Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Los Osos, 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 6:51AMSunset 6:57PM Saturday September 23, 2017 4:03 AM PDT (11:03 UTC) Moonrise 9:09AMMoonset 8:22PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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
    EDIT      (on/off)   Help
PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 220 Am Pdt Sat Sep 23 2017
Today..Winds variable 10 kt or less...becoming nw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 4 to 5 ft at 10 seconds.
Tonight..NW winds 15 to 20 kt with local gusts to 25 kt in the evening...becoming 10 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 5 ft at 10 seconds.
Sun..Winds variable 10 kt or less...becoming nw 10 to 15 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 3 to 4 ft at 10 seconds.
Sun night..NW winds 10 to 15 kt in the evening...becoming N 5 to 10 kt. Wind waves 1 to 3 ft. NW swell 3 to 4 ft at 11 seconds.
Mon..N winds 5 to 10 kt...becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 ft at 11 seconds.
Mon night..NW winds 10 to 15 kt in the evening...becoming N 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 ft at 11 seconds.
Tue..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft.
Wed..Winds variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft.
PZZ600 220 Am Pdt Sat Sep 23 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 1026 mb high pressure center was located 700 nm west of eureka and a 1003 mb low pressure trough stretched from arizona up through the central valley of california. Northwest flow has been diminishing but will remain gusty today. Short period choppy seas will persist through today as well.

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


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 klox 230833
afdlox
area forecast discussion
national weather service los angeles oxnard ca
133 am pdt Sat sep 23 2017

Synopsis
Gradually strengthening offshore flow will bring a warming and
drying trend to the area through next week. At times, there will
be some gusty north to northeast winds across the area. Mostly
clear skies are expected as the north to northeast winds limit the
development of the night and morning low clouds and fog.

Short term (tdy-mon)
overall, 00z models in very good synoptic agreement through the
period. At upper levels, low will meander over the great basin
today through Sunday then move eastward on Monday. Near the
surface, offshore gradients will gradually increase through the
period.

Forecast-wise, main concerns in the short term will be offshore
winds and temperatures. With respect to winds, the gradual
increase in offshore gradients will result in an increase in north
to northeast winds across the area. At this time, the upper level
support is not overly impressive, so do not anticipate any
widespread advisory-level winds through Monday. However, there
will be some locally gusty offshore winds in the usual spots
(across southern sba county early this morning then shifting to
ventura and los angeles counties today and continuing through
Monday).

Otherwise, the overall synoptic pattern (increasing offshore
surface gradients and increasing thicknesses h5 heights) will
result in a warming trend across the area through Monday. In fact
by Monday, most coastal and valley areas will be a few degrees
above seasonal normals. Additionally, overnight lows will be
gradually increasing through the period.

As for clouds, generally mostly clear skies will prevail through
the period. There will be some patchy stratus fog this morning
along the central coast, but otherwise coastal and valley areas
are expected to remain stratus-free through the period.

Long term (tue-fri)
overall, 00z models exhibit decent synoptic agreement through the
period. At upper levels, low develops over the eastern deserts on
Tuesday and meanders across the eastern deserts and great basin
through the period. Near the surface, offshore flow will continue
although the flow should weaken by the end of next week.

Forecast-wise, main concerns will continue to be offshore winds
and temperatures. Northeasterly winds will continue through the
period with the strongest winds likely Tuesday Wednesday.

Depending on exactly where the upper low meanders, the upper level
support could increase or decrease. At this time, still do not
anticipate any widespread advisory-level winds across the area,
but this possibility will need to be closely monitored the next
few days. As the offshore winds continues, skies should remain
mostly clear for all areas as stratus development should be nil.

With the continued offshore flow, temperatures will remain well
above seasonal normals through the period with next Friday
potentially the warmest day. Overnight lows will also remain warm
through the period.

Aviation 23 06z.

At 03z at klax... There was no notable inversion.

Overall... Moderate to high confidence in the current tafs. There
is a sixty percent chance of lifr ifr conditions 07z-16z at
central coast terminals and a twenty percent chance of MVFR
conditions 15z-20z at coastal los angeles county terminals. There
is a less than ten percent chance of MVFR conditions 12z-18z at
kbur and kvny. Otherwise and elsewhereVFR conditions will
prevail.

Klax... Moderate to high confidence in the current taf. There
is a twenty percent chance of MVFR conditions 15z-20z. Otherwise
vfr conditions will prevail. There is a twenty percent chance of
east winds up to ten knots 11z-15z.

Kbur... High confidence in the current taf. There is a less than
ten percent chance of MVFR conditions 12z-18z. OtherwiseVFR
conditions will prevail.

Marine 23 200 am.

Small craft advisory (sca) level winds will persist across the
outer waters through tonight then diminish to below SCA levels
Sunday through Wednesday. Portions of the inner waters...

particularly in the santa barbara channel... Will have locally
gusty winds reach SCA levels today. Otherwise conditions across
the inner waters will remain below advisory levels through
Wednesday.

Short period choppy sea conditions will persist across the coastal
waters today.

Lox watches warnings advisories
Ca... None.

Pz... Small craft advisory in effect until 3 am pdt early this
morning for zone 650. (see laxmwwlox).

Small craft advisory in effect until 3 am pdt Sunday for
zones 670-673-676. (see laxmwwlox).

Hazard potential outlook (mon-fri)
it will be hot through next week, especially away from the coast.

There will be gusty northeast winds at times, especially across
los angeles and ventura counties Tuesday and Wednesday. The
combination of heat, gusty winds and low relative humidity values
will bring heightened fire danger, especially to the mountains and
valleys through the week.

Public... Thompson
aviation... Kj
marine... Kj
synopsis... Thompson
weather.Gov losangeles


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 9 mi37 min 56°F4 ft
PSLC1 - 9412110 - Port San Luis, CA 12 mi46 min Calm G 1 53°F 57°F1011.9 hPa
CPXC1 12 mi32 min N 4.1 G 6 52°F 1011.7 hPa47°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 28 mi74 min NW 12 G 16 59°F 60°F6 ft1010.9 hPa (-0.4)

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
Last
24hr
SE2
W2
N2
N3
N3
S1
SW1
G4
W12
G15
W17
G21
W20
G27
W20
W18
G23
W17
G21
W11
G15
W9
G16
W7
G12
SW2
G8
NW5
W2
NW1
W1
--
N1
--
1 day
ago
W1
NW3
G6
N7
G12
N4
NW5
NE1
S2
SW10
G14
W13
G17
NW10
G19
W11
G19
NW8
G20
W5
G17
NW11
G17
W8
G17
NW18
G28
NW20
G28
W6
NW2
W3
SW3
G6
SE1
W1
N2
2 days
ago
--
SE1
N11
G14
N9
G13
N9
G14
NW8
G11
W10
W11
G15
W24
G29
W23
W16
G21
NW9
G18
NW13
G18
NW9
G15
W3
G6
W5
W1
N3
NW5
N4
SE1
--
NE1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA12 mi68 minN 010.00 miFair50°F46°F86%1011 hPa

Wind History from SBP (wind in knots)
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
Last 24hrNW3W6W7W4CalmNW4NW54NW6NW14NW17NW17
G23
NW16
G23
NW18NW16NW12NW12N7NW3E3E3CalmE3Calm
1 day agoNW7NW5CalmCalmNW6NW4NW4W8NW17NW19
G25
NW21
G29
NW18
G29
NW22
G30
NW22
G30
NW21
G28
NW17
G25
NW8NW8NW8--W4W5NW4NW4
2 days ago3W8NW11N12NW13NW14NW12NW15NW14NW21NW19
G26
NW21
G27
NW20NW18
G22
NW14NW11NW8NW8NW7N3NW3CalmNW33

Tide / Current Tables for Morro Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Morro Bay
Click for Map
Sat -- 01:09 AM PDT     3.36 feet High Tide
Sat -- 06:52 AM PDT     Sunrise
Sat -- 07:12 AM PDT     1.40 feet Low Tide
Sat -- 10:09 AM PDT     Moonrise
Sat -- 01:20 PM PDT     4.14 feet High Tide
Sat -- 06:58 PM PDT     Sunset
Sat -- 08:17 PM PDT     0.81 feet Low Tide
Sat -- 09:22 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.13.43.22.92.41.91.61.41.51.92.63.33.84.143.62.92.21.61.10.80.91.42

Tide / Current Tables for Port San Luis, Pacific Ocean, California
   EDIT      (on/off)   Help   One Week of Data
Port San Luis
Click for Map
Sat -- 12:35 AM PDT     4.50 feet High Tide
Sat -- 06:20 AM PDT     1.60 feet Low Tide
Sat -- 06:52 AM PDT     Sunrise
Sat -- 10:08 AM PDT     Moonrise
Sat -- 12:32 PM PDT     5.10 feet High Tide
Sat -- 06:57 PM PDT     Sunset
Sat -- 07:12 PM PDT     0.88 feet Low Tide
Sat -- 09:22 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.44.54.13.42.621.61.72.22.93.84.6554.63.82.81.91.20.911.52.33.1

Weather Map and Satellite Images
       (on/off)   Help
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 (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Vandenberg AFB, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.