Wednesday, April26, 2017 L-36.com


Marine Weather and Tides
Rolling Hills Estates, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:06AMSunset 7:34PM Wednesday April 26, 2017 4:24 PM PDT (23:24 UTC) Moonrise 6:35AMMoonset 8:02PM Illumination 1% Phase: New Moon; Moon at 1 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- 212 Pm Pdt Wed Apr 26 2017
.small craft advisory in effect through late Friday night...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 7 to 9 ft dominant period 9 seconds.
Thu..NW winds 15 to 25 kt with local gusts to 30 kt. Strongest western portion. Combined seas 7 to 9 ft dominant period 9 seconds.
Thu night..Western portion...nw winds 20 to 25 kt. Elsewhere...nw winds 15 to 20 kt becoming 20 to 25 kt after midnight. Combined seas 9 to 12 ft dominant period 8 seconds.
Fri..Western portion...nw winds 20 to 30 kt. Elsewhere...nw winds 20 to 25 kt becoming 15 to 20 kt in the afternoon. Combined seas 7 to 10 ft dominant period 10 seconds.
Fri night..NW winds 15 to 25 kt with gusts to 30 kt...becoming ne 10 to 20 kt with gusts to 25 kt after midnight. Combined seas 7 to 9 ft dominant period 10 seconds.
Sat..N winds 15 to 20 kt...becoming ne 10 to 20 kt in the afternoon. Gusts to 25 kt. Wind waves 2 to 4 ft. W swell 4 to 6 ft at 9 seconds.
Sat night..NW winds 10 to 20 kt...becoming N 5 to 10 kt after midnight. Wind waves 1 to 3 ft. W swell 4 to 5 ft at 9 seconds.
Sun..NW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 3 ft.
Mon..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 3 ft.
PZZ600 212 Pm Pdt Wed Apr 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z...or 1 pm pdt...a 1028 mb high was located 600 nm W of point conception. A 994 mb low was centered in ar. Widespread gale force winds are expected across the outer water through the end of the week. Across the inner waters...small craft advisory conditions are expected through the end of the week...with local gale force gusts possible across western portions of the nearshore waters at times through Fri.

7 Day Forecast for Marine Location Near Rolling Hills Estates, CA
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location: 33.72, -118.27     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 262106
afdlox
area forecast discussion
national weather service los angeles/oxnard ca
206 pm pdt Wed apr 26 2017

Synopsis
There may be possible precipitation in the ventura mountains
early Thursday. A high to the west... And a low to our east will
bring fair skies... Gusty winds and above normal temperatures into
Sunday. The high will move in by Monday for fair skies... With an
onshore flow to start a cooling trend at the coast.

Short term (tdy-sat)
latest satellite imagery showed mid to high level clouds
approaching the central coast ahead of a shortwave trough moving
southeast through central california. Patchy marine stratus
is hanging on off the central coastal. Otherwise sunny skies
except for partly to mostly cloudy skies developing with mountain
wave activity, most prominent to the lee of the tehachapi mtns
across the los angeles mountains into the antelope valley.

Temperatures so far today are matching up well with forecasted
highs to the west of the mountains. However, some areas north of
point conception and across the interior will likely fall several
degrees short of forecasted highs due to increasing cloud
coverage.

A shortwave trough will pass to the east of the forecast area
this evening, bringing increasing cloudiness to interior areas with
a slight chance of upslope showers for north facing slopes. It
will also reinforce northerly winds to southwest california
beginning this evening. Strong upper level support with feature
has prompted the issuance of a high wind warning across the los
angeles and ventura county mountains, for this afternoon through
Friday morning. However, there may be a brief lull in warning
level winds across the area sometime Thursday afternoon. Advisory
level northwest to north winds will become more widespread this
evening with the san gabriel valley being the latest addition to
wind advisories. A second shortwave trough is expected to pass to
the east again Thursday evening, supporting continued unseasonably
gusty northerly winds to many of the same areas experiencing the
gusty winds this evening through Thursday morning. Winds will
probably remain just below advisory levels for coastal areas of
the central coast Thursday afternoon and evening.

Friday into Saturday a long wave trough deepens across the four
corners region as it gradually shifts east. Surface high pressure
building in behind the strengthening trough will support a
transition to more northerly winds Friday and offshore by
Saturday. Winds are expected to weaken during this time but will
still likely be advisory levels for wind prone areas. As a result,
current wind advisories across the mountains and some valley
areas will likely need to either be extended through early
Saturday or reissued.

Interior areas will see little change in temperatures through
Friday with some warming possible Saturday as a ridge aloft
nudges closer to california with mostly sunny skies. Areas west
of the mountains, especially south of santa barbara will
considerable warming and drying through Saturday due to the
downsloping winds off the mountains. High temperatures projected
to be around 10 degrees warmer then todays highs with low to mid
90s possible across the warmest valleys. It will be among the
warmest temperatures so far this year with low end heat impacts
possible, especially for at risk populations such as the young,
elderly, and unprepared.

Long term (sun-wed)
good confidence in the forecast through Monday with moderate
confidence Tuesday and Wednesday. Weakly offshore or near neutral
surface pressure gradients Sunday morning are expected to shift
moderately onshore by the afternoon providing notable relief from
the heat for coastal areas. However, downsloping winds combined
with a ridge of high pressure aloft will provide some warming
across interior areas. Onshore flow will likely continue into
Monday with continued cooling across coastal areas into the
valleys and little change across interior areas. Low clouds and
patchy fog are possible as early as Monday morning, but more
likely overnight Monday into Tuesday morning. Model guidance is
hinting an offshore push providing near neutral to offshore
surface gradients by Wednesday. This may hamper cooling currently
advertised as well as limit marine layer influence to the west of
the mountains.

Aviation 26/1800z.

At 1718z, there was no marine layer at klax.

There was good confidence in the 18z tafs. The biggest concern
remains the strong gusty north to northwest winds across the
region. Hazards for today include low level wind shear, turbulence
resulting from uddfs, and reduced visibility in blowing dust and
sand.VFR conditions will continue predominant at the TAF sites
other than the possibility of patchy fog late on the central
coast and in the salinas valley, and the possibility of blowing
dust in the antelope valley this afternoon.

Klax... High confidence in the 18z TAF in that conds should beVFR
through the pd. Winds will be more tricky. There is a 30% chance
of northerly cross winds over 20 kt from 01z to 09z this evening.

Bur... High confidence in the 18z TAF in that conds should beVFR
through the pd. There is a 50 percent chance of wind gusts over
25 kt from the northwest to northeast from mid afternoon through
early evening.

Marine 26/200 pm
for the outer waters, high confidence gale force winds through
Friday night, with SCA conditions, at least,likely through
the weekend.

For the inner waters, moderate to high confidence in SCA conds
through Fri night. There will likely be some gale force gusts,
especially across western sections. There is a 20-30% chance that
gale warning may be needed, especially late Thu through fri
evening.

Due to strong winds throughout the waters, seas will be very
choppy in all areas this week, making for hazardous boating
conditions through the week.

Lox watches/warnings/advisories
Ca... Wind advisory in effect until 9 pm pdt this evening for zones
34-35. (see laxnpwlox).

Wind advisory in effect until 9 am pdt Friday for zones
39-46-52-59-547. (see laxnpwlox).

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

Wind advisory in effect until 9 am pdt Thursday for zone 41. (see laxnpwlox).

High wind warning in effect until 9 am pdt Friday for zones
53-54. (see laxnpwlox).

Wind advisory in effect until 3 pm pdt Friday for zone 88. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 am pdt Saturday for
zones 645-650-655. (see laxmwwlox).

Gale warning in effect until 3 am pdt Saturday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
gusty northeast winds are possible across portions of los angeles
and ventura counties Saturday, with well above normal
temperatures expected.

Public... Munroe
aviation... Sweet
marine... Sweet
synopsis... Stu
weather.Gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 0 mi54 min 60°F1010.6 hPa
AGXC1 1 mi54 min SW 9.9 G 15 65°F 1010.7 hPa
PFDC1 2 mi54 min SSW 4.1 G 5.1
PFXC1 3 mi54 min SW 8.9 G 11 69°F
PXAC1 3 mi54 min W 4.1 G 5.1
PSXC1 4 mi54 min SE 5.1 G 7
BAXC1 4 mi54 min Calm G 1
46256 4 mi62 min 62°F5 ft
PRJC1 5 mi54 min SW 12 G 16
46222 - San Pedro, CA (092) 7 mi65 min 60°F5 ft
46253 11 mi54 min 62°F5 ft
46221 - Santa Monica Bay, CA (028) 21 mi54 min 58°F6 ft
ICAC1 - 9410840 - Santa Monica Pier 23 mi54 min S 4.1 G 6 62°F 61°F1010.7 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 42 mi44 min W 9.7 G 12 62°F 62°F1010.9 hPa56°F

Wind History for Angels Gate, CA
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W20
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SW10
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SW11
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N2
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SW8

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA6 mi97 minno data10.00 miMostly Cloudy72°F51°F50%1010.8 hPa
Long Beach, Long Beach Airport, CA10 mi31 minWNW 1010.00 miFair76°F50°F40%1010.5 hPa
Los Alamitos U. S. Army Airfield, CA13 mi86 minS 1210.00 miMostly Cloudy69°F53°F58%1011.8 hPa
Hawthorne, Hawthorne Municipal Airport, CA15 mi31 minW 1410.00 miFair70°F54°F57%1010.4 hPa
Los Angeles, Los Angeles International Airport, CA17 mi31 minWSW 1610.00 miPartly Cloudy70°F55°F59%1010.1 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi31 minS 510.00 miFair72°F53°F52%1010.3 hPa
Los Angeles / USC Campus Downtown, CA21 mi37 minN 010.00 miFair74°F53°F48%1009.9 hPa
Santa Ana, John Wayne Airport-Orange County Airport, CA21 mi31 minSSW 910.00 miMostly Cloudy70°F54°F57%1011 hPa
Santa Monica, Santa Monica Municipal Airport, CA23 mi33 minSSW 710.00 miFair68°F54°F61%1010.1 hPa
Avalon Catalina Airport, CA23 mi33 minW 1110.00 miFair72°F51°F48%1010.4 hPa

Wind History from TOA (wind in knots)
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Last 24hr------------------------------------NW13NW8NW11W14----
1 day agoW12NW12W6W8----------------------W10W12W14
G18
--W14W15
G21
W20
G26
W17
G25
W23
G28
2 days agoW16W11NW9NW4--------------------Calm456CalmNW6--NW15W15W14

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Wed -- 03:57 AM PDT     -0.84 feet Low Tide
Wed -- 05:18 AM PDT     New Moon
Wed -- 06:09 AM PDT     Sunrise
Wed -- 06:34 AM PDT     Moonrise
Wed -- 10:09 AM PDT     4.76 feet High Tide
Wed -- 03:47 PM PDT     0.58 feet Low Tide
Wed -- 07:32 PM PDT     Sunset
Wed -- 08:02 PM PDT     Moonset
Wed -- 09:58 PM PDT     6.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.620.5-0.5-0.8-0.40.61.93.34.34.84.53.72.61.50.80.61.12.13.54.85.86.25.8

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Wed -- 05:07 AM PDT     -0.47 feet Low Tide
Wed -- 05:18 AM PDT     New Moon
Wed -- 06:08 AM PDT     Sunrise
Wed -- 06:34 AM PDT     Moonrise
Wed -- 11:07 AM PDT     3.96 feet High Tide
Wed -- 04:57 PM PDT     0.33 feet Low Tide
Wed -- 07:31 PM PDT     Sunset
Wed -- 08:01 PM PDT     Moonset
Wed -- 10:57 PM PDT     5.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.33.21.90.7-0.1-0.5-0.20.51.62.83.643.83.12.21.30.60.30.71.52.844.95.2

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 (19,4,5,8)
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Ground Weather Radar Station Santa Ana Mtns, CA
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weather_mapweather_map weather_map

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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.