Wednesday, August16, 2017 L-36.com


Marine Weather and Tides
Morro Bay, 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 6:22AMSunset 7:50PM Wednesday August 16, 2017 8:24 AM PDT (15:24 UTC) Moonrise 12:14AMMoonset 2:30PM Illumination 31% Phase: Waning Crescent; Moon at 24 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- 218 Am Pdt Wed Aug 16 2017
Today..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds.
Tonight..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds. Patchy fog after midnight.
Thu..Winds variable 10 kt or less...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds. Patchy fog in the morning.
Thu night..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 10 seconds. Patchy fog after midnight.
Fri..NW winds 5 to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 11 seconds. Patchy fog in the morning.
Fri night..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 11 seconds. Patchy fog after midnight.
Sat..NW winds 15 to 20 kt. Combined seas 5 to 6 ft. Patchy fog.
Sun..W winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft. Patchy fog.
PZZ600 218 Am Pdt Wed Aug 16 2017
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 1029 mb high was 850 nm W of eureka...and a 1003 mb low was near las vegas.

7 Day Forecast for Marine Location Near Morro Bay city, CA
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location: 35.39, -120.93     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 161407
afdlox
area forecast discussion
national weather service los angeles oxnard ca
707 am pdt Wed aug 16 2017

Synopsis
Night through morning low clouds and fog will continue through the
period. There is a chance of local drizzle Wednesday morning.

A gradual warming trend and weaker onshore breezes are expected
through Saturday, even though temperatures will remain a bit
below normal in most areas.

Short term (tdy-fri)
the marine layer is near 3000 feet deep and it is capped by a weak
inversion. There is moderate onshore flow to the east and weak
onshore flow to the north. More importantly there are offshore
trends both from the north and ESP the east. The weak inversion
and the offshore trends have delayed stratus formation across
ventura and southern sba counties. It will take til dawn but these
areas will fill in also. There might be some drizzle across the
foothills but the marine layer has pretty much wrung itself out
and expect most of the area to be dry. The offshore trends will
allow for a full clearing day today. Hgts rise through the day
today as the large western CONUS trof pulls eastward. Add to the
rising hgts a little more sunshine and weaker onshore flow and you
have a recipe for warmer temps. Still even with the warming trend
max temps will be 4 to 8 degrees below normal.

Pretty uneventful forecast for Thursday and Friday. The upper trof
covering the SW will weaken further Thursday and then wash out
Friday. Hgts rise steadily through the period. Offshore trends
will continue as well and by Friday there will be just weak
onshore flow. The night through morning low clouds will continue
at the coasts but will be smooshed and pushed out of most of the
vlys. There will be total clearing each day by mid or late
morning. MAX temps will climb each day. The mtns... Inland vlys and
the antelope vly will reach normals Thursday and exceed them on
Friday. The coasts and vlys will also warm but will likely still
be a a couple degrees shy of normal on Friday.

Long term (sat-tue)
not much change in the weather variables for Saturday from Friday
and the days will be similar. It looks like the airmass will be
just a touch warmer so Saturday will be the warmest of the next 7
for most of the area.

Both the GFS and the ec slowly develop a cut off low a couple
hundred miles to the SW of pt conception on Sunday and Monday and
then fcst it to sit and spin in roughly the same location on tue.

The hgts will lower but not much to 588 dm the cyclonic flow
overhead will lift the marine layer back into the vlys. The
offshore trends generated by the sfc reflection of the upper low
in the waters will induce offshore trends which will allow good
clearing each day. MAX temps will cool Sunday and then change
little both Sun and mon.

Aviation 16 1400z.

At 1330z, the marine layer depth was around 4000 ft deep at klax.

The top of the marine inversion was around 6500 ft with a
temperature near 14 degrees celsius.

Low to moderate confidence in the current forecast. MVFR toVFR
conditions with ceilings at or below 4000 feet will impact most
coastal and valley terminals through at least 16z, then likely
clear across coastal TAF sitesthrough 20z. There is a 50% chance
thatVFR CIGS will linger over kbur,kvny into this afternoon. There
is a chance that timing ofVFR conditions could develop + - 2
hours earlier later than the current forecast.

Klax... High MVFR toVFR CIGS are expected through 18z. Scour out
times could vary + - 2 hours. SE winds are expected not to exceed
8 kt through 17z. Winds should then turn sw. MVFR conds are
expected to return after 06z tonight.

Kbur... MVFR toVFR conditions with ceilings at or below 4000 feet
will continue through at least 16z or as late as 20z. A later
return of MVFR conditions is expected for tonight, likely after
10z.

Marine 16 300 am.

Moderate to high confidence in the current forecast. Winds will
continue to lighten through today. Local gusts in excess of 25
knots may still occur across the southern outer waters this
morning and through the san pedro and santa barbara channel each
afternoon and evening through Friday night. There is a 40 percent
chance of small craft advisory level winds across the southern
outer waters on Friday night and into Saturday morning.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (fri-tue)
no significant hazards expected.

Public... Rorke
aviation... Kaplan
marine... Hall
synopsis... B
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSLC1 - 9412110 - Port San Luis, CA 18 mi54 min Calm G 0 58°F 56°F1016.7 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 30 mi94 min N 3.9 G 3.9 59°F 58°F5 ft1015.4 hPa (+0.8)

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, CA19 mi28 minN 010.00 miOvercast60°F54°F80%1015.9 hPa

Wind History from SBP (wind in knots)
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Last 24hrSE3CalmSW4W4NW11NW10
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NW10NW12NW11NW13NW11NW8NW9NW7NW6NW5CalmE3CalmCalmCalmCalmSE3Calm
1 day agoCalmS64SW5W6NW12NW18
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2 days agoSE7SE3CalmCalm--5NW7NW10NW14NW15NW14NW11NW7NW5SW4S3S4S5Calm--CalmSE4SE3Calm

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
Click for Map
Wed -- 12:48 AM PDT     0.73 feet Low Tide
Wed -- 01:13 AM PDT     Moonrise
Wed -- 06:23 AM PDT     Sunrise
Wed -- 07:12 AM PDT     3.31 feet High Tide
Wed -- 11:49 AM PDT     2.26 feet Low Tide
Wed -- 03:30 PM PDT     Moonset
Wed -- 06:26 PM PDT     5.43 feet High Tide
Wed -- 07:50 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.711.52.12.73.13.33.232.62.32.32.52.93.64.455.45.44.94.131.9

Tide / Current Tables for Port San Luis, Pacific Ocean, California
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Port San Luis
Click for Map
Wed -- 12:25 AM PDT     0.62 feet Low Tide
Wed -- 01:13 AM PDT     Moonrise
Wed -- 06:23 AM PDT     Sunrise
Wed -- 06:50 AM PDT     3.55 feet High Tide
Wed -- 11:25 AM PDT     2.40 feet Low Tide
Wed -- 03:29 PM PDT     Moonset
Wed -- 06:01 PM PDT     5.85 feet High Tide
Wed -- 07:50 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.71.11.72.43.13.43.53.432.72.42.52.83.44.255.65.85.64.93.92.71.5

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 (11,2,3,4)
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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.