Thursday, February22, 2018 L-36.com


Marine Weather and Tides
Cayucos, 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 6:38AMSunset 5:53PM Thursday February 22, 2018 2:48 PM PST (22:48 UTC) Moonrise 10:55AMMoonset 12:00AM Illumination 52% Phase: First Quarter Moon; Moon at 8 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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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 211 Pm Pst Thu Feb 22 2018
.small craft advisory in effect through Friday evening...
Tonight..NW winds 15 to 25 kt with local gusts to 30 kt. Combined seas 8 to 10 ft dominant period 11 seconds. Slight chance of showers in the evening.
Fri..NW winds 15 to 25 kt. Combined seas 8 to 10 ft dominant period 10 seconds.
Fri night..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming N 5 to 10 kt. Combined seas 8 to 10 ft dominant period 11 seconds, subsiding to 7 to 8 ft dominant period 16 seconds after midnight.
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 5 to 6 ft at 15 seconds.
Sat night..NW winds 20 to 25 kt with gusts to 35 kt in the evening, becoming N 10 to 20 kt. Combined seas 7 to 9 ft dominant period 15 seconds.
Sun..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 6 ft.
Sun night..NW winds 15 to 20 kt with gusts to 25 kt in the evening, becoming 10 to 15 kt. Wind waves 2 to 4 ft. NW swell 6 to 7 ft.
Mon..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 7 to 9 ft. Slight chance of showers.
Tue..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 8 to 10 ft. Slight chance of showers.
PZZ600 211 Pm Pst Thu Feb 22 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 21z...or 1 pm pst...a 1041 mb high was 800 nm W of seattle and a 1014 mb low was over western nv. The low will move S and help to increase the nw flow over the coastal waters, with moderate to strong winds expected tonight through Friday night.

7 Day Forecast for Marine Location Near Cayucos, CA
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location: 35.43, -120.88     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 222124
afdlox
area forecast discussion
national weather service los angeles oxnard ca
124 pm pst Thu feb 22 2018

Synopsis 22 727 am.

An upper trough tracking to the northeast of the region will
bring a slight chance of rain showers with low elevation snow
showers this afternoon through early Friday, along with cool and
breezy conditions. Dry and cool weather is expected over the
weekend. Another trough may bring more widespread rain to the
region late Monday through Tuesday night or early wed, with a more
significant storm later in the week.

Short term (tdy-sun) 22 115 pm.

A trough to our north will slide south into nevada early Friday
with the axis moving east of our area around noon Friday. Its
trajectory is similar to many of the previous systems meaning very
little rainfall and more in the way of gusty north to northwest
winds and cool temperatures. There will be some rain chances with
it, mainly central coast, northern mountains, including the
grapevine, and eastern la county, but amounts mostly under a tenth
of an inch.

Snow levels will be quite low, mostly 3000-4000 feet, locally
lower at times. Light accumulations are possible over the
grapevine on interstate 5 late tonight and early Friday, possibly
up to 2".

Gusty west to northwest winds today will shift to north and
northeast late Friday into Saturday leading to a significant
drying trend. The cold and dry air mass will lead to some very
cold overnight low temperatures Saturday morning, especially in
wind protected locations.

Heights will be rebounding somewhat over the weekend for slightly
warmer temperatures and clear skies. By Sunday highs will be back
up to near normal levels.

Long term (mon-thu) 22 122 pm.

Yet another trough will arrive late Monday and this one has been
trending a little farther west than previous troughs and does have
a little more moisture going for it. Not much, but enough to
possibly generate more widespread precipitation, though low level
winds are still mostly from the west to northwest which isn't
favorable for any sort of orographic enhancement. So at this point
still looking like a light precip event ending Tuesday afternoon.

Then dry weather weather and slightly warmer Wednesday into early
Thursday before what could be a much stronger system late Thu and
fri. This one is cold and has much better over water trajectory as
the gulf of alaska high finally shifts more to the west and
provides a farther west start to some of these troughs coming
south. Still some uncertainty with the ensembles still showing a
fair amount of spread in the solutions, but both the operational ecmwf
and GFS have been pretty consistent the last couple days
suggesting a stronger system late next week.

Aviation 22 1758z.

At 1730z, there was no inversion present at klax.

Generally hi confidence in the 18z tafs.VFR conditions are expected
at all the airfields through Fri morning, altho someVFR CIGS should
affect several of the airfields at times this afternoon and tonight.

There may also be a few showers around the region mainly this
evening. There will be gusty W to NW winds at many airfields this
afternoon into the evening, with low level wind shear possible at
times this evening at ksba due to gusty N canyon winds in the
vicinity.

Klax... Generally hi confidence in the 18z taf.VFR conditions are
expected through Fri afternoon, altho there is a 30 percent chance
ofVFR CIGS at times this afternoon and tonight with isolated
showers in the vicinity. There will also be gusty W to NW winds this
afternoon through Friday.

Kbur... Generally hi confidence in the 18z taf.VFR conditions are
expected through Fri morning, altho there is a 30 percent chance of
vfr CIGS at times this afternoon and tonight with isolated showers
in the vicinity.

Marine 22 110 pm.

For the outer waters, moderate confidence in current forecast.

Northwest winds will increase through early this evening with 70%
chance of widespread gale force winds tonight through Friday
evening. A gale warning is in effect for the outer waters during
the period. From later Friday night through Tuesday, there is a
70% chance of small craft advisory (sca) level winds continuing
with a 40% chance of gale force winds Saturday afternoon night and
again on Tuesday.

For the inner waters, moderate confidence in current forecast.

For the waters north of point sal, SCA level winds are likely (70%
chance) at times tonight through Tuesday, especially during the
afternoon and evening hours. There is also a 30% chance of gale
force winds Saturday night. For the waters south of point
conception, there is a 70% chance of SCA level winds tonight
through Saturday night, especially across western portions. After
a lull on Sunday, SCA level winds are likely again on Monday and
Tuesday.

Lox watches warnings advisories
Ca... Wind advisory in effect until 9 pm pst this evening for zones
34-35. (see laxnpwlox).

Wind advisory in effect until 4 am pst Friday for zones
39-52. (see laxnpwlox).

Wind advisory in effect from 10 pm this evening to 10 am pst
Friday for zone 53. (see laxnpwlox).

Wind advisory in effect until 10 am pst Friday for zone 54. (see laxnpwlox).

Wind advisory in effect until 10 pm pst this evening for zone
59. (see laxnpwlox).

Pz... Small craft advisory in effect until 3 am pst Friday for
zones 645-650-655. (see laxmwwlox).

Gale warning in effect until 3 am pst Friday for zones
670-673-676. (see laxmwwlox).

Hazard potential outlook (sun-thu)
Low elevation snow possible Monday night into Tuesday creating
hazardous driving conditions in the mountains, especially the i5
corridor area.

Public... Mw
aviation... Sirard
marine... Sirard
synopsis... Jll
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 16 mi52 min 58°F6 ft
PSLC1 - 9412110 - Port San Luis, CA 19 mi49 min W 13 G 22 53°F 55°F1024.8 hPa (-1.5)
CPXC1 19 mi37 min W 18 G 22 52°F 1024.1 hPa36°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 34 mi59 min NW 19 G 23 51°F 55°F8 ft1024.3 hPa (-1.2)

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA18 mi53 minWNW 15 G 2110.00 miFair56°F35°F46%1023.7 hPa
Paso Robles Municipal Airport, CA22 mi56 minno data10.00 miFair55°F30°F40%1022.2 hPa

Wind History from SBP (wind in knots)
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Last 24hrNW14NW16NW13NW9NW8W3W5W4CalmCalmSE3E5SE5CalmCalmE6E3CalmCalmCalmNW12W16W16
G22
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1 day agoNW16NW17NW17
G24
NW10NW7NW5NW3CalmCalmNW5SE3E3CalmCalmSE3SE3E3CalmCalmCalmW35W11NW16
2 days agoW18
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NW16NW9NW6NW5NW6W7SW6W3W5W5W7W5CalmNW9CalmN9NW10NW9N8NW12NW18

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
Click for Map
Thu -- 02:17 AM PST     4.36 feet High Tide
Thu -- 06:41 AM PST     Sunrise
Thu -- 09:32 AM PST     1.14 feet Low Tide
Thu -- 10:55 AM PST     Moonrise
Thu -- 03:34 PM PST     2.74 feet High Tide
Thu -- 05:52 PM PST     Sunset
Thu -- 08:25 PM PST     1.89 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.64.14.34.33.93.32.621.41.21.21.41.82.22.52.72.72.62.32.11.91.92.22.6

Tide / Current Tables for Avila, California
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Avila
Click for Map
Thu -- 02:16 AM PST     2.08 feet High Tide
Thu -- 06:41 AM PST     Sunrise
Thu -- 09:27 AM PST     -1.70 feet Low Tide
Thu -- 10:54 AM PST     Moonrise
Thu -- 03:25 PM PST     0.46 feet High Tide
Thu -- 05:52 PM PST     Sunset
Thu -- 08:33 PM PST     -0.90 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.82.121.60.90-0.8-1.4-1.7-1.7-1.3-0.8-0.20.20.40.40.2-0.2-0.6-0.9-0.9-0.6-0.1

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 (17,4,5,8)
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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.