Wednesday, June19, 2019 L-36.com


Marine Weather and Tides
Avalon, CA

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Sunrise 5:41AMSunset 8:08PM Wednesday June 19, 2019 10:01 AM PDT (17:01 UTC) Moonrise 10:18PMMoonset 7:47AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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- 902 Am Pdt Wed Jun 19 2019
Today..Winds variable 10 kt or less, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. W swell 2 ft at 9 seconds.
Tonight..W winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 1 ft at 9 seconds.
Thu..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. W swell 1 ft at 10 seconds.
Thu night..W winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. S swell 2 ft at 19 seconds. Patchy fog after midnight. Patchy drizzle after midnight.
Fri..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 11 seconds and S 2 ft at 18 seconds. Patchy fog in the morning. Patchy drizzle in the morning.
Fri 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 9 seconds and S 2 ft at 17 seconds.
Sat..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Sun..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
PZZ600 902 Am Pdt Wed Jun 19 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z, or 9 am pdt, a 1032 mb high pressure center was located about 600 nm west of eureka, california and a 1007 mb thermal low was centered near las vegas, nevada.


7 Day Forecast for Marine Location Near Avalon, CA
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location: 33.51, -118.64     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 191625
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
925 am pdt Wed jun 19 2019

Synopsis 19 723 am.

For today through the rest of the period, strong onshore winds
will keep low clouds over the coasts and valleys. There will be
slow and limited afternoon clearing each day with possible drizzle
in the morning. Temperatures will cool through Friday and warm
slightly into the weekend as there will be better clearing.

Short term (tdy-fri) 19 925 am.

***update***
while the pattern is changing from the trof to high pressure
ridging in from the west, the sensible weather will feel similar
to yesterday's: coastal stratus that is slow to clear, gusty
afternoon winds in antelope valley, and cumulus clouds over the
ventura and los angeles co mountains. Not expecting as much rain
as fell yesterday afternoon, but there may be brief, isolated
showers over ventura co mountains this afternoon.

***from previous discussion***
weak high pressure aloft will continue over the center of the
state today with 588 dm hgts overhead. Moderate onshore flow both
to the east and north will become very strong in afternoon as it
follows the diurnal pressure curve. The marine layer is between
2500 and 3000 feet deep and low cloud cover all the of the csts
vlys and cstl slopes. The very strong onshore flow this afternoon
will limit clearing. There will likely be patchy drizzle as well
but not as much as ydy morning as the marine layer is not
deepening as much as it was ydy. It will continue to be rather
unstable over the mtns but there is hardly any moisture so only
expect some build ups and no showers. The strong onshore flow will
bring gusty winds to the antelope vly with isolated advisory level
gusts near lake palmdale. In a study of contrasts the marine layer
and onshore flow will keep the csts and vlys 5 to 10 degrees blo
normal while the higher than normal hgts will bring interior temps
3 to 6 degrees above normal.

The ridge will be replaced with broad cyclonic flow on Thursday as
a cold upper low pushes into the great basin. The onshore flow
is forecast increase. This along with the lowering hgts and weak
lift from the cyclonic flow will produce a great environment for
morning drizzle. It would not be surprising if more than a few
areas received a few hundredths of an inch of measurable
precipitation from the drizzle. The foothill areas will likely see
the heaviest drizzle due to the extra kick from the orographic
lift. There will likely be less and slower clearing. MAX temps
will fall across the interior due to the lowering hgts. The coasts
will see little change but the vlys will cool even further and
will likely end up over degrees blo normals. The antelope vly will
likely see advisory level wind gusts in the afternoon and early
evening when onshore flow peaks near 10 mb to the east which
exceeds the 97th percentile for onshore flow for this time of the
year.

Friday should be a near repeat of Thursday except that there will
be even lower hgts and perhaps more drizzle. Look for slow to no
clearing its actually possible that the vlys will not clear or
only partially clear. It will be the coolest day of the next 7
with MAX temps across the vlys and interior 12 to 18 degrees blo
normal.

Long term (sat-tue) 19 320 am.

Very weak ridging is expected over the weekend along with offshore
trends - both of which will help the marine layer clouds clear
earlier and allow afternoon high temperatures to rise some. By
Sunday, temperatures will be near normal across the interior but
will still be 5 to 10 degrees below normal across the coasts and
valleys.

Another trof will arrive Monday, this time from the northwest,
bringing back the strong onshore flow, less clearing and cooler
coastal temperatures.

Aviation 19 0932z.

At 07z, the marine layer depth was around 2500 feet deep at klax.

The top of the inversion was near 4800 feet with a temperature
around 22 degrees celsius.

Moderate confidence in the current forecast. Higher confidence in
timing, less confidence in flight categories at coastal and valley
terminals. Ifr to MVFR conditions will continue through 16z, then
conditions should become primarily MVFR. MVFR conditions will
likely linger at coastal terminals into the afternoon hours.

Immediate coastal terminals may not clear at all today.

Klax... MVFR conditions will likely linger through the period. There
is a 30 percent chance of ifr between 11z and 16z. There is a 30
percent chance ofVFR conditions developing between 22z and 00z.

Kbur... MVFR conditions will likely linger through 19z. There is a
50 percent chance of ifr between 11z and 16z.VFR conditions
should develop between 19z and 21z.

Marine 19 904 am.

Winds and seas will likely remain below small craft advisory
levels through at least Thursday. There is a 50 percent chance
for advisory level seas and winds across the northern most outer
waters Friday afternoon and evening, and a 30 percent chance of
advisory level winds each afternoon and evening through the
weekend.

Lox watches warnings advisories
Ca... None.

Pz... None.

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

Public... Rorke jld
aviation... Hall
marine... Sweet hall
synopsis... Stewart
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46222 - San Pedro, CA (092) 19 mi38 min 65°F2 ft
46221 - Santa Monica Bay, CA (028) 24 mi61 min 65°F3 ft
OHBC1 - 9410660 - Los Angeles, CA 24 mi49 min 65°F1016.3 hPa
46253 25 mi31 min 67°F2 ft
AGXC1 25 mi43 min WSW 7 G 8 65°F 1016.2 hPa
PFDC1 26 mi43 min SSW 7 G 8.9
46256 27 mi61 min 64°F2 ft
PXAC1 27 mi43 min S 7 G 8
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 28 mi31 min WSW 7.8 G 9.7 62°F 64°F1016.3 hPa61°F
BAXC1 28 mi55 min ESE 5.1 G 6
PFXC1 28 mi43 min SW 7 G 8 67°F
PSXC1 28 mi43 min SSW 5.1 G 7
PRJC1 29 mi43 min WSW 7 G 8
ICAC1 - 9410840 - Santa Monica Pier 35 mi49 min 65°F1016.2 hPa

Wind History for Angels Gate, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Avalon Catalina Airport, CA14 mi70 minNE 410.00 miOvercast60°F57°F90%1015.7 hPa

Wind History from AVX (wind in knots)
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Last 24hr5NE55Calm533W6CalmSW3SW3SW4CalmCalmSW3SW4CalmCalmE3E3CalmE4NE43
1 day agoSE5E343E8SE75E4SE6S3S4SE7SE5CalmCalmCalmCalmCalmCalmS3SE3SE3CalmCalm
2 days agoW3CalmSW6W8SW7W7W9SW64W4W5SW3SW5SW4SW7SW4SE4SE5SW5S3E4E4SE7SE5

Tide / Current Tables for Catalina Harbor, California
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Catalina Harbor
Click for Map
Wed -- 05:44 AM PDT     Sunrise
Wed -- 06:01 AM PDT     -0.67 feet Low Tide
Wed -- 07:47 AM PDT     Moonset
Wed -- 12:41 PM PDT     3.47 feet High Tide
Wed -- 05:03 PM PDT     2.43 feet Low Tide
Wed -- 08:06 PM PDT     Sunset
Wed -- 10:17 PM PDT     Moonrise
Wed -- 11:09 PM PDT     5.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.14.22.91.60.4-0.4-0.7-0.40.31.22.233.43.53.22.92.62.42.633.74.55.15.4

Tide / Current Tables for Catalina Harbor, California (2)
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Catalina Harbor
Click for Map
Wed -- 05:44 AM PDT     Sunrise
Wed -- 06:02 AM PDT     -0.66 feet Low Tide
Wed -- 07:47 AM PDT     Moonset
Wed -- 12:41 PM PDT     3.46 feet High Tide
Wed -- 05:03 PM PDT     2.39 feet Low Tide
Wed -- 08:06 PM PDT     Sunset
Wed -- 10:17 PM PDT     Moonrise
Wed -- 11:08 PM PDT     5.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.14.12.91.60.4-0.4-0.7-0.40.31.22.22.93.43.43.22.92.52.42.533.74.55.15.3

Weather Map and Satellite Images
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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 (13,3,4,5)
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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.