Monday, August21, 2017 L-36.com


Marine Weather and Tides
Rolling Hills Estates, 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 6:19AMSunset 7:32PM Monday August 21, 2017 8:34 PM PDT (03:34 UTC) Moonrise 6:10AMMoonset 7:44PM 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- 829 Pm Pdt Mon Aug 21 2017
Tonight..W winds 10 to 15 kt...becoming variable 10 kt or less. Wind waves 1 to 2 ft. Mixed swell W 2 ft at 10 seconds and S 2 ft at 13 seconds.
Tue..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. S swell 1 to 2 ft at 12 seconds.
Tue night..W winds 10 to 15 kt...becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 12 seconds. Patchy fog after midnight.
Wed..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 9 seconds and S 2 ft at 12 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. S swell 1 to 2 ft at 12 seconds. Patchy fog after midnight.
Thu..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SW swell 1 to 2 ft. Patchy fog in the morning.
Thu night..SW winds 10 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.
Fri..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 1 to 2 ft. Patchy fog.
Sat..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 1 to 2 ft. Patchy fog.
PZZ600 829 Pm Pdt Mon Aug 21 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 02z...or 7 pm pdt...a 1027 mb surface high was centered about 950 nm nw of san francisco and a weak 1015 mb low pressure area was 400 nm W of los angeles.

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 220316
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
816 pm pdt Mon aug 21 2017

Synopsis
A weak upper low just west of point conception will maintain
overnight low clouds and fog, along with cooler than normal
temperatures through late in the week. As the upper low moves
inland... A warming trend is expected starting Friday, with
significant warming possible over the weekend.

Update
The marine layer has shrunk to about 1100 feet and the capping
inversion is quite weak. There are 2 mb offshore trends both from
the north and the east. There are no low clouds anywhere near
coasts. All of the latest mdl guidance shows very little in the
way of low clouds for Tuesday morning. Will not buy fully into
this idea but did take low clouds out of all areas this evening
and totally removed them from the vlys and the sba south coast.

Coastal MAX temps were a little warmer than fcst today and with
a weaker marine layer expect a little more warming tomorrow. The
forecast has been updated to reflect these warmer temps and
clearer skies.

Short term (mon-thu)
between the reduced marine lyr and another 1-2mb of offshore
trends most areas should see a few degrees of warming Tuesday,
especially the coasts and valleys.

A slight onshore trend Wednesday and Thursday may bring a degree
or two of cooling to coast and coastal valleys Wednesday but
otherwise very little change. Low clouds will continue to push
into the valleys overnight and clear to around the coast or just
offshore during the afternoon. Monsoon moisture will remain well
to the east so no convection expected.

Long term (fri-mon)
Friday will be the beginning of what appears to be a significant
warming trend that will last at least through the middle of next
week. Friday and Saturday will just be a couple degrees warmer
with still some decent onshore flow in place and low clouds
likely still reaching the coastal valleys overnight. By Sunday,
however, high pressure is expected to strengthen from the
southeast and onshore flow will be weakening quite a bit. Highs
expected to reach the triple digits in the warmer valleys Sunday
and even warmer Monday. And by next Tue or Wed we could be looking
at some weak offshore flow in the morning and highs into the 90s
for some coastal areas and well over 100 for the valleys. The door
is open for monsoon moisture but models still not showing
anything moving into our area at least through early next week.

Aviation
22 0000z
at 1800z, the marine inversion at klax was near 1500 feet deep.

The top of the inversion was 2800 feet with a temperature of 23
degrees celsius.

Good confidence in cavu conds through 06z. Low confidence in tafs
from 06z to 18z. Low clouds could form at coastal sites at anytime
between 06z to 13z. There is a 30 percent chc no CIGS at all at
any coastal site and a 40 percent chc of CIGS at the vly site. If
low clouds do form theVFR transition could arrive up to 90 min
earlier than fcst.

Klax... Good confidence in cavu conds through 07z. Low confidence
07z to 19z. Low clouds could arrive at any time between 07z and
12z and there is a 30 percent chc low clouds will not arrive at
all. If low clouds do form there is a chc the transition toVFR
could occur as early as
kbur... Good confidence in cavu conds through 08z. Low confidence
from 08z-17z with a 40 percent chc of ovc008 conds.

Marine
21 815 pm
outer waters, good confidence through Wednesday afternoon then moderate
confidence. Through Wednesday, winds and seas will remain below
small craft advisory (sca) levels. For Wednesday night, there is a
60 percent chance of SCA level winds developing. For Thursday and
Friday, the winds will likely remain at SCA level and northwest
to west swell will build to 6-7 ft.

Inner waters, high confidence in current forecast. For the waters
north of point sal, winds and seas will remain below SCA levels
through Wednesday. From Wednesday night through Friday, SCA level
winds will be possible mainly in the afternoon and evening. For
the waters south of point conception, winds and seas will remain
below SCA levels.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (thu-mon)
a significant heatwave could develop this upcoming weekend and
continue into early next week.

Public... Mw rorke
aviation... Rorke
marine... Boldt asr
synopsis... Smith
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OHBC1 - 9410660 - Los Angeles, CA 0 mi47 min 66°F1014.5 hPa
AGXC1 1 mi47 min WSW 12 G 14 68°F 1014.4 hPa
PFDC1 2 mi47 min Calm G 1.9
PFXC1 3 mi47 min NW 6 G 8 71°F
PXAC1 3 mi47 min NNW 7 G 8.9
PSXC1 4 mi47 min WNW 6 G 9.9
BAXC1 4 mi47 min NNW 8 G 9.9
46256 4 mi43 min 69°F2 ft
PRJC1 5 mi47 min W 9.9 G 11
46222 - San Pedro, CA (092) 7 mi35 min 69°F2 ft
46253 11 mi35 min 69°F2 ft
46221 - Santa Monica Bay, CA (028) 21 mi35 min 69°F2 ft
ICAC1 - 9410840 - Santa Monica Pier 23 mi53 min W 12 G 15 68°F 72°F1014.6 hPa
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 42 mi35 min W 12 G 14 71°F1014.3 hPa (-0.6)

Wind History for Angels Gate, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Torrance, Zamperini Field Airport, CA6 mi48 minWNW 1010.00 miClear66°F60°F83%1014.6 hPa
Long Beach, Long Beach Airport, CA10 mi42 minWNW 910.00 miFair70°F61°F73%1014.2 hPa
Los Alamitos Army Airfield, CA13 mi97 minW 910.00 miFair75°F61°F63%1014.1 hPa
Hawthorne, Hawthorne Municipal Airport, CA15 mi42 minW 610.00 miFair69°F61°F76%1014.4 hPa
Los Angeles, Los Angeles International Airport, CA17 mi42 minW 1110.00 miFair69°F61°F76%1014.2 hPa
Fullerton, Fullerton Municipal Airport, CA19 mi42 minVar 510.00 miFair73°F61°F66%1013.8 hPa
Los Angeles / USC Campus Downtown, CA21 mi48 minW 410.00 miFair71°F61°F71%1013.9 hPa
John Wayne-Orange County Airport, CA21 mi42 minWSW 510.00 miFair70°F62°F76%1014.3 hPa
Santa Monica, Santa Monica Municipal Airport, CA23 mi44 minWSW 910.00 miFair69°F62°F78%1014.2 hPa
Avalon Catalina Airport, CA23 mi44 minSW 89.00 miPartly Cloudy61°F60°F97%1014.6 hPa

Wind History from TOA (wind in knots)
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Last 24hr--------------------Calm4CalmCalm4W8W8W13W9W14W13NW15W13W10
1 day ago--------------------CalmCalmNW3N3W8W10NW13NW14NW14W14W9W9W9W8
2 days ago--------------------SW4SW4CalmE3NW8NW9NW13NW12NW16W15W13W13W8W6

Tide / Current Tables for Los Angeles, California
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Los Angeles
Click for Map
Mon -- 03:51 AM PDT     -0.90 feet Low Tide
Mon -- 06:10 AM PDT     Moonrise
Mon -- 06:19 AM PDT     Sunrise
Mon -- 10:10 AM PDT     5.03 feet High Tide
Mon -- 11:31 AM PDT     New Moon
Mon -- 03:35 PM PDT     1.31 feet Low Tide
Mon -- 07:31 PM PDT     Sunset
Mon -- 07:43 PM PDT     Moonset
Mon -- 09:43 PM PDT     6.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.720.4-0.6-0.9-0.40.72.13.54.654.84.132.11.41.41.934.45.66.46.66

Tide / Current Tables for Los Patos (highway bridge), California
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Los Patos (highway bridge)
Click for Map
Mon -- 05:01 AM PDT     -0.56 feet Low Tide
Mon -- 06:09 AM PDT     Moonrise
Mon -- 06:18 AM PDT     Sunrise
Mon -- 11:09 AM PDT     4.14 feet High Tide
Mon -- 11:31 AM PDT     New Moon
Mon -- 04:46 PM PDT     0.74 feet Low Tide
Mon -- 07:31 PM PDT     Sunset
Mon -- 07:42 PM PDT     Moonset
Mon -- 10:41 PM PDT     5.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.53.21.80.6-0.3-0.6-0.30.61.82.93.84.13.93.32.41.50.90.81.22.23.44.65.35.5

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 (23,6,7,8)
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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.