Saturday, August19, 2017 L-36.com


Marine Weather and Tides
Ladera Heights, 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 6:17AMSunset 7:37PM Friday August 18, 2017 10:41 PM PDT (05:41 UTC) Moonrise 2:56AMMoonset 5:19PM Illumination 10% Phase: Waning Crescent; Moon at 27 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- 816 Pm Pdt Fri Aug 18 2017
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 ft at 10 seconds and S 3 ft at 15 seconds. Patchy fog after midnight.
Sat..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 11 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Sat 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 10 seconds and S 3 ft at 14 seconds.
Sun..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 3 ft at 14 seconds.
Sun 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 at 10 seconds and S 2 ft at 13 seconds.
Mon..Winds variable 10 kt or less. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 13 seconds.
Mon night..SW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 1 to 2 ft at 10 seconds. S swell 1 to 2 ft.
Tue..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Wed..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
PZZ600 816 Pm Pdt Fri Aug 18 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 1030 mb surface high was about 600 nm W of eureka and a 1008 mb low was near las vegas.

7 Day Forecast for Marine Location Near Ladera Heights, CA
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location: 34.02, -118.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 190327
afdlox
area forecast discussion
national weather service los angeles oxnard ca
827 pm pdt Fri aug 18 2017

Synopsis
Possible showers and thunderstorms for the mountains of ventura,
santa barbara, and los angeles counties and deserts into Monday. A
low will bring overnight low clouds and fog to the coast and some
valleys into next week, the temperatures will be near normal with
a warmup on Thursday and into the weekend as the low weakens.

Short term (tonight-mon)
weak upper level low pressure system off the coast of southern
california helping to bring some mid level moisture and
instability across the local mountains this afternoon. As a
result, there were some cloud buildups over the local mountains,
with one thunderstorm observed near pine mountain club across the
border of the ventura kern county mountains. Otherwise, satellite
imagery showing some low clouds returning to some coastal areas
this evening, especially la county and the central coast. Acars
data showing marine layer depth across the la basin around 1400
feet, so still deep enough for some low clouds to locally extend
into some of the coastal valleys overnight. A slightly stronger
onshore flow on Saturday with greater coverage of marine layer
clouds in the morning should allow for a couple of degrees of
cooling for most areas on Saturday.

The main weather focus for Saturday will be the thunderstorm
threat over the local mountains. Latest 00z NAM model showing
upper level low pressure system in a more favorable location for
convection tomorrow afternoon, with a vort MAX swinging into the
ventura county mountains. Precipitable water values were
generally around 1 inch this afternoon, and are expected to
increase to between 1.2 and 1.4 inches by late Saturday afternoon
across ventura and santa barbara counties. 00z NAM cross sections
focusing best moisture across the mountains of ventura and santa
barbara counties, where there is greater instability (with lifted
index values ranging between -4 and -8). Model soundings over the
ventura sba county mountains also showing impressive surface based
cape values ranging between 1000 and 2000 j kg. Based on the
better moisture instability profile, have increased TSTM threat
for ventura sba county mountains for Saturday afternoon into early
evening in evening update. While moisture levels are still only
moderate, upper level steering winds are rather weak. As a result,
any thunderstorm that do develop will be slow moving, capable of
producing brief heavy rainfall with localized flash flooding
potential. If these convective parameters are anywhere close to
what the NAM are indicating, thunderstorms will also have the
potential for large vertical growth, increasing the potential for
gusty downdraft winds and small hail. With the mid level wind flow
being more northerly tomorrow afternoon, some of these storms
could drift towards the foothills of the ventura county valleys as
well as the eastern portions of the santa ynez mountains.

*** from previous discussion ***
today is another fairly seasonal day with moderate onshore flow
in place across the region. The upper level trough will remain
into next week, but weaken a bit Saturday as 500 mb heights climb
slightly. The 1000-foot marine layer depth this morning should
deepen through the weekend, possibly deepening to near 2000-2500
feet by Monday. Near persistence seems to be the best forecast for
the immediate coastal locales through the weekend and into early
next week. Away from the coast, temperatures will cool for early
next week, after a slight warm-up today and Saturday.

The focus of the forecast for the weekend will be on the instability
associated with the trough. East to southeast flow aloft could
draw in enough moisture to get rain out of the afternoon clouds. Pops
with isolated showers and thunderstorms extended through Monday
but still only at the slight chance level.

Long term (tue-fri)
by Tuesday the marine layer should deepen as the trough deepens
and slowly lifts out of the region through Wednesday. Night
through morning drizzle cannot be ruled out for the southland
early next week as the marine layer depth will likely deepen
substantially between Monday and Wednesday. Current forecast keeps
marine layer depths inline with 2000-2500 feet, but a depth up to
near 4000 feet between Tuesday and Wednesday would not be
shocking. A general cooling trend should be expected into midweek
next week as the trough wobbles around and creates ebbs and flows
of the marine intrusion.

Drier southwest flow aloft looks to develop for the latter half of
next week as the trough lifts out. Another weak trough of low
pressure reforms off the pacific northwest coast and a ridge of
high pressure remains centered over the southeast states. GFS is
still liking a warm up late in the week next week.

Aviation 18 2320z...

at 2320z, the marine inversion at klax was based at 1400 feet.

The top of the inversion was 5300 feet with a temperature of 21
degrees celsius.

Timing of return of low CIGS vsbys may be off by 3 hours or a
category lower than forecasted (or higher as well for ksmx). There
is a 20 percent chance of ifr CIGS vsbys for kvny and kprb
between 12z and 16z. There is a 20 percent chance thatVFR
cigs vsbys prevail through the period at ksba.

Klax... Moderate confidence in 00z TAF after 05z. Return of low
clouds is possible between 05z and 11z with a 30 percent of ifr
cigs vsbys, which would be most likely between 05z and 10z.

Kbur... Moderate confidence in 00z taf. Have included a brief
ifr cig for kbur early Saturday morning, but there is a 30 percent
chance that no cig will arrive.

Marine 18 800 pm...

for the outer waters, moderate to high confidence in current
forecast. Winds and seas are expected to remain below small craft
advisory (sca) levels through at least Tuesday. However... There is
a 40% chance that local gusts to 25 knots near point conception become
more widespread this evening... Requiring issuance of a sca.

For the inner waters, high confidence in current forecast. Winds
and seas are expected to remain below SCA levels through Tuesday.

Lox watches warnings advisories
Ca... Beach hazards statement in effect from Saturday afternoon
through Sunday evening for zones 40-41. (see laxcfwlox).

Pz... None.

Hazard potential outlook (mon-fri)
a high risk of rip currents exists at area beaches through the
weekend, and a beach hazard statement is in effect through Sunday
evening. Isolated showers and thunderstorms cannot be ruled out
for Sunday and Monday.

Public... Gomberg jld
aviation... Gomberg
marine... Smith
synopsis... Stu
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ICAC1 - 9410840 - Santa Monica Pier 7 mi42 min WSW 6 G 8 65°F 73°F1015 hPa (+1.2)
46221 - Santa Monica Bay, CA (028) 18 mi42 min 70°F4 ft
PSXC1 19 mi42 min W 7 G 8
BAXC1 19 mi42 min NW 8 G 8.9
PFXC1 20 mi42 min NNW 6 G 7 68°F
OHBC1 - 9410660 - Los Angeles, CA 21 mi42 min 67°F1014.7 hPa (+1.2)
PRJC1 22 mi42 min WSW 6 G 8
AGXC1 22 mi42 min WSW 8 G 9.9 67°F 1014.6 hPa (+1.2)
46256 24 mi50 min 68°F3 ft
46222 - San Pedro, CA (092) 28 mi42 min 69°F3 ft
46253 32 mi42 min 70°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 41 mi32 min W 5.8 G 7.8 70°F1014.3 hPa

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles / USC Campus Downtown, CA4 mi55 minVar 310.00 miOvercast69°F61°F76%1014.2 hPa
Santa Monica, Santa Monica Municipal Airport, CA5 mi51 minSW 410.00 miOvercast66°F62°F87%1014.6 hPa
Los Angeles, Los Angeles International Airport, CA6 mi49 minW 810.00 miMostly Cloudy66°F62°F87%1014.5 hPa
Hawthorne, Hawthorne Municipal Airport, CA6 mi49 minWNW 410.00 miOvercast68°F62°F81%1014.6 hPa
Burbank - Bob Hope Airport, CA12 mi49 minSE 610.00 miFair68°F60°F76%1013.3 hPa
Torrance, Zamperini Field Airport, CA15 mi2.9 hrsWNW 1110.00 miMostly Cloudy66°F60°F83%1013.5 hPa
Van Nuys, Van Nuys Airport, CA15 mi51 minE 410.00 miFair69°F61°F76%1013.7 hPa
Long Beach, Long Beach Airport, CA17 mi49 minWNW 510.00 miFair68°F63°F84%1014.4 hPa
El Monte, CA18 mi2.9 hrsSSW 710.00 miFair75°F57°F54%1013.9 hPa
Los Alamitos Army Airfield, CA23 mi1.7 hrsW 710.00 miFair68°F61°F78%1014.5 hPa
Fullerton, Fullerton Municipal Airport, CA23 mi49 minW 410.00 miFair70°F63°F79%1014.1 hPa

Wind History from CQT (wind in knots)
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Last 24hr4W3W3CalmCalmCalmCalmCalmCalmCalmCalmCalm--CalmW7W6--4W3W5W4W4W53
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm--Calm3W5----W74W6W4W645
2 days agoW3--33CalmCalmCalm4E3SE43CalmCalm5W73W54364W3Calm3

Tide / Current Tables for Santa Monica, Municipal Pier, California
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Santa Monica
Click for Map
Sat -- 02:33 AM PDT     -0.77 feet Low Tide
Sat -- 04:00 AM PDT     Moonrise
Sat -- 06:18 AM PDT     Sunrise
Sat -- 08:57 AM PDT     4.38 feet High Tide
Sat -- 02:02 PM PDT     1.72 feet Low Tide
Sat -- 06:12 PM PDT     Moonset
Sat -- 07:35 PM PDT     Sunset
Sat -- 08:14 PM PDT     6.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30-0.7-0.7-0.112.23.44.14.44.13.52.721.722.83.95.16.16.66.45.64.1

Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Sat -- 02:33 AM PDT     -0.73 feet Low Tide
Sat -- 04:00 AM PDT     Moonrise
Sat -- 06:18 AM PDT     Sunrise
Sat -- 08:58 AM PDT     4.41 feet High Tide
Sat -- 02:02 PM PDT     1.75 feet Low Tide
Sat -- 06:12 PM PDT     Moonset
Sat -- 07:35 PM PDT     Sunset
Sat -- 08:14 PM PDT     6.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.1-0.6-0.7-0.112.23.44.24.44.13.52.721.822.83.95.26.26.76.55.64.2

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 (1,6,7,8)
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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.