Wednesday, May22, 2019 L-36.com


Marine Weather and Tides
Los Osos, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:52AMSunset 8:06PM Wednesday May 22, 2019 5:54 PM PDT (00:54 UTC) Moonrise 10:53PMMoonset 8:08AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 222 Pm Pdt Wed May 22 2019
.small craft advisory in effect through late tonight...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 10 to 12 ft dominant period 12 seconds.
Thu..W winds 10 to 15 kt, becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 8 to 10 ft at 11 seconds. Slight chance of showers in the morning.
Thu night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 6 to 8 ft at 11 seconds.
Fri..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 5 to 6 ft at 10 seconds.
Fri night..NW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds.
Sat..Winds variable 10 kt or less, becoming W 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft.
Sat night..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft. Slight chance of showers after midnight.
Sun..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft. Chance of showers.
Mon..NW winds 15 to 20 kt. Combined seas 5 to 6 ft.
PZZ600 222 Pm Pdt Wed May 22 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z, or 1 pm pdt, a 1028 mb high was 600 nm west of eureka and a 1004 mb low was near las vegas.


7 Day Forecast for Marine Location Near Los Osos, CA
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location: 35.33, -120.84     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 230051
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
551 pm pdt Wed may 22 2019

Synopsis 22 1203 pm.

Skies will be partly to mostly cloudy today with a chance of
showers mainly across the interior and a slight chance of
thunderstorms. A cool, showery, and unsettled weather pattern
will continue through the week and into early next week as a broad
trough of low pressure remains over the region.

Short term (tdy-sat) 22 210 pm.

Isolated thunderstorms developing over la ventura counties this
afternoon as a cold upper trough moves south through the area.

Lots of reports of small hail and brief heavy rain. Showers and
thunderstorms expected to taper off later this afternoon and
early evening as the cold air shifts to the south and east and we
lose the daytime heating.

Another impulse is expected to come through Thursday with the
best chances for showers over the mountains as we shift from a
northerly flow to a south and southwest flow. But light showers
are possible in the morning along the central coast and south of
pt conception as well. Temps will remain several degrees below
normal with plenty of clouds and possible showers.

Warmer and sunnier weather on tap for most areas Fri Sat in
between trough passages. Clouds will be on the increase from the
west Saturday as the next trough approaches. And there is a chance
of showers over the mountains, especially ventura county Saturday
afternoon.

Long term (sun-wed) 22 223 pm.

Confidence is growing that we will see some additional
precipitation late this weekend as another upper low drops south
along the west coast. It's taking an inside track so moisture is
an issue but most of the model solutions support at least some
light (under a tenth of an inch) precip over much of the area
Sunday.

The upper low is expected to lift northeast Sunday night with
decreasing clouds and shower chances. At this point Monday-
Wednesday looks dry and warmer with a weak ridge developing over
california. The ECMWF isn't quite as robust with the ridging but
all models are dry and at least slightly warmer through the
period.

Aviation 23 0050z.

At 2320z at klax, there was no marine layer nor a sfc based
inversion.

Low confidence in non desert tafs. There is a 40 percent chc that
low clouds will not form overnight. If low clouds do form there is
low confidence in timing and cig hgts. If low clouds do form there
is a 30 percent chc that there will be sct conds after 20z.

Klax... Low confidence in taf. There is a 40 percent chc that low
clouds will not form overnight. If low clouds do form there is low
confidence in timing and cig hgts. If low clouds do form there is
a 30 percent chc that there will be sct conds after 20z. There is
a 30 percent chc of an 9 kt east wind component 10z-16z.

Kbur... Low confidence in taf. There is a 40 percent chc that low
clouds will not form overnight. If low clouds do form there is low
confidence in timing and cig hgts. If low clouds do form there is
a 30 percent chc that there will be sct conds after 20z.

Marine 22 924 am.

For the outer waters, high confidence in current forecast. Both
winds and seas will remain at small craft advisory (sca) levels
today and tonight. On Thursday, the winds and seas will begin to
diminish, dropping below SCA levels. For Friday through Sunday,
winds and seas will remain below SCA levels.

For the inner waters north of point sal, high confidence in
current forecast. Winds will reach SCA levels this afternoon and
evening while seas remain at SCA levels through tonight. On
Thursday, winds and seas will drop below SCA levels with
conditions remaining below SCA levels through Sunday.

For the inner waters south of point conception, high confidence in
current forecast. Winds will remain at SCA levels through tonight.

For Thursday through Sunday, winds and seas are expected to
remain below SCA levels.

For today, a cold and unstable air mass will bring the threat of
isolated thunderstorms to all coastal waters. Gusty and erratic
winds, steep short-period seas, brief heavy rain and lightning
will be potential threats.

Beaches 22 1145 am.

Another large northwest swell will move through the coastal
waters today. High surf is expected along west and northwest
facing beaches across the central coast and a high surf advisory
remains in effect through tonight.

South of point conception, a recent observation in ventura county
has exceeded high surf advisory critera, so there may soon be an
update to include higher forecast breakers and a high surf
advisory for ventura county. A beach hazards statement remains in
effect for the beaches of los angeles county through tonight.

Lox watches warnings advisories
Ca... High surf advisory in effect until 5 am pdt Thursday for
zones 34-35-40. (see laxcfwlox).

Beach hazards statement in effect until 5 am pdt Thursday for
zone 41. (see laxcfwlox).

Pz... Small craft advisory in effect until 3 am pdt Thursday for
zones 645-650-655-670-673-676. (see laxmwwlox).

Hazard potential outlook (sat-wed)
No significant hazards expected.

Public... Mw
aviation... Rorke
marine... Sweet rat
beaches... Sweet rat
synopsis... Stewart
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 9 mi54 min 53°F9 ft
CPXC1 12 mi54 min NW 20 G 23 62°F 1009.4 hPa (+0.0)47°F
PSLC1 - 9412110 - Port San Luis, CA 12 mi66 min NW 17 G 25 62°F 52°F1009.4 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 28 mi64 min WNW 16 G 19 57°F 55°F12 ft1009.4 hPa (-0.4)

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, CA12 mi58 minNW 1810.00 miFair and Breezy63°F48°F60%1009.2 hPa

Wind History from SBP (wind in knots)
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Last 24hrNW18
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NW14NW15NW12NW7NE3NW5NW74CalmCalmCalmN5CalmNW5W7NW13NW15NW13NW18NW18
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1 day agoNW15
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NW10NW11NW6CalmCalmCalmCalmCalmSE4S4CalmW5W13
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2 days agoNW10NW7NW3CalmW3CalmCalmNE3CalmCalmCalmCalmCalmE4CalmNW343NW10NW8
G15
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Tide / Current Tables for Morro Bay, California
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Morro Bay
Click for Map
Wed -- 01:00 AM PDT     4.66 feet High Tide
Wed -- 05:54 AM PDT     Sunrise
Wed -- 08:45 AM PDT     -0.13 feet Low Tide
Wed -- 09:08 AM PDT     Moonset
Wed -- 03:27 PM PDT     2.83 feet High Tide
Wed -- 07:24 PM PDT     2.56 feet Low Tide
Wed -- 08:06 PM PDT     Sunset
Wed -- 11:53 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.54.74.53.932.11.20.5-0-0.10.20.81.52.12.62.82.82.72.62.62.62.73.13.5

Tide / Current Tables for Port San Luis, California
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Port San Luis
Click for Map
Wed -- 12:05 AM PDT     5.30 feet High Tide
Wed -- 05:54 AM PDT     Sunrise
Wed -- 07:41 AM PDT     -0.69 feet Low Tide
Wed -- 09:08 AM PDT     Moonset
Wed -- 02:52 PM PDT     3.53 feet High Tide
Wed -- 06:49 PM PDT     2.86 feet Low Tide
Wed -- 08:05 PM PDT     Sunset
Wed -- 11:52 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.35.14.53.42.210-0.6-0.7-0.30.51.42.333.43.53.43.12.92.933.43.94.4

Weather Map and Satellite Images
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GOES Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Los Angeles/Oxnard, CA (20,4,5,8)
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Ground Weather Radar Station Vandenberg AFB, CA
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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.