevine, which should cause snow
flurries to continue through much of Friday into Friday evening.

It will be cold enough to potentially cause some hazardous
driving conditions across the i-5 corridor above the grapevine.

Snow amounts should be 2-4 inches for areas above 5,000 ft with
this next system.

Temperatures will be plummeting on Friday with valleys and
interior areas lowering 10 to 20 degrees with coastal areas down 8
to 10 degrees from Thursday. Highs across the low-lands will be
in the upper 50s to lower 60s on Friday, with just a few degrees
of warming on Saturday. Sundowner winds are expected to develop
Friday afternoon through early Saturday morning across sba county
and across the la vtu county mtns and antelope valley as well. It
will remain quite cool on Sat with a few lingering showers across
the northern slopes of the ventura county mtns. Weak offshore flow
will set up briefly Sat evening into Sunday morning, with some
limited warming expected. It will continue to be quite cool
overall, but highs should be in the upper 60s for coast and
valleys with partly cloudy skies.

Both models are hinting at another system to move into the
northern portion of the forecast area Monday then spreading into
the entire forecast area. The GFS is much more bullish and keeps
the trough over the region longer, allowing precip to continue
through wed. It is too early to get a good handle on what this
system will actually going to do, but as we draw closer to the
weekend, we should start getting an idea of some preliminary
precip amounts to expect. People in the montecito area should
remain aware for the potential of more extended periods of rain.

Aviation 15 2340z.

At 2330z at klax, there was marine layer with a depth of nearly
600 ft. The top of the inversion was at 1000 feet with a
temperature of 18 degrees c.

The combination of weak onshore flow and a shallow marine layer
depth will bring a threat of ifr conditions to many of the
coastal TAF locations tonight but low confidence in occurrence
and timing due to presence of fairly thick higher level clouds.

There is a 20 percent chance of dense fog with lifr conditions
at klax, klgb, ksmo, koxr, kcma, ksmx, and ksbp later tonight
into early Tuesday morning.

Klax... Low confidence in the 00z TAF with arrival and timing of
ifr CIGS vsbys later tonight into Tuesday morning as there is a
chance of no low cigs. However, there is also a 20 percent chance
of lifr conditions late tonight into early Tuesday morning.

Kbur... Very high confidence in cavu taf.

Marine 15 800 pm.

For the outer waters, high confidence in current forecast. Winds
will most likely remain below small craft advisory (sca) levels
through Wed night, but could get close to SCA levels in some areas
during the afternoon and evening hours Tue and wed. A large long
period westerly swell will continue to affect the waters through
wed. SCA conditions for hazardous seas are expected through wed
night. After a very brief lull, another even larger NW swell will
build again Thu afternoon, increasing through at least fri, with
wave heights 18 to 20 ft possible. Additionally, winds could reach
sca levels Wed night through thu, and will likely reach sca
levels fri.

For the northern inner waters, high confidence in current forecast.

Sca conditions for hazardous seas will continue through wed
night. After slightly subsiding, seas will build to SCA levels
again thu, with SCA level winds as well fri.

For the waters south of point conception, winds will remain below
sca levels through thu. Seas may build to near or above 10 feet
across the western portions of the nearshore waters late tonight
through Tue night. Even larger seas are expected late in the week
and SCA levels winds are expected fri.

Lox watches warnings advisories
Ca... High surf advisory in effect until 6 am pst Thursday for
zones 34-35-40-41-87. (see laxcfwlox).

Pz... Small craft advisory for hazardous seas in effect until 3 am
pst Thursday for zones 645-670. (see laxmwwlox).

Small craft advisory in effect until 3 am pst Thursday for
zones 673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
possible winter weather issues for the i-5 near the grapevine
Friday night. Otherwise, no significant hazards expected.

Public... Kaplan
aviation... Gomberg
marine... Smith
synopsis... Kaplan
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSXC1 9 mi50 min NW 2.9 G 2.9
BAXC1 9 mi50 min NW 5.1 G 5.1
PXAC1 10 mi56 min NW 1.9 G 1.9
PFXC1 11 mi50 min N 2.9 G 2.9 57°F
PFDC1 12 mi50 min Calm G 1
PRJC1 12 mi50 min NNW 2.9 G 4.1
AGXC1 13 mi50 min WNW 2.9 G 2.9 57°F 1019.8 hPa
OHBC1 - 9410660 - Los Angeles, CA 13 mi50 min 62°F1020 hPa
46256 14 mi58 min 61°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 17 mi50 min ENE 2.9 G 5.1 56°F 61°F1019.8 hPa
46222 - San Pedro, CA (092) 20 mi50 min 61°F5 ft
46253 22 mi50 min 62°F3 ft
46221 - Santa Monica Bay, CA (028) 23 mi50 min 62°F5 ft
46262 44 mi50 min 61°F6 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 46 mi40 min NW 7.8 G 7.8 61°F1019.3 hPa

Wind History for Los Angeles Badger Avenue Bridge, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Long Beach, Long Beach Airport, CA6 mi27 minN 03.00 miFog/Mist53°F50°F89%1019.4 hPa
Hawthorne, Hawthorne Municipal Airport, CA7 mi27 minN 00.15 miSky Obscured56°F55°F100%1019.7 hPa
Los Angeles / USC Campus Downtown, CA9 mi33 minN 00.25 miFog53°F53°F100%1019.4 hPa
Los Angeles, Los Angeles International Airport, CA10 mi27 minN 00.06 miFog56°F55°F100%1019.7 hPa
Los Alamitos Army Airfield, CA11 mi22 minN 04.00 miFog/Mist50°F50°F100%1019.6 hPa
Fullerton, Fullerton Municipal Airport, CA12 mi27 minN 06.00 miFog/Mist52°F48°F89%1019 hPa
Santa Monica, Santa Monica Municipal Airport, CA16 mi29 minNNE 39.00 miFair53°F51°F93%1019.6 hPa
Burbank - Bob Hope Airport, CA22 mi27 minN 010.00 miFair51°F45°F80%1018.6 hPa
John Wayne-Orange County Airport, CA24 mi27 minN 00.25 miFog52°F52°F100%1019.6 hPa

Wind History from LGB (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmS4S4W6NW5W6NW5CalmCalmCalmW4NW3NW6E3E3CalmCalmNW3Calm
1 day agoW3W3W5NW3NW3CalmCalmS6S5S5S53CalmSE5CalmCalmCalmCalmSE3NE3CalmCalmCalmCalm
2 days agoNW4NW4CalmNW5N3N7N8N8N5NE7E9E4E5E4E8NE6N4NW5W3W4NW4NW4NW4NW4

Tide / Current Tables for Long Beach, Inner Harbor, California
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Long Beach
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Tue -- 02:10 AM PST     2.03 feet Low Tide
Tue -- 06:34 AM PST     Moonrise
Tue -- 06:57 AM PST     Sunrise
Tue -- 08:21 AM PST     5.73 feet High Tide
Tue -- 03:33 PM PST     -0.57 feet Low Tide
Tue -- 05:04 PM PST     Moonset
Tue -- 05:08 PM PST     Sunset
Tue -- 06:18 PM PST     New Moon
Tue -- 09:59 PM PST     3.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.72.322.22.73.54.55.35.75.653.92.51.20.1-0.5-0.5-00.91.92.83.53.73.5

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Tue -- 02:04 AM PST     2.11 feet Low Tide
Tue -- 06:34 AM PST     Moonrise
Tue -- 06:57 AM PST     Sunrise
Tue -- 08:16 AM PST     6.04 feet High Tide
Tue -- 03:26 PM PST     -0.71 feet Low Tide
Tue -- 05:04 PM PST     Moonset
Tue -- 05:08 PM PST     Sunset
Tue -- 06:18 PM PST     New Moon
Tue -- 09:52 PM PST     3.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.82.32.12.32.93.84.85.665.95.23.92.51-0.1-0.6-0.6012.13.13.73.93.7

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 (8,2,3,4)
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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.