Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Pismo Beach, 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 7:00AMSunset 7:17PM Saturday March 23, 2019 8:02 AM PDT (15:02 UTC) Moonrise 9:33PMMoonset 8:01AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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- 301 Am Pdt Sat Mar 23 2019
.small craft advisory for hazardous seas in effect from 6 am pdt this morning through Sunday morning...
Today..S winds 5 to 10 kt, becoming nw 10 to 20 kt with local gusts to 25 kt in the afternoon. Wind waves 1 to 3 ft. W swell 9 to 11 ft at 16 seconds. Showers likely in the morning.
Tonight..NW winds 10 to 20 kt with local gusts to 25 kt in the evening, becoming N 10 to 15 kt. Wind waves 1 to 3 ft. W swell 10 to 12 ft at 15 seconds.
Sun..N winds 5 to 15 kt, becoming W in the afternoon. Wind waves 2 ft or less. W swell 9 to 10 ft at 15 seconds, subsiding to 7 to 8 ft at 15 seconds in the afternoon.
Sun night..Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 6 to 8 ft at 14 seconds.
Mon..SE winds 5 to 10 kt, becoming sw in the afternoon. Wind waves 2 ft or less. W swell 6 to 8 ft at 14 seconds. Slight chance of showers in the afternoon.
Mon night..SW winds 10 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 6 to 8 ft at 13 seconds. Slight chance of showers.
Tue..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft. Chance of showers.
Wed..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 6 to 8 ft. Chance of showers.
PZZ600 301 Am Pdt Sat Mar 23 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z...or 2 am pdt...a 1026 mb surface high was about 500 nm west of point conception, and a 1015 mb surface low was centered over nevada. This general pattern will persist through today. A weak frontal system will bring light rain to the northern waters through this morning.


7 Day Forecast for Marine Location Near Pismo Beach, CA
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location: 35.03, -120.79     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 231158
afdlox
area forecast discussion
national weather service los angeles oxnard ca
458 am pdt Sat mar 23 2019

Synopsis 23 328 am.

A weakening frontal system will bring a chance of showers to
northern areas and the mountains today. Mostly clear skies are
expected Sunday through Monday and it will be warmer. There is a
slight chance of rain across northern areas late Monday and
Tuesday, spreading southward into all areas Wednesday. Dry and
warmer weather is expected Thursday and Friday.

Short term (tdy-mon) 23 356 am.

Mid and high level clouds were streaming across the region this morning
as a very weak broad trough moves into ca. Its associated frontal system
and band of rain was just off the central coast. This will likely bring
some showers to slo county this morning, with a chance of showers across
most of sba county. Showers could linger across interior sections
of slo sba counties this afternoon, and there is a chance that some
showers will affect the northern mtns of vtu northwestern l.A. Counties.

A few sprinkles could affect coastal and valley areas of l.A. And
vtu counties, but measurable rain is not expected. Skies should
become partly cloudy in most areas west of the mountains during
the afternoon. MAX temps will be similar to or down slightly from
those on fri, generally 4 to 8 degrees below normal in most areas.

Gusty northwest winds will affect the central coast this afternoon
and evening, but winds should remain below advisory levels. It will
be locally breezy across coastal sections of l.A. Vtu counties this
afternoon. In the antelope valley, gusty sw-w winds could get close
to advisory levels this afternoon and evening, as could nw-n winds
thru and below passes and canyons in the santa ynez mtns and the
adjacent south coast of sba county early tonight.

Skies will become mostly clear across the region tonight. Then,
mostly clear skies are expected Sun thru mon, though some mid and
high clouds should start to increase across slo and sba counties
mon afternoon as a trough moves into the eastern pacific.

Heights thicknesses will rise sun, as will temps at 850 mb and
950 mb. Gradients will be very weakly offshore in the morning, then
will flip only weakly onshore in the afternoon. This should lead to
several degrees of warming in most areas sun, with MAX temps getting
close to normal. Additional height and thicknesses rises will
likely bring a few more degrees of warming to much of l.A. Vtu
counties mon, with little change in MAX temps north of pt
conception. Any rain with the approaching very weak frontal system
will likely remain to the west of the region thru Mon afternoon.

Long term (tue-fri) 23 435 am.

The next broad trough will move into the eastern pac and into
northern ca Mon night early tue. Its associated frontal system
will weaken as it moves into ca, with its southern end possibly
holding together enough to bring a chance or slight chance of
showers to slo county Mon night, with a slight chance of showers
spreading into sba county tue. Elsewhere, there will be increasing
mid and high clouds on tue. MAX temps should be down a few degrees
in most areas, especially north of pt conception where clouds
will be thickest and there will be a chance of showers.

An upper low will move thru the eastern pac Tue night and into
northern ca wed. Its frontal system will likely be stronger and
wetter, and has a better chance of bringing rain to the entire
region. The best chance of rain looks to be Tue night Wed morning
n of pt conception, and Wed early Wed night south of pt conception.

The ec continues to be wetter than the GFS with this system. At
this point, it still looks as though rainfall totals will be on
the light side, generally one quarter of an inch or less, except
possibly higher in areas north of pt conception. Some showers may
linger across the region Wed night. Drier NW flow will bring
decreasing clouds on thu, and there will be some warming. Upper
ridging should bring additional warming fri, with MAX temps
possibly rising to above normal levels. The GFS shows less ridging
than does the ec, and consequently less in the way of warming.

Aviation 23 1156z.

At 1114z around lax, there was a deep moist layer with no
inversion.

N of point conception... Low confidence with 12z tafs through 20z
due to weak frontal boundary moving through. CIGS could vary from
MVFR toVFR with 30% chance of brief ifr CIGS as trough pushes
through from kprb to ksmx. Confidence increases to mainlyVFR
after 20z. There is a 20% chance for lifr ifr CIGS across kprb
after 10z early Sunday morning.

S of point conception... Moderate confidence with 12z tafs. Mainly
MVFR conds through 17z across coast and valley tafs. Higher
confidence withVFR conds after 18z. 20% chance for MVFR cigs
after 06z this evening into early Sunday morning across coast and
valley TAF sites.

Klax... Moderate confidence thru 20z. 30% chance that MVFR cigs
will continue after 18z. Higher confidence forVFR conds after
20z. There is a 30% chance for east winds greater than 10 kt
through 16z this morning.

Kbur... Moderate confidence thru 20z. 30% chance that MVFR cigs
will continue after 18z. Higher confidence forVFR conds after
20z.

Marine 23 252 am.

A long period west to northwest swell is starting to move into the
coastal waters adjacent to the central coast and is expected to
rise to 10 to 12 feet with periods of 15 to 17 seconds. The gusty
winds will generate choppy seas nearly everywhere on top of the
longer period west to northwest swell. Some of the swell energy
will reach the inner waters later today allowing for a west
swells 5 to 7 feet through Sunday.

The SCA conditions for winds and seas over the outer waters will
persist through late tonight. Seas above 10 feet are likely to
continue through Sunday evening. SCA winds will be possible again
Sunday night and Monday, and again on Wednesday. For the inner
waters north of point sal, hazardous seas above 10 feet are
expected this morning, with a chance of SCA gusts in the
afternoon and evening.

For the inner waters south of point conception, there is a 60%
chance for SCA gusts across the inner santa barbara channel
(pzz650) this afternoon through this evening. There is a 30%
chance of a SCA for the southern inner waters zone (pzz655),
mainly the NW portion. Otherwise winds are expected to remain
below SCA levels through Tuesday. There is a chance of SCA gusts
again on Wednesday.

Beaches 23 311 am.

A long 18 second period west to northwest swell moving into the
coastal waters is expected to peak later today. While periods
will drop to about 15 seconds during the peak this afternoon,
the combination of size and period will be enough to generate high
surf on the central coast between 8 and 14 feet. Surf will also
build along the west facing beaches south of point conception,
especially along the ventura county coast where waves should peak
in the 5 to 8 feet range. There is a chance that some spots on the
los angeles county coast will also see waves of 7 feet. As a
result, a high surf advisory is in effect for these areas. The
exposed west facing beaches of santa barbara county, like rincon,
could also see waves near 7 feet, but will not plan on issuing an
advisory due to the highly localized nature. The swell and surf
should gradually subside on Sunday.

Waves like this pose a serious risk to anyone that enters the
ocean. Strong and deadly rip currents will be happening. Please
emphasize the special risk of anyone on the rock jetties, as there
is a long history of fatalities from people that go on the rocks
and tide pools during such events.

Lox watches warnings advisories
Ca... High surf advisory in effect until 9 pm pdt Sunday for zones
34-35-40-41-87. (see laxcfwlox).

Pz... Small craft advisory for hazardous seas in effect until 9 am
pdt Sunday for zones 645-670. (see laxmwwlox).

Small craft advisory in effect from 3 pm this afternoon to 9
pm pdt this evening for zone 650. (see laxmwwlox).

Small craft advisory in effect until 9 am pdt Sunday for
zones 673-676. (see laxmwwlox).

Hazard potential outlook (mon-fri)
No significant hazards expected.

Public... Db
aviation... Kaplan
marine... Kaplan smith
beaches... Kaplan smith
synopsis... Db
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSLC1 - 9412110 - Port San Luis, CA 10 mi45 min 52°F 56°F1021.4 hPa
CPXC1 10 mi33 min SE 5.1 G 5.1 51°F 1021.3 hPa49°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 13 mi73 min WNW 7.8 G 9.7 56°F 57°F8 ft1020.2 hPa (-0.5)
46215 - Diablo Canyon, CA (076) 13 mi33 min 59°F7 ft
PTGC1 - Point Arguello, CA 32 mi63 min Calm G 1.9 54°F 1020.4 hPa (-0.3)
HRVC1 39 mi45 min 56°F 1020.7 hPa
46218 - Harvest, CA (071) 40 mi33 min 57°F10 ft
46259 42 mi33 min 58°F9 ft

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, CA17 mi67 minN 010.00 miOvercast52°F48°F86%1020.2 hPa
Santa Maria Public Airport/Capt G Allan Hancock Field, CA20 mi72 minS 310.00 miOvercast53°F50°F89%1020.8 hPa
Lompoc, Vandenberg Air Force Base, CA23 mi2.1 hrsSE 68.00 miOvercast50°F50°F100%1021 hPa

Wind History from SBP (wind in knots)
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Last 24hrSE5CalmCalmCalmNW12NW11NW13NW14NW14W12NW12NW8NW5NW3SW3E3SE3CalmSE5E3SE5SE33Calm
1 day agoCalmSE5S7SE6S55SW9SW9SW6SW5--NW9NW7NW4NW4CalmCalmCalmSE4E3CalmE3CalmSE4
2 days agoE4SE5S4SE4W73NW10NW13NW12NW13NW11NW9W3CalmCalmSE3E4CalmSE3CalmCalmE3SW4E3

Tide / Current Tables for Avila, California
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Avila
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Sat -- 06:14 AM PDT     -2.27 feet Low Tide
Sat -- 07:02 AM PDT     Sunrise
Sat -- 09:01 AM PDT     Moonset
Sat -- 12:22 PM PDT     1.95 feet High Tide
Sat -- 06:25 PM PDT     -1.87 feet Low Tide
Sat -- 07:17 PM PDT     Sunset
Sat -- 10:32 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.321.20.1-1-1.9-2.3-2.1-1.5-0.50.61.51.91.91.30.4-0.6-1.4-1.8-1.8-1.3-0.30.71.7

Tide / Current Tables for Port San Luis Wharf, California
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Port San Luis Wharf
Click for Map
Sat -- 12:08 AM PDT     5.47 feet High Tide
Sat -- 06:34 AM PDT     -0.19 feet Low Tide
Sat -- 07:02 AM PDT     Sunrise
Sat -- 09:01 AM PDT     Moonset
Sat -- 12:40 PM PDT     4.57 feet High Tide
Sat -- 06:33 PM PDT     0.62 feet Low Tide
Sat -- 07:17 PM PDT     Sunset
Sat -- 10:32 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.55.24.43.11.70.6-0.1-0.10.41.52.73.84.44.54.13.22.21.30.70.71.22.23.44.4

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 (11,2,3,4)
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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.