Tuesday, June27, 2017 L-36.com


Marine Weather and Tides
Casmalia, 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 5:50AMSunset 8:20PM Tuesday June 27, 2017 10:35 AM PDT (17:35 UTC) Moonrise 8:56AMMoonset 10:31PM Illumination 14% 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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PZZ673 Waters From Pt. Sal To Santa Cruz Island Ca And Westward 60 Nm Including San Miguel And Santa Rosa Islands- 859 Am Pdt Tue Jun 27 2017
.small craft advisory in effect through late tonight...
Today..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 6 ft dominant period 6 seconds. Areas of dense fog with vsby 1 nm or less in the morning.
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Wed..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 5 to 7 ft dominant period 7 seconds. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt with gusts to 30 kt...becoming 10 to 20 kt after midnight. Combined seas 5 to 6 ft dominant period 8 seconds. Patchy fog after midnight.
Thu..NW winds 15 to 25 kt. Gusts to 30 kt in the afternoon. Combined seas 6 to 7 ft dominant period 8 seconds. Patchy fog in the morning.
Thu night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 8 seconds. Patchy fog after midnight.
Fri..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft. Patchy fog.
Sat..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft. Patchy fog.
PZZ600 859 Am Pdt Tue Jun 27 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z...or 8 am pdt...a 1030 mb high was located 900 nm west of seattle while a 1006 mb thermal low was over southeast california. The high will weaken some but move closer to the west coast through the end of the week, with a gusty northwest wind regime persisting.

7 Day Forecast for Marine Location Near Casmalia, CA
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location: 34.7, -121.3     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 271644
afdlox
area forecast discussion
national weather service los angeles oxnard ca
944 am pdt Tue jun 27 2017

Synopsis
High pressure aloft over the region will weaken over the next
several days as an upper-level trough over the pacific northwest
brushes the area. A cooling trend will develop as onshore flow
strengthens and night through morning low clouds return to the
beaches and possibly to the valleys through Thursday.

Short term (tdy-thu)
onshore trends today and a cooler air mass overall will lead to a
cooling trend all areas today and this is already reflected quite
well in the temperature trends this morning. Forecast looks about
right so not planning on any changes at this point. Still looking
good for low clouds filling in at least up to ventura county
tonight as an eddy spins up and the marine lyr deepens.

***from previous discussion***
there will be a little sundowner tonight. It will likely not
produce advisory level gusts. It will keep the stratus away from
the south coast. The rest of the coasts and lower coastal vlys
will see stratus clouds as the result of a decent sized eddy
spinning up.

There will not be too much change over the course of Wed and thu.

At the upper levels the flat flow will turn anti cyclonic as a
small east pac ridge moves closer to the coast. This will create a
few degrees of warming across the interior on Thursday. The strong
onshore gradient will combine with the eddy to bring low clouds to
all the coasts and most of the vlys. There will be a strong
onshore push both Wed and Thu and this will produce slower than
normal clearing across the coasts and vly and no clearing at the
beaches. The clouds and enhanced sea breeze will lead to two days
of blo normal MAX temps for the coasts and vlys.

Long term (fri-mon)
the little ridge peaks Friday morning and then is knocked down by
a little upper trof which will move through and then exit the area
later Saturday afternoon. Weak ill defined flow then sets up over
the state and the jet stream moves north.

Look for a little warming Friday then a little cooling on Saturday
and then two days of persistence Sun and Mon with MAX temps right
near normal.

The night through morning low cloud pattern will persist through
the period as the onshore flow will continue through the period.

The only question mark is how much penetration it will have. The
hgts are rather high and this might limit the inland penetration
of the low clouds.

Aviation 27 1000z...

at 01000z, the marine inversion at klax was based near 500 feet.

The top of the inversion was 2100 feet with a temperature of
29 degrees celsius.

Overall, moderate confidence in 12z TAF package. Current lifr
conditions at ksmx ksbp should dissipate by 17z withVFR
conditions for all sites this afternoon. For tonight, high
confidence in return of stratus fog to ksmx ksbp, but only
moderate confidence in timing. For sites south of point
conception, moderate confidence in return of ifr conditions to
coastal TAF sites, but low confidence in timing (could be
+ - 3 hours of current forecasted arrival time).

Klax... Moderate confidence in 12z taf. High confidence inVFR
through this evening. For tonight, moderate confidence in return
of ifr conditions, but low confidence in timing (+ - 3 hours of
current 08z forecast).

Kbur... High confidence in 12z taf. There is a 10-15% chance of
MVFR vsbys after 10z.

Marine 27 900 am.

High confidence in small craft advisory (sca) conditions from the
central coast to san nicolas island through at least Friday, and
will extended the current scy each day. Moderate confidence in
low end scy conditions over the santa barbara channel this
afternoon and tonight. There will be lulls each morning within 10
miles from the coast.

Two distinct wave types will be observable over the waters, and a
short period (6-8 second) west swell and or wind wave. The buoys
will likely highlight the long period swell at times, but the
short period swell will be most noticeable and will be highlighted
in the forecast. By the middle to end of the week, the short-
period west swell will dominate as the south swell fades.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect from 3 pm this afternoon to 3
am pdt Wednesday for zones 645-650. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Wednesday for
zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (thu-mon)
no significant hazards expected.

Public... Mw rorke
aviation... Thompson
marine... Kittell
synopsis... B hall
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 19 mi36 min 60°F5 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi46 min NW 16 G 19 57°F 58°F4 ft1014.9 hPa (+0.4)
46218 - Harvest, CA (071) 32 mi36 min 56°F5 ft
46257 34 mi36 min 55°F5 ft
PTGC1 - Point Arguello, CA 36 mi36 min N 24 G 26 55°F 1014.7 hPa (+0.8)
46215 - Diablo Canyon, CA (076) 42 mi46 min 59°F3 ft
PSLC1 - 9412110 - Port San Luis, CA 43 mi48 min SSE 7 G 8 57°F 58°F1015.7 hPa

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Vandenberg Air Force Base, CA39 mi98 minN 63.00 miLight Drizzle Fog/Mist55°F55°F100%1015.1 hPa

Wind History from VBG (wind in knots)
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1 day agoN11N13NW14N12NW11N13N12N14
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N9N10N7N5N4CalmE3E3CalmCalmCalmN3SE3NW3N7N12
2 days agoN12N12
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Tide / Current Tables for Point Arguello, California
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Point Arguello
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Tue -- 12:20 AM PDT     5.70 feet High Tide
Tue -- 05:52 AM PDT     Sunrise
Tue -- 07:30 AM PDT     -1.04 feet Low Tide
Tue -- 09:53 AM PDT     Moonrise
Tue -- 02:26 PM PDT     4.23 feet High Tide
Tue -- 07:23 PM PDT     2.24 feet Low Tide
Tue -- 08:19 PM PDT     Sunset
Tue -- 11:28 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.75.64.93.72.30.8-0.3-1-1-0.40.61.82.93.84.24.23.83.22.62.32.32.73.44.1

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Tue -- 12:09 AM PDT     6.01 feet High Tide
Tue -- 05:52 AM PDT     Sunrise
Tue -- 07:27 AM PDT     -0.97 feet Low Tide
Tue -- 09:54 AM PDT     Moonrise
Tue -- 02:15 PM PDT     4.20 feet High Tide
Tue -- 07:11 PM PDT     2.31 feet Low Tide
Tue -- 08:19 PM PDT     Sunset
Tue -- 11:28 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.853.72.20.8-0.3-0.9-0.9-0.30.71.933.84.24.13.63.12.62.32.42.93.64.5

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 (13,3,4,5)
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Ground Weather Radar Station Vandenberg AFB, 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.