Friday, May26, 2017 L-36.com


Marine Weather and Tides
Guadalupe, CA

Version 3.4
What's New / NOTES
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 8:07PM Thursday May 25, 2017 10:26 PM PDT (05:26 UTC) Moonrise 5:07AMMoonset 7:13PM Illumination 0% Phase: New Moon; Moon at 1 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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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 829 Pm Pdt Thu May 25 2017
Tonight..Winds variable 10 kt or less. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds.
Fri..Winds variable 10 kt or less. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds.
Fri night..Winds variable 10 kt or less...becoming nw 5 to 10 kt after midnight. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds.
Sat..Winds variable 10 kt or less...becoming nw 10 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 3 to 4 ft at 9 seconds.
Sat night..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 5 to 6 ft dominant period 10 seconds.
Sun..NW winds 15 to 20 kt...becoming 20 to 30 kt in the afternoon. Combined seas 5 to 6 ft dominant period 9 seconds.
Sun night..NW winds 20 to 30 kt. Combined seas 5 to 6 ft dominant period 7 seconds. Patchy fog after midnight.
Mon..NW winds 20 to 30 kt. Combined seas 7 to 9 ft. Patchy fog.
Tue..NW winds 15 to 25 kt with gusts to 35 kt. Combined seas 7 to 9 ft. Patchy fog.
PZZ600 829 Pm Pdt Thu May 25 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...a 995 mb low was over southern nevada while a 1028 mb high was centered 700 nm west of seattle. This pattern will change little through Friday, then a 1025 mb high will form quickly 500 nm west of point conception over the weekend as a 1007 mb thermal low settles into southwest arizona.

7 Day Forecast for Marine Location Near Guadalupe, CA
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location: 34.74, -121.36     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 260418
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
918 pm pdt Thu may 25 2017

Synopsis
A low pressure system over the region will push the marine
layer farther inland along with below normal temperatures and
possible precipitation through Saturday. A high pressure system
will build in over the weekend to push the marine layer back to
the coast with above normal temperatures for early next week.

Another low pressure system may approach near midweek for
increasing clouds and cooling trend.

Short term (thu-sun)
a weak upper-level trough of low pressure currently centered over
the southern california bight will move east into the los angeles
county later tonight and into the lower colorado river basin by
Friday morning. A strong onshore flow and deep marine layer in
place will continue a cool and cloudy weather pattern into Friday.

The deep marine layer could interact with the upper-level dynamics
to squeeze out drizzle or light showers through Friday morning. A
weak warm air advective pattern does develop later tonight in the
lower levels, possibly producing light rain or rain showers
across the southland. Pops have been nudged higher for tonight and
Friday morning and mentions of isolated showers have been
expanded across the south coast basin.

A wind advisory for the san luis obispo county valleys was allowed
to expire at 9 pm this evening, but extended for the antelope
valley through 9 am Friday. There is a decent chance that this
advisory could be extended for the antelope valley through Friday
evening as strong southwest winds could linger.

The marine layer depth currently near 3700 feet deep could deepen
slightly overnight and push stratus clouds into the antelope
valley around daybreak Friday. Some clouds have been introduced
into the antelope valley for Friday morning, but there is a chance
that the cloudiness mentioned could be well underdone.

*** from previous discussion ***
with the inversion continuing to weaken tomorrow there's a chance
that we could see a reverse clearing pattern Friday where it
stays cloudy inland but clears better towards the coast.

Warming aloft will begin Saturday behind the trough passage but
the marine lyr should still be at least 3000' deep. Better
clearing expected Saturday as the ridge builds aloft and onshore
gradients weaken. Temps will warm around 5 degrees most areas.

The warming trend will continue Sunday as the ridge continues to
build over the west coast. Inland highs expected to climb around
10 degrees from Saturday's levels and coastal areas warming 2-5
degrees.

Long term (mon-thu)
warming trend to continue at least into Monday before the ridge
starts to shift east ahead of an advancing trough over the eastern
pacific. Both the GFS and ECMWF split off some energy from the
trough and develop a closed low circulation over NRN baja late
Tuesday into Wednesday. So probably one more day of either similar
or slightly warmer temps Tuesday and then cooling by Wednesday
with the upper low. Again there is no moisture with this low but
it will deepen the marine lyr and cool things off slightly for the
latter half of the week. Nothing like what we're seeing now but at
least back to near normal temps.

Aviation 25 0000z.

At 00z, the marine inversion at klax was 4200 feet deep. The top
of the inversion was 6500 feet with a temperature of 15 degrees
celsius.

Low-to-moderate confidence in the current forecast. Ceilings at
or below 5000 feet reforming through 04z will deteriorate to MVFR
conditions through 08z and continue through at least 14z.VFR
conditions with ceilings below 5000 feet will likely linger
through at least 16z, but more likely through 18z-20z. There is a
chance of MVFR conditions at kpmd between 10z and 14z.

Klax and kbur... Ceilings at or below 5000 feet will reform between
02z and 04z, then deteriorate to the MVFR category through 08z.

MVFR conditions will likely continue through at least 14z or as
late as 16z. MVFR toVFR conditions with ceilings below 5000 feet
will likely linger through at least 16z, but more likely through
18z-20z.

Marine 25 900 pm.

High confidence sub-small craft advisory conditions through
Friday. Gusty northwest winds should reform over the weekend... With
small craft advisory level winds developing from the central
coast to san nicolas island and short period seas likely for
the santa barbara channel and santa monica basin. There is a 30
percent chance for small craft advisory conditions over the
western half of the santa barbara channel on Saturday afternoon
and evening, increasing to 60 percent on Sunday afternoon and
evening.

Lox watches warnings advisories
Ca... Wind advisory in effect until 9 am pdt Friday for zone 59. (see laxnpwlox).

Pz... None.

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

Public... Hall mw
aviation... Hall
marine... Hall
synopsis... Stu
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46259 16 mi26 min 57°F7 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 23 mi36 min Calm G 1.9 55°F 55°F5 ft1012.3 hPa (+1.4)
46218 - Harvest, CA (071) 36 mi26 min 56°F6 ft
46257 38 mi26 min 56°F5 ft
PTGC1 - Point Arguello, CA 39 mi26 min SSE 2.9 G 5.1 55°F 1012.8 hPa (+1.7)
HRVC1 41 mi38 min 1012.1 hPa
46215 - Diablo Canyon, CA (076) 42 mi36 min 54°F5 ft
PSLC1 - 9412110 - Port San Luis, CA 44 mi38 min S 2.9 G 8 56°F 55°F1013.1 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, CA42 mi28 minN 010.00 miOvercast55°F54°F98%1012.8 hPa

Wind History from VBG (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmSW3CalmSE4CalmSW6SW7S5SW8SW12SW11SW14
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1 day agoCalmCalmCalmN3N5N4NW7N8NW5NW7N6N64N5CalmN10NW7W10W7NW6NW5NW3N3Calm
2 days agoN6N4N5N5CalmCalmCalmCalmN4CalmCalmW7W8W9NW9NW8NW10NW10N8NW9NW7N7N5Calm

Tide / Current Tables for Point Arguello, California
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Point Arguello
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Fri -- 05:14 AM PDT     -1.53 feet Low Tide
Fri -- 05:53 AM PDT     Sunrise
Fri -- 06:57 AM PDT     Moonrise
Fri -- 11:52 AM PDT     3.90 feet High Tide
Fri -- 04:38 PM PDT     1.66 feet Low Tide
Fri -- 08:06 PM PDT     Sunset
Fri -- 09:17 PM PDT     Moonset
Fri -- 10:55 PM PDT     6.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
53.61.90.2-1-1.5-1.3-0.60.61.933.73.93.632.21.81.72.134.15.15.96.2

Tide / Current Tables for Oil Platform Harvest (Topex Project), California
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Oil Platform Harvest (Topex Project)
Click for Map
Fri -- 05:11 AM PDT     -1.49 feet Low Tide
Fri -- 05:53 AM PDT     Sunrise
Fri -- 06:57 AM PDT     Moonrise
Fri -- 11:39 AM PDT     3.93 feet High Tide
Fri -- 04:29 PM PDT     1.66 feet Low Tide
Fri -- 08:06 PM PDT     Sunset
Fri -- 09:17 PM PDT     Moonset
Fri -- 10:47 PM PDT     6.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.23.61.80.2-1-1.5-1.3-0.40.82.13.23.83.93.52.82.11.71.72.23.24.45.56.36.5

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 (1,6,7,8)
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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.