Thursday, July27, 2017 L-36.com


Marine Weather and Tides
Marina del Rey, 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 6:01AMSunset 7:58PM Thursday July 27, 2017 5:51 PM PDT (00:51 UTC) Moonrise 10:34AMMoonset 11:04PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 222 Pm Pdt Thu Jul 27 2017
Tonight..W winds 10 to 15 kt with local gusts to 20 kt...becoming sw 5 to 10 kt after midnight. Wind waves 2 ft or less. W swell 1 to 2 ft at 9 seconds. S swell 1 to 2 ft. Patchy fog.
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 9 seconds and S 2 ft at 17 seconds. Patchy fog 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 8 seconds and S 3 ft at 15 seconds. Patchy fog.
Sat..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. S swell 3 to 4 ft at 13 seconds. Patchy fog in the morning.
Sat night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. S swell 3 to 4 ft at 13 seconds. Patchy fog.
Sun..Winds variable 10 kt or less...becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. S swell 3 to 4 ft at 13 seconds. Patchy fog in the morning.
Sun night..W winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. S swell 3 to 4 ft at 12 seconds. Patchy fog after midnight.
Mon..W winds 10 to 15 kt. Wind waves 2 ft or less. S swell 3 to 4 ft. Patchy fog.
Tue..SW winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 to 4 ft. Patchy fog.
PZZ600 222 Pm Pdt Thu Jul 27 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 1030 mb surface high was centered 900 nm W of point conception. A 1005 mb thermal low was centered near needles.

7 Day Forecast for Marine Location Near Marina del Rey, CA
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location: 33.96, -118.45     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 272125
afdlox
area forecast discussion
national weather service los angeles oxnard ca
225 pm pdt Thu jul 27 2017

Synopsis
Partly cloudy skies will persist into next week, with an overnight
marine layer along the coast. Early next week, monsoonal moisture
should bring possible thunderstorms and showers in the afternoon and
evening for the ventura mountains and los angeles valleys and
eastward. The temperatures are forecast to be around normal this
week, with a warming trend next week as the high builds in.

Short term (tdy-sun)
overall, 12z models in good synoptic agreement through the period.

At upper levels, ridge remains centered over the texas panhandle
area through Saturday as weak trough settles over the west coast.

On Sunday, the center of the ridge moves westward, settling a bit
closer to the four corners area. Near the surface, generally
moderate onshore flow will prevail through the period.

Forecast-wise, no major issues through Saturday. With upper trough
settling over west coast, there will be some lowering of h5
heights which should allow for some slight marine inversion
deepening. High resolution models indicate weak eddy circulations
developing the next couple of nights. So, will expect stratus to
be rather widespread across the coastal plain the next two
mornings and could squeeze into some of the lower coastal valleys.

Otherwise, skies should remain mostly clear through Saturday. As
for temperatures, there should be a degree or two of cooling for
most areas Friday and Saturday. The only other wrinkle for tonight
will be the possibility of some locally gusty northerly winds
across the santa ynez range and i-5 corridor. Nothing approaching
advisory-levels, but probably just enough to notice.

For Sunday, upper flow pattern turns a bit more southeasterly as
upper ridge moves westward and weak low develops over northern
baja mexico. So, some mid-level moisture could filter into the
area. With decent instability over the mountains, could be enough
to generate an isolated thunderstorm. Pwats are not too
impressive, but definitely enough to warrant continuation of
slight chance pops over the antelope valley and los angeles county
mountains. Otherwise, there will be some stratus Sunday morning
across the coastal plain with increasing high clouds through the
day for all areas. As for temperatures, will expect some slight
warming for most areas on Sunday with some increase in h5 heights
and thicknesses.

Long term (mon-thu)
overall, 12z models are in surprisingly good synoptic agreement
through the period. At upper levels, ridge gradually strengthens
with the ridge center setting up over nevada and interior central
california while a weak upper low spins off the baja mexico coast.

Near the surface, moderate onshore flow is forecast to continue.

Forecast-wise, main issues will be potential for monsoonal
moisture and temperatures. Given the forecasted upper level
pattern, an east to southeast flow will continue across the area
which should allow for some infiltration of monsoonal moisture.

So, there will be a threat of afternoon evening thunderstorms
over the ventura los angeles mountains and antelope valley Monday
through Thursday. Additionally, models are still hinting at the
potential for an easterly wave Monday afternoon night. So, will
keep some slight chance pops in the forecast for the los angeles
county valley as well as the ventura coastal valleys.

As for temperatures, the building upper level ridge will allow for
a warming trend for all areas through the period. By Wednesday and
Thursday, areas away from the coast will be in the mid 90s to low
100s.

Aviation 27 1848z.

At 18z, the marine layer depth was around 1100 ft. The top of the
marine inversion was around 1950 ft with a temperature of near 23
degrees celsius. There was another inversion above up to around
4000 ft.

North of point conception... Lifr to ifr conditions will spread
into coastal terminals as soon as 03z or as late as 10z.

Conditions will become primarily lifr between 07z and 11z, then
linger through 15z before improving toVFR conditions between 17z
and 18z Friday.

South of point conception... Conditions should remainVFR through
at least 03z, except for a chance of ifr to MVFR conditions at
koxr this afternoon. Otherwise, ifr to MVFR conditions will
spread into coastal terminals between 03z and 13z. Conditions
should improve toVFR between 16z and 19z Friday.

Klax... There is a 70 percent chance of ifr to MVFR conditions
will spread into klax as soon as 06z or as late as 13z.VFR
conditions could delay until 20z Friday, but more likely 17z.

Kbur...VFR conditions are expected throughout the period. There
is a 30 percent chance of ifr to MVFR conditions between 13z and
16z but could occur as soon as 10z.

Marine 27 300 pm.

For the outer waters, moderate-to-high confidence in current
forecast. A small craft advisory remains in effect for the waters
near point arguello and point conception from late this afternoon
through late this evening. There is a 30-40 percent chance that
northwest winds could reach small craft advisory levels each
afternoon through Saturday evening, especially for the northern
outer waters portion.

For the inner waters, high confidence in current forecast. For
all the waters, winds and seas are expected to remain below sca
levels through Monday, except for local small craft advisory level
gusts across the inner waters each afternoon and evening.

A long-period southerly swell will spread into the coastal waters
between Friday night and Saturday, then a moderate-to-
occasionally large swell with a rather long period will affect
the waters from Saturday through weekend. The santa barbara
channel will likely be blocked from the swell energy due to the
channel islands.

Lox watches warnings advisories
Ca... Beach hazards statement in effect from Saturday morning
through Tuesday evening for zones 40-41-87. (see laxcfwlox).

Pz... Small craft advisory in effect until 3 am pdt Friday for zone
673. (see laxmwwlox).

Hazard potential outlook (sun-thu)
a high surf event should peak over the weekend as a long-period
southerly swell arrives at the southern california beaches. High
surf and strong rip currents will occur through the weekend and
probably into late next week.

Public... Thompson
aviation... Hall
marine... Hall
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 4 mi52 min WSW 12 G 14 67°F 71°F1012.1 hPa (-1.4)
46221 - Santa Monica Bay, CA (028) 12 mi52 min 72°F3 ft
PXAC1 17 mi52 min NNW 7 G 8.9
BAXC1 17 mi52 min NNW 7 G 8
PSXC1 18 mi52 min WNW 4.1 G 9.9
PFXC1 19 mi52 min SW 8.9 G 9.9 77°F
PFDC1 19 mi52 min SSW 5.1 G 6
OHBC1 - 9410660 - Los Angeles, CA 19 mi52 min 62°F1011.5 hPa (-1.5)
AGXC1 20 mi52 min WSW 16 G 19 68°F 1011.6 hPa (-1.4)
PRJC1 21 mi52 min WSW 16 G 19
46256 22 mi60 min 67°F2 ft
46222 - San Pedro, CA (092) 25 mi52 min 71°F3 ft
46253 30 mi52 min 71°F3 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 35 mi42 min W 14 G 16 72°F1011.8 hPa

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Los Angeles, Los Angeles International Airport, CA3 mi59 minWSW 1410.00 miMostly Cloudy73°F64°F74%1011.6 hPa
Santa Monica, Santa Monica Municipal Airport, CA5 mi61 minSW 810.00 miA Few Clouds71°F64°F79%1011.6 hPa
Hawthorne, Hawthorne Municipal Airport, CA6 mi59 minW 1210.00 miFair74°F63°F69%1011.7 hPa
Los Angeles / USC Campus Downtown, CA10 mi65 minno data10.00 miFair78°F61°F56%1011.2 hPa
Torrance, Zamperini Field Airport, CA13 mi2.1 hrsWNW 17 G 2210.00 miPartly Cloudy75°F64°F69%1012.2 hPa
Van Nuys, Van Nuys Airport, CA17 mi61 minS 610.00 miFair95°F59°F30%1009.7 hPa
Burbank - Bob Hope Airport, CA17 mi59 minSSE 910.00 miFair88°F57°F36%1009.8 hPa
Long Beach, Long Beach Airport, CA18 mi59 minWNW 810.00 miFair78°F61°F56%1011.4 hPa
Los Angeles, Whiteman Airport, CA21 mi59 minESE 810.00 miClear91°F57°F32%1012.5 hPa
El Monte, CA24 mi64 minSSW 1010.00 miFair88°F59°F38%1011.8 hPa
Los Alamitos Army Airfield, CA24 mi1.9 hrsW 910.00 miMostly Cloudy85°F61°F47%1012.1 hPa

Wind History from LAX (wind in knots)
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Last 24hrW13W12W7W7W7W5W5W5N4NW4W5W4W6SW5W4W8W7W8W10W10W13W16W15W14
1 day agoW14W10W11W7W7W7W5W9W6W7W8W7W5W5W3W4SW7W10W10W15SW16
G19
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2 days agoW9W8W5W7W8W8W6W7W5W6W6W5W5W6W6S9SW6SW7W6W10W12W13W14
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Tide / Current Tables for Santa Monica, California
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Santa Monica
Click for Map
Thu -- 12:14 AM PDT     5.38 feet High Tide
Thu -- 06:02 AM PDT     Sunrise
Thu -- 07:01 AM PDT     0.09 feet Low Tide
Thu -- 10:34 AM PDT     Moonrise
Thu -- 01:39 PM PDT     4.68 feet High Tide
Thu -- 07:21 PM PDT     1.96 feet Low Tide
Thu -- 07:58 PM PDT     Sunset
Thu -- 11:04 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.45.24.63.52.31.20.40.10.31.12.13.24.14.64.74.33.72.92.3222.53.13.8

Tide / Current Tables for King Harbor, Santa Monica Bay, California
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King Harbor
Click for Map
Thu -- 12:19 AM PDT     5.21 feet High Tide
Thu -- 06:02 AM PDT     Sunrise
Thu -- 07:03 AM PDT     0.04 feet Low Tide
Thu -- 10:34 AM PDT     Moonrise
Thu -- 01:42 PM PDT     4.54 feet High Tide
Thu -- 07:24 PM PDT     1.92 feet Low Tide
Thu -- 07:57 PM PDT     Sunset
Thu -- 11:03 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.25.14.53.52.31.10.300.31233.94.44.54.23.62.92.3222.433.7

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 (20,4,5,8)
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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.