Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Rolling Hills Estates, CA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:12AMSunset 7:30PM Saturday April 21, 2018 8:42 AM PDT (15:42 UTC) Moonrise 11:08AMMoonset 12:36AM Illumination 37% Phase: Waxing Crescent; Moon at 6 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- 820 Am Pdt Sat Apr 21 2018
Today..SE winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 3 to 5 ft at 9 seconds. Patchy dense fog, with vsby 1 nm or less.
Tonight..W winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and S 2 ft at 16 seconds. Patchy fog after midnight.
Sun..SE winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
Sun night..W winds 10 to 15 kt, becoming se 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 14 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.
Mon..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 14 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.
Mon night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 13 seconds and S 2 ft at 13 seconds. Patchy fog after midnight.
Tue..Winds variable 10 kt or less, becoming W 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
Wed..W winds 10 to 15 kt. Wind waves 2 ft. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
PZZ600 820 Am Pdt Sat Apr 21 2018
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 1032 mb surface high was centered 600 nm west of san francisco, while a 1016 mb thermal low was over southwest arizona. The high will push into oregon through Monday.

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 211323
afdlox
area forecast discussion
national weather service los angeles oxnard ca
623 am pdt Sat apr 21 2018

Synopsis 21 305 am.

High pressure aloft will gradually give way to low pressure aloft
and increasing onshore flow much of next week. The warmest
conditions are expected through Monday with gradual cooling later
in the week. Night to morning low clouds and fog will be common
along coastal areas during this time.

Short term (tdy-mon) 21 340 am.

Latest satellite imagery showed low clouds hanging tough across
portions of the central coast despite weak offshore flow (gusts to
25 mph in the hills) with generally clear skies south of point
conception. Low clouds were also rapidly filling in offshore of
monterey county and heading into our northern coastal waters.

There were some high clouds associated with a weak disturbance
about 300 miles south of point conception.

Ridging aloft is expected to peak today with h5 heights around
580 dm with a trough passing well to the north, lowering h5
heights slightly into Sunday with little change into Monday.

This will result with highs in the 60s to 70s coastal areas today
with widespread 80s further inland. Some increase in onshore flow
will provide a few degrees of cooling to coastal areas with a few
degrees of warming inland for Sunday. A weak disturbance passing
to the south may bring partly cloudy skies to many areas south of
point conception. Similar temperature trends are expected for
Monday with coastal areas now generally in the 60s to near 70s due
to increasing marine influence. Afternoon and evening onshore
breezes will be felt across many areas, especially Monday and
Tuesday. Night to morning low clouds will likely become more
common during this period across coastal areas, possibly pushing
into some lower valleys by Monday morning.

Long term (tue-fri) 21 403 am.

Above average confidence exists through Wednesday with near
average confidence thereafter.

Models have trend slower, stronger and further northwest with a
long-wave trough of low pressure for later next week. As a result
conditions are looking warmer than initially thought across
southwest california, especially for Wednesday and Thursday. The
forecast area will likely become sandwiched between the
approaching trough of low pressure to the west and an amplifying
ridge of high pressure over the great basin. This will set up
broad southwesterly flow aloft with somewhat lower h5 heights
through Thursday or Friday. Some moisture may become entrained
in this flow bringing periods of at least partly cloudy skies. In
fact, the GFS model even hints at the potential for a few
afternoon showers or even an isolated thunderstorm across the
vta sba mountains sometime Tuesday through Thursday. However,
confidence in this scenario is not high enough to include in the
forecast at this time. Temperatures will likely be on the decline
for much of the extended period, due to increasing onshore flow
and lower h5 heights with highs in the 70s for most areas away
from the coast by Thursday. These conditions will also likely lead
to low clouds expanding into many valleys by Wednesday and
possibly deepening further through Friday. At this point it looks
like there may be just enough cold air advection to dissipate low
clouds north of point conception by Friday morning, if not
earlier. Onshore winds will likely be on the increase through at
least Friday with advisory level winds possible for interior areas
as early as Wednesday evening.

Aviation 21 1322z.

At 13z, there was a surfaced based inversion at klax. The top of
the inversion was near 2200 feet with a temperature of 19 degrees
celsius.

Expect areas of stratus with ifr to lifr conds across the central
coast, the santa ynez valley and portions of the l.A. County coast
through mid morning, then conds are expected to becomeVFR. Cigs
could move into the vtu county coast for a couple of hours. Expect
areas of stratus on the central coast, the santa ynez valley and
the l.A. And vtu county coast tonight, with low MVFR to high ifr
conds expected.

Klax... Moderate confidence in the 12z taf. There is a 20% chance
that lifr to ifr conds will linger through 17z or 18z.

Kbur... High confidence in the 12z TAF withVFR conditions through
the period.

Marine 21 348 am.

Moderate to high confidence in SCA conds thru late tonight across
the northern two outer waters zones (pzz670 pzz673). Winds were
below SCA levels early this morning, but seas were right near
thresholds. Winds are expected to increase to SCA levels this
afternoon, then persist thru at least midnight, if not a bit later.

Seas will be close to SCA levels across the southern outer waters
zone (pzz676) today. Choppy short-period seas will continue thru
the day across the inner waters and the sba channel.

Otherwise, SCA conds are not expected thru wed. However, there is
a 20-30% chance of SCA level winds across the northern two outer
waters zones Sun afternoon evening. Seas will remain close to but
just under SCA thresholds across the outer waters Sun and Sun night.

Patchy dense fog may affect the northern outer and inner waters
at times through Sunday morning.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 am pdt Sunday for
zones 670-673. (see laxmwwlox).

Hazard potential outlook (mon-fri)
No significant hazards expected.

Public... Munroe
aviation... Db
marine... Db
synopsis... Munroe
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 0 mi42 min 57°F1018.3 hPa (+0.8)
AGXC1 1 mi54 min N 8 G 8 58°F 1018.3 hPa
PFDC1 2 mi42 min NNW 5.1 G 6
PFXC1 3 mi42 min N 6 G 7 60°F
PXAC1 3 mi48 min N 5.1 G 6
PSXC1 4 mi42 min N 6 G 8.9
BAXC1 4 mi54 min N 4.1 G 6
46256 4 mi42 min 56°F3 ft
PRJC1 5 mi42 min N 7 G 8
46222 - San Pedro, CA (092) 7 mi42 min 55°F3 ft
46253 11 mi42 min 56°F3 ft
46221 - Santa Monica Bay, CA (028) 21 mi42 min 56°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 23 mi42 min NNE 1.9 G 2.9 60°F 58°F1018.6 hPa (+0.9)
46262 39 mi42 min 57°F5 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 42 mi32 min NE 5.8 G 7.8 1018.2 hPa

Wind History for Angels Gate, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA6 mi54 minN 00.50 miFog/Mist54°F53°F100%1018.6 hPa
Long Beach, Long Beach Airport, CA10 mi49 minN 47.00 miFair60°F51°F72%1018.4 hPa
Los Alamitos Army Airfield, CA13 mi1.7 hrsN 010.00 miFair50°F48°F93%1018.2 hPa
Hawthorne, Hawthorne Municipal Airport, CA15 mi49 minN 07.00 miFair56°F54°F93%1018.5 hPa
Los Angeles, Los Angeles International Airport, CA17 mi49 minN 410.00 miPatches Fog59°F53°F81%1018.4 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi49 minN 010.00 miFair59°F50°F72%1018.1 hPa
Los Angeles / USC Campus Downtown, CA21 mi55 minN 010.00 miFair60°F51°F72%1018.4 hPa
John Wayne-Orange County Airport, CA21 mi49 minNNE 410.00 miFair59°F48°F69%1018.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA23 mi51 minNNE 310.00 miFair57°F48°F74%1018.5 hPa
Avalon Catalina Airport, CA23 mi51 minNNW 510.00 miFair66°F43°F43%1017.3 hPa

Wind History from TOA (wind in knots)
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Last 24hr533SW5SW5W14W13SW11W11W10W12W7--------------------CalmCalm
1 day ago3W7W7W11W14W13W13SW16
G24
W17SW11
G19
SW10
G17
SW11--------------------55
2 days agoSE10E9E8E4W8SW4W12W13W12W11
G16
W13
G18
W6--------------------W12SW3

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Sat -- 12:36 AM PDT     Moonset
Sat -- 01:14 AM PDT     5.05 feet High Tide
Sat -- 06:15 AM PDT     Sunrise
Sat -- 09:00 AM PDT     -0.18 feet Low Tide
Sat -- 11:07 AM PDT     Moonrise
Sat -- 04:16 PM PDT     3.36 feet High Tide
Sat -- 07:28 PM PDT     Sunset
Sat -- 08:23 PM PDT     2.70 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.854.94.43.62.61.50.60-0.200.51.322.73.23.33.33.12.92.72.733.4

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Sat -- 12:35 AM PDT     Moonset
Sat -- 02:11 AM PDT     4.29 feet High Tide
Sat -- 06:14 AM PDT     Sunrise
Sat -- 10:07 AM PDT     -0.11 feet Low Tide
Sat -- 11:06 AM PDT     Moonrise
Sat -- 05:12 PM PDT     2.76 feet High Tide
Sat -- 07:27 PM PDT     Sunset
Sat -- 09:27 PM PDT     1.62 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.444.34.23.83.12.21.40.60.1-0.100.411.72.22.62.82.72.31.91.71.71.9

Weather Map and Satellite Images
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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.
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Wind Forecast for Los Angeles/Oxnard, CA (11,2,3,4)
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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.