Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Simi Valley, 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 7:36PM Sunday August 20, 2017 5:57 PM PDT (00:57 UTC) Moonrise 5:06AMMoonset 7:03PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 217 Pm Pdt Sun Aug 20 2017
Tonight..SW winds 10 kt in the afternoon...becoming variable 10 kt or less. Wind waves 2 ft or less in the evening, then...becoming 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 3 ft at 13 seconds. Patchy fog in the afternoon. Patchy fog after midnight.
Mon..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 10 seconds and S 2 ft at 13 seconds. Patchy fog in the morning.
Mon night..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 ft at 12 seconds.
Tue..NW winds 5 to 10 kt...becoming W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 12 seconds.
Tue night..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 12 seconds.
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 and S 3 ft.
Wed 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 and S 2 ft.
Thu..SW winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft. Patchy fog.
Fri..SW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft. Patchy fog.
PZZ600 217 Pm Pdt Sun Aug 20 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 19z...or 12 pm pdt...a 1027 mb surface high was about 600 nm W of eureka and a 1005 mb low was near las vegas.

7 Day Forecast for Marine Location Near Simi Valley, CA
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location: 34.27, -118.8     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 202352
afdlox
area forecast discussion
national weather service los angeles oxnard ca
452 pm pdt Sun aug 20 2017

Synopsis
Possible afternoon and evening showers and thunderstorms into
Monday for the mountains of ventura and santa barbara. A low will
bring local drizzle into Monday morning, with overnight low clouds
and fog into next week. The temperatures will be near normal into
Thursday, then a warmup on Friday and the weekend as a high moves
in.

Short term (tdy-wed)
a trough of low pressure and upper low centered near pt
conception will move very little through Wednesday, though it will
weaken and fill slightly Tue into wed. There are some CU buildups
over the sb ventura mountains again today but not as much
vertical development as yesterday and so far it's not looking
promising for thunderstorm development.

There are conflicting signals for tomorrow as far as temps marine
lyr coverage go. While there is some cooling aloft and a little
pva the models also show a 2mb offshore pressure gradient trend.

Overall expecting not much change from today in either temps or
sky coverage. Could still see some isolated drizzle around,
especially near the foothills but it's not looking quite as
favorable as it once did. Convective parameters look even less
favorable than today so if nothing develops today it's very
unlikely anything will on Monday.

With the upper low weakening Tue and Wed expect temps to start
climbing, especially inland, with less overnight marine lyr
coverage and earlier clearing times.

Long term (thu-sun)
inland warming trend expected to continue into next weekend as
high pressure returns and onshore gradients weaken. Could see
warmer valley highs reaching triple digits by the weekend,
especially Sunday with weak offshore flow possible in the morning.

Coastal areas also expected to see some warm up by Sunday. Today's
model runs didn't suggest any return of monsoon moisture through
early next week, though this could change as the door is open for
some should a source develop.

Aviation 20 2345z
at 0930z at klax, the marine layer depth was near 2400 feet. The
top of the inversion was 3100 feet with a temperature of 19
degrees celsius.

Low clouds lingering this afternoon across much of the central
coast and will advance inland quickly this evening, reaching kprb
overnight. South of point conception, low clouds have generally
cleared well off the coast, except a few patches across la ventura
coastal areas. Less confidence in arrival of low clouds tonight
for TAF locations south of point conception, but have trended
back arrival times based on latest satellite and model trends.

Klax... Have delayed onset of MVFR CIGS at klax in latest taf
based on latest satellite model trends. However, there is fairly
low confidence in arrival time, and could see + - 3 hours from
07z indicated in taf.

Kbur... Have delayed onset of MVFR CIGS at kbur in latest taf
based on latest satellite model trends. However, there is fairly
low confidence in arrival time, and could see + - 2 hours from
12z indicated in taf. Thee is a 20 percent chance that CIGS could
lower to ifr category.

Marine 20 230 pm
outer waters... High confidence in forecast. Winds and seas will
remain below small craft advisory (sca) levels through Tuesday. On
Wednesday and Thursday, SCA level winds are likely.

Inner waters... High confidence in forecast. For the waters north
of point sal, winds and seas will remain below SCA levels through
Tuesday. On Wednesday and Thursday, SCA level winds are likely
each afternoon and evening. For the waters south of point conception,
winds and seas are expected to remain below SCA levels through
Thursday.

Lox watches warnings advisories
Ca... Beach hazards statement in effect until midnight pdt tonight
for zones 40-41. (see laxcfwlox).

Pz... None.

Hazard potential outlook (wed-sun)
no significant hazards expected.

Public... Mw
aviation... Gomberg
marine... Rorke
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 24 mi45 min W 14 G 16 67°F 72°F1012.2 hPa
46221 - Santa Monica Bay, CA (028) 30 mi27 min 71°F3 ft
46217 - Anacapa Passage, CA (111) 34 mi27 min 68°F2 ft
46025 - Santa Monica Basin - 33NM West Southwest of Santa Monica, CA 38 mi67 min WSW 7.8 G 12 71°F2 ft1011.8 hPa
PSXC1 46 mi39 min SW 9.9 G 13
OHBC1 - 9410660 - Los Angeles, CA 47 mi39 min 68°F1012.1 hPa
NTBC1 - Santa Barbara, CA - 9411340 48 mi81 min SW 8.9 G 9.9 67°F 1012.1 hPa
PFXC1 48 mi39 min WSW 11 G 12 73°F
PRJC1 49 mi39 min WSW 14 G 16

Wind History for Santa Monica, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Camarillo, Camarillo Airport, CA16 mi62 minSW 1010.00 miA Few Clouds72°F60°F66%1012.7 hPa
Van Nuys, Van Nuys Airport, CA17 mi66 minSE 910.00 miFair83°F57°F43%1009.8 hPa
Point Mugu, Naval Air Warfare Center, CA20 mi61 minSW 1010.00 miMostly Cloudy70°F59°F68%1012.5 hPa
Oxnard, Oxnard Airport, CA22 mi66 minSW 710.00 miFair68°F46°F47%1012 hPa
Burbank - Bob Hope Airport, CA24 mi64 minS 910.00 miFair80°F57°F47%1009.8 hPa

Wind History from CMA (wind in knots)
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Last 24hrW9W7SW5W5W6W4W3SW3SW4SW4SW4W4CalmCalmCalmSE5CalmSW7S6S11SW10SW11S9SW10
1 day agoW8W8W4W4W3N3CalmCalmCalmCalmCalmCalmCalmCalmS3CalmSW3SW6W8SW9SW11
G17
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2 days agoW9W7W5W3W4CalmCalmCalmCalmCalmCalmE3CalmCalmCalmCalmSW6SW8SW6SW9W8SW8W10W12

Tide / Current Tables for Mugu Lagoon (ocean pier), California
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Mugu Lagoon (ocean pier)
Click for Map
Sun -- 03:23 AM PDT     -0.89 feet Low Tide
Sun -- 05:07 AM PDT     Moonrise
Sun -- 06:21 AM PDT     Sunrise
Sun -- 09:37 AM PDT     4.63 feet High Tide
Sun -- 03:01 PM PDT     1.46 feet Low Tide
Sun -- 07:03 PM PDT     Moonset
Sun -- 07:36 PM PDT     Sunset
Sun -- 09:02 PM PDT     6.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.61-0.2-0.8-0.701.32.73.84.54.64.13.32.41.71.51.82.63.95.16.16.56.25.2

Tide / Current Tables for Port Hueneme, California
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Port Hueneme
Click for Map
Sun -- 03:25 AM PDT     -0.93 feet Low Tide
Sun -- 05:07 AM PDT     Moonrise
Sun -- 06:22 AM PDT     Sunrise
Sun -- 09:44 AM PDT     4.73 feet High Tide
Sun -- 03:03 PM PDT     1.52 feet Low Tide
Sun -- 07:04 PM PDT     Moonset
Sun -- 07:37 PM PDT     Sunset
Sun -- 09:09 PM PDT     6.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.71.1-0.2-0.9-0.8-01.22.63.84.64.74.33.52.61.81.51.82.63.95.26.26.76.45.5

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 (20,4,5,8)
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Ground Weather Radar Station Los Angeles, 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.