Monday, June26, 2017 L-36.com


Marine Weather and Tides
Rancho Palos Verdes, 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 5:43AMSunset 8:09PM Monday June 26, 2017 3:35 PM PDT (22:35 UTC) Moonrise 8:40AMMoonset 10:35PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 208 Pm Pdt Mon Jun 26 2017
.small craft advisory in effect through late tonight...
Tonight..W winds 15 to 25 kt...becoming 10 to 15 kt after midnight. Strongest western portion. Combined seas 3 to 5 ft dominant period 6 seconds.
Tue..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 ft at 6 seconds and S 2 ft at 14 seconds.
Tue night..W winds 10 to 20 kt...becoming 5 to 10 kt after midnight. Wind waves 1 to 3 ft. Mixed swell W 2 ft at 6 seconds and S 2 ft at 13 seconds. Patchy fog after midnight.
Wed..SE winds 5 to 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 18 seconds. Patchy fog in the morning.
Wed night..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 ft at 6 seconds and sw 2 ft at 17 seconds. 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. Mixed swell W 2 ft at 7 seconds and sw 2 ft at 17 seconds. Patchy fog in the morning.
Thu night..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 ft and sw 2 ft. Patchy fog after midnight.
Fri..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft. Patchy fog.
Sat..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft. Patchy fog.
PZZ600 208 Pm Pdt Mon Jun 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 2 pm pdt...a 1032 mb high pressure center was located 1000 nm west of seattle washing while a 1006 mb thermal low was centered over southeast california. The high will push closer to the coast through Wednesday but will weaken along the way while the thermal low persists.

7 Day Forecast for Marine Location Near Rancho Palos Verdes, CA
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location: 33.7, -118.31     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 262038
afdlox
area forecast discussion
national weather service los angeles oxnard ca
138 pm pdt Mon jun 26 2017

Synopsis
An upper level trough off the california coast will weaken high
pressure aloft starting this afternoon and bring a cooling trend
as onshore flow strengthens. One more day of very warm
temperatures expected inland before cooling down to more normal
highs for this time of year by midweek. Expect low clouds and fog
to redevelop after today and continue through the week.

Short term (tdy-thu)
temps were off to a fast start today and definitely warmed up
above what models were showing yesterday but so far at least we
haven't seen that west wind arrive to help really push the temps
up in the san fernando valley. Could still happen through mid to
late afternoon though. Otherwise, the forecast for the rest of the
week is virtually unchanged. Very minimal low cloud development
expected tonight south of pt conception but there should be some
along the central coast later on. Then increasing coverage Tuesday
night into Wed as a weak eddy develops and troughing along the
west coast helps increase onshore flow and deepen the marine lyr.

Temps will respond accordingly. Cooler Tuesday (but still above
normal) with a more typical afternoon sea breeze, then additional
cooling Wed bringing highs down to near normal or even slightly
below normal in some areas. Little change Thu with again clouds
pushing into the coastal valleys overnight.

Still a decent northwest gradients across the santa ynez range the
next couple night but minimal support aloft. So for the most part
winds should remain below advisory levels. The northwest flow and
warm air mass will help keep south coast temps in the 80s Tuesday
and possibly even near 90 in some isolated spots.

Long term (fri-mon)
a little ridge will pop up Friday to help push temps up a few
degrees in most areas but the warm up will be brief as weak
troughing returns for the weekend. Still a little uncertainty with
this though as models have sort of been bouncing around with the
weak trough ridge scenario. Probably not a huge difference either
way as temps should remain within a few degrees of normal through
early next week.

Aviation 26 1800z.

At 17z at klax... There was a 300 ft marine layer. The inversion
top was 2800 ft with a temperature of 31 degrees celsius.

High confidence inVFR conditions everywhere through 03z today,
with very hot conditions stronger than usual west winds. Kvny
likely to have rare west wind again today. 70 percent chance of
lifr ifr cig at ksmx tonight, 40 percent chance at ksbp kprb, 20
percent chance at klgb klax ksmo. Moderate confidence inVFR
conditions everywhere else through Tuesday.

Klax... High confidence inVFR conditions through 08z, with a 20
percent chance of ifr conditions mainly from 10-17z Tuesday. West
wind gusts between 20 and 30 kt likely this afternoon. No
significant east winds expected through Tuesday.

Kbur... High confidence inVFR conditions through at least
Tuesday. 40 percent chance for the same rare west wind today as
that occurred yesterday. If wind does not occur, temperatures will
top out around 100. If wind does occur, 110 is possible.

Marine 26 100 pm.

High confidence in small craft advisory (sca) conditions from the
central coast to san nicolas island through at least Thursday.

The strongest winds of the period will be today and tonight.

Moderate confidence in low end scy conditions over the santa
barbara channel and santa monica basin through tonight... With
similar but slightly weaker winds on Tuesday. The stronger winds
will generally be over the western portions of these areas, but
the winds should be fairly widespread through this evening.

There will be lulls each morning within 10 miles from the coast,
but the scy will extend through those lulls to highlight the
extended period of gusty afternoon and night winds.

Two distinct wave types will be observable over the waters, with a
long period (13-15 seconds) south to southwest swell through
Tuesday, and a short period (6-8 second) west swell and or wind
wave. The buoys will likely highlight the long period swell, but
the short period swell will be most noticeable and will be
highlighted in the forecast. By the middle to end of the week, the
short-period west swell will dominate as the south swell fades.

Fire weather 26 130 pm.

Red flag conditions reported at about a dozen reporting sites
within the warning area as of 1 pm pdt this afternoon. Widespread
single digit relative humidities run from all across the antelope
valley, into the western two thirds of the la county mountains,
and extending northwestward into the santa babara county
mountains. Along with this warm and very dry air are areas with
west and southwest winds gusting between 30 and 40 mph, including
at lake palmdale, ozena, and lancaster. The highest gust reported
thus far has been 47 mph at mill creek. These winds will remain
around this intensity through the afternoon before decreasing over
the course of the evening. Thus the current expiration time of 9
pm looks good for rfw over antelope valley, la county mountains,
and santa clarita. The only wildcard will be if duration criteria
will be met. Elsewhere outside of the rfw there is still an
elevated fire weather concern across the ventura and santa barbara
county mountains and across the higher elevations of the santa
barbara south coast where rufigio is reporting 18% rh and winds
gusting in the 20-28 mph range.

Expecting a light sundowner event along the western portion of
the santa barbara south coast. Sba-smx pressure gradient peaks out
at -4.0 tonight. With continued dry air in place and winds
expected to gust around 35 to 40 mph, primarily in the passes and
canyons from gaviota to goleta, elevated fire weather conditions
are expected over that area this evening and again on Tuesday
evening.

Fire weather conditions improve a bit Tuesday all areas with the
upper level ridge beginning to weaken, bringing cooler temperatures
and slightly higher minimum relative humidities. The single digit
relative humidities will be restricted to far eastern antelope
valley, although min rh's in the lower teens will reappear across
all interior sections. Winds, however, will not be as strong as
today's, but still breezy in spots in the afternoon to warrant
elevated conditions.

The upper ridge changes little through the week as temps cool some
around midweek before a possible bump up again by Friday. Overall
expect fire weather conditions to be below elevated Wednesday-fri.

Lox watches warnings advisories
Ca... Heat advisory in effect until 9 pm pdt this evening for zones
53-54-88-547. (see laxnpwlox).

Red flag warning in effect until 9 pm pdt this evening for
zones 254-259-288. (see laxrfwlox).

Pz... Small craft advisory in effect until 3 am pdt Wednesday for
zones 645-650-670-673-676. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Tuesday for
zone 655. (see laxmwwlox).

Hazard potential outlook (thu-mon)
no significant hazards expected.

Public... Mw
aviation... Kittell
marine... Kittell
fire... Jackson
synopsis... Kaplan
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 2 mi48 min 61°F1013.4 hPa
PFDC1 4 mi48 min S 6 G 7
AGXC1 4 mi48 min SW 12 G 15 68°F 1013.4 hPa
PXAC1 5 mi54 min ESE 1.9 G 2.9
PSXC1 6 mi48 min SSE 5.1 G 8
PFXC1 6 mi54 min SW 13 G 15 70°F
BAXC1 6 mi48 min SE 4.1 G 5.1
46256 6 mi44 min 63°F4 ft
46222 - San Pedro, CA (092) 6 mi66 min 66°F4 ft
PRJC1 7 mi54 min SW 9.9 G 12
46253 11 mi36 min 67°F3 ft
46221 - Santa Monica Bay, CA (028) 20 mi36 min 67°F3 ft
ICAC1 - 9410840 - Santa Monica Pier 24 mi48 min WSW 8 G 8.9
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 40 mi36 min SSW 1.9 G 3.9 68°F 67°F1013.1 hPa (-0.3)61°F

Wind History for Los Angeles Pier 400, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA7 mi49 minNW 1410.00 miClear75°F57°F54%1013.2 hPa
Long Beach, Long Beach Airport, CA12 mi43 minS 710.00 miFair81°F61°F51%1013 hPa
Los Alamitos Army Airfield, CA15 mi98 minSSW 1210.00 miFair79°F62°F57%1013.5 hPa
Hawthorne, Hawthorne Municipal Airport, CA16 mi43 minWNW 10 G 1610.00 miFair82°F51°F34%1013.3 hPa
Los Angeles, Los Angeles International Airport, CA17 mi43 minWSW 1110.00 miFair78°F57°F50%1013.3 hPa
Fullerton, Fullerton Municipal Airport, CA21 mi43 minSSW 810.00 miFair86°F60°F42%1012.6 hPa
Avalon Catalina Airport, CA21 mi45 minW 1110.00 miFair94°F28°F9%1012.2 hPa
Los Angeles / USC Campus Downtown, CA22 mi49 minW 710.00 miFair86°F51°F30%1012.6 hPa
John Wayne-Orange County Airport, CA23 mi43 minSSW 1010.00 miFair80°F59°F49%1013.1 hPa
Santa Monica, Santa Monica Municipal Airport, CA24 mi45 minSW 1110.00 miFair76°F55°F50%1013.1 hPa

Wind History from TOA (wind in knots)
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Last 24hrNW14NW9NW13
G20
NW13
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N7--------------------CalmCalmCalmW5NW7NW9NW14NW14NW14
1 day agoNW14NW13NW12NW13NW13--------------------CalmCalmCalmNW9NW11NW14NW15NW20
G25
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G25
2 days agoNW16W16W16W12W12--------------------W4NW4NW4NW8NW10NW10NW11NW12NW15

Tide / Current Tables for Los Angeles (outer harbor), California
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Los Angeles (outer harbor)
Click for Map
Mon -- 05:44 AM PDT     Sunrise
Mon -- 05:59 AM PDT     -1.37 feet Low Tide
Mon -- 08:39 AM PDT     Moonrise
Mon -- 12:37 PM PDT     4.37 feet High Tide
Mon -- 05:34 PM PDT     1.97 feet Low Tide
Mon -- 08:07 PM PDT     Sunset
Mon -- 10:34 PM PDT     Moonset
Mon -- 11:38 PM PDT     6.20 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.253.41.60.1-1-1.4-1-0.11.22.63.74.34.33.93.22.52.122.53.34.45.46.1

Tide / Current Tables for Long Beach, Terminal Island, California
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Long Beach
Click for Map
Mon -- 05:44 AM PDT     Sunrise
Mon -- 06:00 AM PDT     -1.39 feet Low Tide
Mon -- 08:39 AM PDT     Moonrise
Mon -- 12:37 PM PDT     4.40 feet High Tide
Mon -- 05:35 PM PDT     2.01 feet Low Tide
Mon -- 08:07 PM PDT     Sunset
Mon -- 10:34 PM PDT     Moonset
Mon -- 11:39 PM PDT     6.26 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.35.13.51.70.1-1-1.4-1-0.11.22.63.74.34.443.32.62.12.12.53.44.55.56.1

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 (18,4,5,8)
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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.