Monday, January22, 2018 L-36.com


Marine Weather and Tides
Pismo Beach, 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 7:05AMSunset 5:22PM Monday January 22, 2018 6:12 PM PST (02:12 UTC) Moonrise 10:29AMMoonset 10:50PM Illumination 38% Phase: Waxing Crescent; Moon at 6 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- 213 Pm Pst Mon Jan 22 2018
.small craft advisory for hazardous seas in effect through late tonight...
Tonight..NW winds 10 to 15 kt in the evening, becoming N 5 to 10 kt. Wind waves 2 ft or less. NW swell 10 to 11 ft at 14 seconds.
Tue..N winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 7 to 8 ft at 14 seconds.
Tue night..N winds 10 to 15 kt in the evening, becoming ne 5 to 10 kt. Wind waves 2 ft or less. NW swell 6 to 7 ft at 13 seconds.
Wed..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 12 seconds.
Wed night..Winds variable 10 kt or less in the evening, becoming W 10 to 15 kt. Wind waves 2 ft or less. W swell 5 to 6 ft at 12 seconds. Rain likely.
Thu..NW winds 10 to 15 kt, becoming 15 to 20 kt in the afternoon. Wind waves 2 to 3 ft. W swell 7 to 8 ft at 11 seconds, building to 10 to 11 ft at 11 seconds in the afternoon.
Thu 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 10 to 12 ft at 10 seconds.
Fri..N winds 15 to 20 kt. Combined seas 9 to 12 ft.
Sat..N winds 15 to 20 kt. Combined seas 7 to 9 ft.
PZZ600 213 Pm Pst Mon Jan 22 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z...or 12 pm pst...a 1030 mb high was 500 nm W of point conception and a 1029 mb high was over utah. Weak lower pres was located along the coast of sw ca. Another large nw swell will move across the outer waters tonight.

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 230037
afdlox
area forecast discussion
national weather service los angeles oxnard ca
437 pm pst Mon jan 22 2018

Synopsis
A high and offshore flow will bring fair and warm conditions into
midweek. Then a low will spread the possibility of precipitation
from the northwest on Wednesday evening, and to santa barbara and
the ventura mountains by Thursday morning. The weekend will be
dry with clearing skies and above normal temperatures, as offshore
flow and a high build in.

Short term (tdy-thu)
weak system is washing out north of slo county and except for
possibly the extreme north part of the county it is not expected
to bring any precip to the area. Behind it we'll see increasing
offshore gradients the next couple days leading to quite a bit of
warming, especially la ventura county coast valleys which will
warm into the 70s and 80s Tue wed. There will be some localized
north to northeast winds, mainly SRN sb county tonight and across
the mountains and higher valleys of ventura la counties tue.

The tail end of another system will hit the northern areas late
Wednesday into early Thursday. This one seems to have slightly
more staying power to it so confidence is higher that we'll
actually see some measurable precip from it, albeit still quite
light and virtually all of it north of pt conception. There could
be a few sprinkles or very light showers as far south as santa
barbara very early Thursday morning but there's too much
west northwest flow with it to allow much of that precip to reach
the ground. Otherwise expecting clearing skies Thursday with again
some increasing north to northwest winds behind it Thursday
evening. Daytime temps will drop several degrees as well Thursday
with the frontal passage with highs mostly in the 60s at lower
elevations.

Long term (fri-mon)
a pretty strong high pressure ridge is expected to develop along
the west coast behind the Thursday frontal passage and last
through the weekend. Gradients will shift back to offshore, which
combined with the high pressure aloft will push temps back up to
the 70s and 80s for coast valleys south of pt conception and
60s 70s up north. Not really looking for any winds of significance
except some gusty north to northeast winds through the santa ynez
and santa lucia ranges Friday night into early Saturday.

This pattern breaks down somewhat early next week but only enough
to cool things off as the trough that's coming is expected to take
an inland path through the west and likely initiate another
offshore flow pattern that will last through at least the middle
of next week. It's looking increasingly likely that the southern
part of the forecast area will remain dry through the remainder of
january.

Aviation 23 0030z.

Due to government shutdown, amdar data was not avail.

High confidence in cavu tafs. Except there is a 10 percent chc of
some sprinkles in the vicinity of kprb this evening.VFR cigs
between 060-100 through 06z.

Klax and kbur... High confidence in cavu taf.

Marine 22 200 pm.

Across the southern outer waters zones (pzz673, pzz676) SCA conds
for seas are likely much of the time through Tue night due to a
combination of winds and seas.

Across the northern outer waters zone (pzz670) SCA conds are
likely again thru tonight due to seas. SCA seas are expected to
move into the nearshore waters north of point sal (pzz645) during
this time as well.

Across the sba channel and the southern inner waters, SCA conds
are not expected until thu.

Another long period swell is expected Thu into fri.

Lox watches warnings advisories
Ca... High surf advisory in effect until 4 am pst Tuesday for zones
34-35. (see laxcfwlox).

Pz... Small craft advisory for hazardous seas in effect until 4 am
pst Tuesday for zones 645-670. (see laxmwwlox).

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

Hazard potential outlook (thu-mon)
gusty winds are possible Thursday and Friday over the mountains
and southern santa barbara county. Gusty santa ana winds could
develop over next weekend.

Public... Mw
aviation... Kaplan
marine... Sweet
synopsis... Stu
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 mi42 min NE 5.1 G 8 59°F 57°F1025.4 hPa
CPXC1 10 mi30 min Calm G 1 59°F 1025.3 hPa50°F
46215 - Diablo Canyon, CA (076) 13 mi45 min 57°F8 ft
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 13 mi82 min WNW 16 G 19 57°F 57°F13 ft1024.9 hPa (-0.7)
PTGC1 - Point Arguello, CA 32 mi72 min NNW 24 G 26 56°F 1024.4 hPa (-0.4)
HRVC1 39 mi42 min 56°F 1024.8 hPa
46218 - Harvest, CA (071) 40 mi42 min 56°F12 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 mi76 minNW 1310.00 miPartly Cloudy58°F52°F81%1025.1 hPa
Santa Maria Public Airport/Capt G Allan Hancock Field, CA20 mi21 minWNW 78.00 miA Few Clouds55°F53°F93%1025.2 hPa
Lompoc, Vandenberg Air Force Base, CA23 mi77 minNNW 18 G 2310.00 miA Few Clouds and Breezy56°F52°F88%1024.8 hPa

Wind History from SBP (wind in knots)
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Last 24hrN4CalmSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmSE4SE4CalmNW10NW12N9
G16
NW12NW15NW13NW15NW13NW9
1 day agoNW6NW5NW4N6NW6SW3CalmCalmW7E4SE3E4CalmCalmCalmCalmCalmNW8N9N10NW16NW12NW10NW12
2 days agoNW4NW3NW4N5NW4NW6NW6W6NW9NW75NW3--N6N94N76W8NW11NW15NW15NW12NW7

Tide / Current Tables for Avila, California
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Avila
Click for Map
Mon -- 01:33 AM PST     1.29 feet High Tide
Mon -- 07:04 AM PST     -0.39 feet Low Tide
Mon -- 07:08 AM PST     Sunrise
Mon -- 10:28 AM PST     Moonrise
Mon -- 12:31 PM PST     1.25 feet High Tide
Mon -- 05:21 PM PST     Sunset
Mon -- 07:22 PM PST     -1.95 feet Low Tide
Mon -- 10:50 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.91.21.310.60.1-0.3-0.4-0.300.50.91.21.20.90.4-0.3-1.1-1.6-1.9-1.9-1.5-0.9-0.1

Tide / Current Tables for Port San Luis, Pacific Ocean, California
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Port San Luis
Click for Map
Mon -- 01:47 AM PST     4.24 feet High Tide
Mon -- 07:08 AM PST     Sunrise
Mon -- 07:17 AM PST     2.39 feet Low Tide
Mon -- 10:28 AM PST     Moonrise
Mon -- 12:44 PM PST     4.13 feet High Tide
Mon -- 05:21 PM PST     Sunset
Mon -- 07:31 PM PST     0.70 feet Low Tide
Mon -- 10:50 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.74.14.243.632.62.42.52.83.23.744.13.93.32.61.81.10.80.71.11.82.6

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 (21,6,7,8)
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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.