Wednesday, January24, 2018 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 7:05AMSunset 5:23PM Tuesday January 23, 2018 9:11 PM PST (05:11 UTC) Moonrise 11:02AMMoonset 11:51PM Illumination 49% Phase: First Quarter Moon; Moon at 7 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
PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 821 Pm Pst Tue Jan 23 2018
Tonight..NW winds 10 to 15 kt, becoming 5 to 10 kt after midnight. Local gusts to 20 kt in the evening. Wind waves 2 ft or less. NW swell 6 to 8 ft at 12 seconds.
Wed..NW winds 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 5 to 6 ft at 12 seconds. Patchy dense fog with vsby 1 nm or less.
Wed night..SW winds 10 to 15 kt, becoming W 10 to 20 kt with gusts to 25 kt after midnight. Strongest western portion. Wind waves 1 to 3 ft. W swell 5 to 6 ft at 12 seconds. Patchy dense fog with vsby 1 nm or less in the evening. Showers likely.
Thu..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. W swell 7 to 8 ft at 13 seconds. Slight chance of showers.
Thu night..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Wind waves 2 to 3 ft. W swell 8 to 9 ft at 15 seconds, building to 10 to 12 ft at 14 seconds after midnight.
Fri..NW winds 10 to 15 kt, becoming 15 to 25 kt in the afternoon. Combined seas 11 to 13 ft dominant period 14 seconds.
Fri night..NW winds 15 to 20 kt, becoming N 10 to 20 kt after midnight. Gusts to 25 kt. Wind waves 2 to 4 ft. NW swell 10 to 11 ft at 14 seconds.
Sat..N winds 10 to 20 kt with gusts to 25 kt. Wind waves 2 to 4 ft. NW swell 7 to 9 ft.
Sun..N winds 15 to 25 kt. Combined seas 6 to 7 ft.
PZZ600 821 Pm Pst Tue Jan 23 2018
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 7 pm pst...a 1035 mb high was over the four corners area with a ridge extending to a 1026 mb high 500 nm sw of point conception. An inverted trough was along the southern ca coast. Little change in this pattern can be expected through Wed.

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 240503
afdlox
area forecast discussion... Updated
national weather service los angeles oxnard ca
903 pm pst Tue jan 23 2018

Synopsis
A high pressure system over the region will break down through
Wednesday as a low pressure system off the pacific northwest coast
will bring the possibility of precipitation mainly for the
northern portion from Wednesday evening into Thursday morning.

The weekend will be dry with clearing skies and temperatures will
climb above normal into early next week as offshore flow develops
beneath high pressure aloft.

Short term (tnt-fri)
latest satellite imagery shows a ridge of high pressure breaking
down and shifting east this evening as a trough of low pressure
near 49n and 140w moves toward the pacific northwest coast. A cold
frontal boundary is stretching from the puget sound out to the
southwest. Offshore flow will weaken through Wednesday and be
replaced by onshore flow through Wednesday night. Increasing
cloudiness will occur throughout the day on Wednesday. High-
resolution model solutions show increasing stratus clouds
developing on Wednesday afternoon. Any precipitation looks to
hold off until late in the afternoon or early in the evening along
the central coast. Pops and weather look reasonable for the
current time and no changes were made, but slight chance pops
cannot be ruled out south of point conception on Thursday at this
point. A few tweaks were made to temperatures for Wednesday.

*** from previous discussion ***
gusty northwest to north winds will likely develop later Thursday
across wind prone areas. Lingering clouds and some showers are
possible across the north slopes, especially in ventura county.

Gusty northerly winds are expected on Friday and there will be a
building ridge of high pressure.

Long term (sat-tue)
offshore winds are likely to weaken for the weekend with just a
chance of reaching advisory levels. The offshore flow combined
with a strong ridge of high pressure for this time of year (h5
near 582 dm) will bring another round of warming, with
temperatures likely reaching the low 80s for the warmer coastal
valleys this weekend.

For early next week, model guidance continues to differ on how
quickly the ridge of high pressure over the region is replaced by
a deepening trough over the great basin. Current forecast splits
the difference, but if current trends continue early next week may
become at least somewhat cooler and much windier than the current
forecast package suggests.

Aviation 23 2350z...

at 2317z, the inversion at klax was around 200 ft deep. The top
of the inversion was at 1000 feet with a temperature of 19 deg c.

Overall, high confidence in 00z TAF package. Weak offshore flow
is expected to keep most sitesVFR through the period. The only
exception will be kprb where vlifr conditions are expected 12z-
18z wed.

Klax... High confidence in 00z TAF withVFR conditions through wed
evening.

Kbur... High confidence in 00z TAF withVFR conditions through wed
afternoon.

Marine 23 745 pm...

for the outer waters, good confidence in current forecast. Winds
and seas will remain below small craft advisory (sca) levels
through Wednesday night. From Thursday through Sunday, high
confidence in both winds and seas increasing to SCA levels.

For the inner waters, good confidence in current forecast. For the
waters north of point sal, winds and seas are expected to remain
below SCA levels through Thursday. On Friday and Friday night,
seas are expected to increase to SCA levels. For the waters south
of point conception, winds and seas are expected to remain below
sca levels. However, there is a 30% chance of SCA level winds
Thursday afternoon evening across western sections.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (fri-tue)
gusty advisory-strength winds are possible Thursday and Friday
over the mountains and southern santa barbara county, possibly
impacting travel. Gusty santa ana winds could develop over next
weekend increasing the risk of fire.

Public... Hall jld
aviation... Sirard
marine... Rat sirard
synopsis... Stu hall
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 mi45 min 58°F6 ft
PSLC1 - 9412110 - Port San Luis, CA 12 mi42 min NW 1 G 1.9 54°F 57°F1022.6 hPa
CPXC1 12 mi26 min NNE 6 G 7 52°F 1022.2 hPa43°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 28 mi82 min NNW 12 G 14 56°F 57°F8 ft1021.5 hPa (+0.3)

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
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
Last
24hr
--
--
E2
N2
N1
SE2
G5
S1
N11
G15
NW7
G11
N4
S1
G4
N8
NE5
NE7
SW2
W11
W13
G16
W8
W11
NW2
N2
S1
--
NW1
1 day
ago
N2
G5
E3
N4
SE1
NE1
W1
NE3
--
--
N1
G4
E1
NE5
E1
G5
S3
S6
S1
G5
NW3
G6
NW6
G15
W13
G17
W13
G20
NW6
G15
NW3
G10
SW2
N2
2 days
ago
NW9
G12
W1
N5
NW5
NW8
NW5
N5
N8
N4
N4
NW4
NW5
NE2
NE4
E3
G6
N7
G12
N7
G13
N6
G15
W16
W15
W17
NW13
W10
NW6
G11

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 mi76 minN 010.00 miFair51°F46°F83%1021.5 hPa

Wind History from SBP (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
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
Last 24hrCalmN5NW8NW7NW63SW3CalmSW4CalmN3CalmS3Calm3N4CalmNW7NW15NW13NW14NW7NW5Calm
1 day agoSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmSE4SE4CalmNW10NW12N9
G16
NW12NW15NW13NW15NW13NW9N5NW7
2 days agoNW4N6NW6SW3CalmCalmW7E4SE3E4CalmCalmCalmCalmCalmNW8N9N10NW16NW12NW10NW12N4Calm

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
Wed -- 03:53 AM PST     3.98 feet High Tide
Wed -- 07:07 AM PST     Sunrise
Wed -- 11:18 AM PST     1.52 feet Low Tide
Wed -- 11:37 AM PST     Moonrise
Wed -- 02:20 PM PST     First Quarter
Wed -- 04:12 PM PST     2.64 feet High Tide
Wed -- 05:23 PM PST     Sunset
Wed -- 09:43 PM PST     1.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.83.53.943.83.42.92.421.71.51.61.92.22.52.62.62.321.71.51.51.6

Tide / Current Tables for Port San Luis, Pacific Ocean, California
   EDIT      (on/off)   Help   One Week of Data
Port San Luis
Click for Map
Wed -- 03:15 AM PST     4.72 feet High Tide
Wed -- 07:07 AM PST     Sunrise
Wed -- 10:01 AM PST     1.72 feet Low Tide
Wed -- 11:36 AM PST     Moonrise
Wed -- 02:20 PM PST     First Quarter
Wed -- 03:28 PM PST     3.21 feet High Tide
Wed -- 05:23 PM PST     Sunset
Wed -- 09:03 PM PST     1.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.13.94.54.74.64.23.62.92.31.91.71.82.22.633.23.22.92.52.11.71.61.72.1

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 (0,6,7,8)
      (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.