Monday, October14, 2019 L-36.com


Marine Weather and Tides
Los Osos, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:06AMSunset 6:30PM Monday October 14, 2019 6:13 PM PDT (01:13 UTC) Moonrise 6:22PMMoonset 6:46AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 214 Pm Pdt Mon Oct 14 2019
Tonight..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft at 10 seconds. Patchy fog after midnight.
Tue..NW winds 10 to 15 kt, becoming 15 to 20 kt in the afternoon. Wind waves 2 to 3 ft. NW swell 5 to 6 ft at 11 seconds. Patchy fog in the morning.
Tue night..NW winds 15 to 20 kt with gusts to 25 kt, becoming 10 to 15 kt after midnight. Wind waves 2 to 4 ft. NW swell 5 to 6 ft at 10 seconds. Patchy fog after midnight.
Wed..NW winds 10 to 15 kt, becoming 15 to 20 kt in the afternoon. Wind waves 2 to 3 ft. NW swell 5 to 6 ft at 10 seconds. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 15 seconds, building to 8 to 9 ft dominant period 15 seconds after midnight. Patchy fog after midnight.
Thu..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 9 to 10 ft dominant period 15 seconds, building to 12 to 13 ft dominant period 15 seconds in the afternoon. Patchy fog in the morning.
Thu night..NW winds 25 to 30 kt, becoming N 20 to 30 kt after midnight. Gusts to 35 kt. Combined seas 14 to 16 ft dominant period 16 seconds.
Fri..NW winds 20 to 30 kt with gusts to 35 kt. Combined seas 14 to 17 ft.
Sat..NW winds 20 to 30 kt with gusts to 40 kt. Combined seas 11 to 14 ft.
PZZ600 214 Pm Pdt Mon Oct 14 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 1019 mb surface high was centered 500 nm west of san francisco and a 1008 mb thermal low was located over southwest arizona. The high pressure over the eastern pacific is expected to weaken through Tuesday.


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 142357
afdlox
area forecast discussion
national weather service los angeles oxnard ca
457 pm pdt Mon oct 14 2019

Synopsis 14 105 pm.

Overnight low clouds and fog are expected along most coasts. A
ridge will warm temperatures through midweek, followed by a dry
trough to cool temperatures through the end of the week. Gusty
northerly winds will develop late in the week and continue into
the weekend.

Short term (tdy-thu) 14 147 pm.

An onshore flow pattern remains in place across the area beneath
an upper-level trough of low pressure overhead. Onshore pressure
gradients peaked earlier this morning and starting to weaken.

Onshore trends still remain versus the last 24 hours, but onshore
flow will continue to weaken into Tuesday.

The trough of low pressure overhead will exit the region tonight
and an upper-level ridge off the west coast will build in quickly
aloft through Tuesday morning. A warming and drying trend is
expected for Tuesday as the flow pattern reverses to offshore.

Winds will largely remain below advisory levels, but a few
isolated gusts to 35-40 mph cannot be ruled out overnight tonight
and into Tuesday morning. Any typical low cloud coverage will
remain confined to the coastal areas, except for the santa barbara
south coast.

A weak upper-level trough of low pressure near 20n and 135w will
phase with a stronger trough centered near 50n and 150w and force
broad troughing into the west coast between Wednesday and
Thursday. Model solutions are good agreement with the middle and
upper-level synoptic pattern but disagree on how much moisture
will move south late Wednesday night and Thursday. The frontal
boundary looks to shear apart north of the area, but a mix of
clouds and Sun look a bit more definite between Wednesday night
and Thursday night. The marine layer will deepen some and low
clouds and fog should push into the valley areas on Thursday
morning. Cooler temperatures look on tap for Thursday. There is a
chance that the marine layer could struggle to clear on Thursday
until late in the day. Pops have been nudged a tad higher along
the central coast in case that the frontal boundary holds together
or the possibility of measurable drizzle.

A northerly surface gradient will develop and tighten on Thursday
night and likely bring post-frontal sundowner winds to southern
santa barbara county on Thursday night. Advisory level winds look
likely at this time.

Long term (fri-mon) 14 142 pm.

The northerly gradient will tighten further between early Friday
and Saturday. Moderate-to-high end advisory level winds look
likely to develop across southern santa barbara county and
through the interstate 5 corridor. A cooler weather pattern will
likely linger into Friday with the santa barbara south coast
likely being the warmest area due to compressional heating, but
temperatures will start to rebound into next weekend as high
pressure builds in.

Both ECMWF and GFS solutions and the GEFS members agree very well
with the idea of ridging gradually building into the region
between Saturday and Monday. A warmer weather pattern looks likely
for early next week as offshore flow settles into the region.

An early peek at the gradients indicate a weak to possibly
moderate santa ana wind event early next week. Stay tuned as this
could be developing story.

Aviation 14 2356z.

At 2330z at klax, the marine layer was 1400 ft deep. The top of
the inversion was near 4000 ft with a temperature of 16 c.

Good confidence for desert valley tafs. Moderate confidence in
coastal tafs. Lifr CIGS likely at ksbp and ksmx tonight, with
a 20 percent chance of vlifr cigs. For klax, klgb, and ksmo,
ifr MVFR CIGS likely after 08z with a 40 percent chance of cigs
at kcma and koxr by sunrise.

Klax... Moderate confidence in taf.VFR conditions likely through
this evening, then ifr MVFR CIGS likely between 08z-16z.

Good confidence in an east wind component under 5 kt.

Kbur... .High confidence in cavu taf.

Marine 14 149 pm.

High confidence that winds and seas will remain below small craft
advisory (sca) criteria through Tuesday over all of the coastal
waters. Wind speeds are expected to increase over the waters along
the central coast and southward towards san nicolas island on
Wednesday afternoon. Good confidence in SCA level winds over
these waters on Wednesday night, then become strong SCA level to
possibly near gale force on Thursday and Friday. Good confidence
in these SCA level winds reaching the western portion of the santa
barbara channel. Increasing confidence in a long-period, large nw
swell arriving Thursday and lasting through at least the weekend.

Patchy dense fog is likely across the coastal waters north of
point conception through the morning.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (thu-mon)
Gusty sundowner winds are expected for southern santa barbara
county Thursday through Sunday. Gusty northerly winds also
possible for the interstate 5 corridor region Friday through
Sunday.

Public... Hall
aviation... Gomberg
marine... Sweet
synopsis... B
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 9 mi44 min 61°F6 ft
CPXC1 12 mi44 min E 5.1 G 6 63°F 1014.3 hPa52°F
PSLC1 - 9412110 - Port San Luis, CA 12 mi56 min NW 1 G 2.9 63°F 58°F1014.5 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 28 mi84 min 58°F 60°F5 ft1014.3 hPa (-0.6)

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 mi18 minWNW 1010.00 miFair60°F48°F65%1014 hPa

Link to 5 minute data for KSBP

Wind History from SBP (wind in knots)
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Last 24hrSE3NW4W3CalmNW5N3N3N3N3NE3CalmE3CalmCalmW3CalmCalmCalmW5NW15NW13W13NW14NW10
1 day agoW5CalmE4CalmCalmCalmCalmE4CalmCalmCalmE3CalmCalmCalmCalmCalmS3NW11NW15NW9NW8NW10W5
2 days agoNW7SW5E5SE3CalmCalmCalmCalmCalmCalmCalmE3CalmCalmCalmCalmCalmNW6SW6S106SW12NW9NW8

Tide / Current Tables for Morro Bay, California
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Morro Bay
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Mon -- 05:23 AM PDT     1.26 feet Low Tide
Mon -- 07:08 AM PDT     Sunrise
Mon -- 07:45 AM PDT     Moonset
Mon -- 11:23 AM PDT     4.23 feet High Tide
Mon -- 06:23 PM PDT     0.76 feet Low Tide
Mon -- 06:29 PM PDT     Sunset
Mon -- 07:22 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.432.521.51.31.31.72.43.23.84.24.13.732.31.610.80.81.21.92.53

Tide / Current Tables for Port San Luis, Pacific Ocean, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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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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.