Monday, December18, 2017 L-36.com


Marine Weather and Tides
Cleone, 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 7:26AMSunset 4:54PM Monday December 18, 2017 1:02 AM PST (09:02 UTC) Moonrise 7:40AMMoonset 5:38PM Illumination 0% Phase: New Moon; Moon at 0 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
PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 819 Pm Pst Sun Dec 17 2017
Tonight..N winds 5 to 15 kt. Waves N 4 ft at 6 seconds...and nw 4 ft at 13 seconds.
Mon..NW winds 5 to 10 kt. Waves nw 3 ft at 5 seconds...and nw 5 ft at 13 seconds.
Mon night..SE winds 5 kt. Waves nw 7 ft at 14 seconds.
Tue..S winds 5 to 10 kt. Waves nw 7 ft at 15 seconds.
Tue night..W winds 10 to 15 kt. Waves nw 8 ft at 14 seconds.
Wed..N winds 10 to 15 kt. Waves nw 6 ft at 6 seconds...and nw 8 ft at 13 seconds.
Thu..N winds 5 to 10 kt. Waves N 3 ft at 5 seconds...and nw 8 ft at 13 seconds.
Fri..N winds 5 to 10 kt. Waves nw 5 ft at 15 seconds.
PZZ400 819 Pm Pst Sun Dec 17 2017
Synopsis for northern california waters..Northerly winds will continue to decrease tonight as a strong high pressure system builds into the region. The sea state will slowly subside as well with a northwesterly swell becoming the dominate wave feature by mid week.

7 Day Forecast for Marine Location Near Cleone, CA
   Hourly   EDIT   Help
location: 39.63, -123.78     debug


Area Discussion for - Eureka, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 keka 172259
afdeka
area forecast discussion
national weather service eureka ca
259 pm pst Sun dec 17 2017

Synopsis High pressure will maintain dry weather through
Monday. A cold front will bring a chance for rain Tuesday and
Wednesday followed by another long stretch of dry weather.

Discussion Dry weather conditions will persist Monday through
Tuesday morning as high pressure shifts over the pacific northwest.

Some high level clouds will spill over the ridge from time to
time. Also, patchy low cloud and fog may form during the night
and morning hours along the north coast and in some of the
interior river valleys.

A cold front will approach from the NW Tuesday afternoon bringing
rain to mainly del norte county by mid to late afternoon. The
bulk of rain for the rest of the area will most likely arrive late
Tuesday afternoon into the evening hours. Rain amounts will be
modest with the highest amounts expected in del norte county. The
rain will quickly change over the showers after frontal passage
Tuesday night. The models were still not in fabulous agreement
with the timing, but Tuesday evening from 4pm to 10pm looks to be
the best chance of rain for the northern zones and after 10pm for
the southern zones.

Snow levels will fall behind the front late Tuesday night and
some snow showers will be possible for the higher terrain through
mid day Wednesday. Overall, the precipitation amounts are not
looking sufficient to warrant an advisory. The best chances for
snow will be Wednesday morning above 2000 to 2500 feet. Snow
showers may impact travel over the mountain passes, so we hoisted
a weather story graphic to call attention to this road hazard.

Also, there will be a threat for low top convection and small hail
Wednesday morning as freezing levels fall to 2kft or less. Small
hail has been added to the forecast as well.

Beyond that, the gfs, ECMWF and gem indicate another shortwave
diving southward Friday night. This front is looking dry and no
rain is expected at this time. This front will user in much colder
air (modified arctic for NW ca) and increase the potential for
blustery easterly and northeast winds, primarily for the upper
elevations next weekend. It will be the coldest air of the season
so far, though it is december and not too unusual.

The models continue to indicate westerly flow breaking through
and undercutting the large scale block early next week. This is
most likely overdone or too fast. December is usually the wettest
month of the season, however this december will likely go down as
one of the driest on record.

Aviation Quiet conditions will continue for the TAF cycle as
high pressure holds over the region. Coastal terminals and
associated river valleys may see areas of patchy fog develop
tonight but conditions are not expected to fall below MVFR.

Current TAF package keepsVFR conditions in place overnight but
brief periods of MVFR conditions may occur if the fog develops.

Marine High pressure will continue to build over the pacific
resulting in decreasing northerly winds today resulting and the
sea state slowly subsiding subside. Lighter winds are expected for
Monday and will last through Tuesday before a frontal system
moves through the region. This will increase winds and shift them
to the south. A northwesterly swell will remain the dominant
feature through this period.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

small craft advisory until 10 pm pst this evening for pzz475.

Visit us at http:

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
46014 - PT ARENA - 19NM North of Point Arena, CA 29 mi33 min Calm G 1.9 1020 hPa
ANVC1 - 9416841 - Arena Cove, CA 50 mi45 min E 8.9 G 9.9 45°F 51°F1020.9 hPa

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
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
9
PM
10
PM
11
PM
12
AM
Last
24hr
NW4
G7
NW4
G8
NE3
NE2
W2
G6
N3
G6
E3
G6
NW1
NE2
G6
NW6
G9
NW4
G8
W7
G12
NW2
G6
NW8
G13
NW5
G9
NW5
G9
E3
G7
E2
E3
E3
E6
E8
E8
E8
1 day
ago
W8
G12
NW4
G10
W4
G10
W6
G11
W7
G13
NW4
G10
W1
G8
W6
G10
NE4
G13
NW7
G11
NW7
G14
NW7
G13
NW7
G13
W9
G16
W6
G12
W6
G11
W4
G9
W4
G9
NE3
G7
NW4
G8
NW3
G7
NW4
G7
NW5
G8
E2
G5
2 days
ago
E8
E8
E6
E5
E3
G6
E2
G5
E3
W6
NW6
G11
NW6
W6
G10
NW2
G5
SW2
G5
NW4
W4
G9
W4
G8
W5
G10
W4
G10
NW3
G13
W6
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA46 mi67 minN 08.00 miFair41°F37°F86%1020.6 hPa

Wind History from UKI (wind in knots)
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
9
PM
10
PM
11
PM
12
AM
Last 24hrW5W3CalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmCalmW4CalmNW3N3CalmCalmCalmCalmCalm
1 day agoN11
G15
N13
G19
NE7NW3NW3CalmCalmW3CalmCalmN5NW9NW8NW8NW6N4N5CalmCalmCalmN3CalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmW3CalmSW53N6NE7N11NW18
G26

Tide / Current Tables for Westport, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Westport
Click for Map
Mon -- 04:20 AM PST     2.89 feet Low Tide
Mon -- 07:30 AM PST     Sunrise
Mon -- 07:39 AM PST     Moonrise
Mon -- 10:27 AM PST     6.16 feet High Tide
Mon -- 04:53 PM PST     Sunset
Mon -- 05:29 PM PST     -0.32 feet Low Tide
Mon -- 05:38 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.64.43.83.22.933.44.14.95.76.16.15.54.431.50.4-0.2-0.20.31.22.33.44.2

Tide / Current Tables for Point Cabrillo, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Cabrillo
Click for Map
Mon -- 12:08 AM PST     -0.00 knots Slack
Mon -- 02:17 AM PST     -0.62 knots Max Ebb
Mon -- 05:37 AM PST     0.00 knots Slack
Mon -- 07:30 AM PST     Sunrise
Mon -- 07:39 AM PST     Moonrise
Mon -- 08:20 AM PST     0.72 knots Max Flood
Mon -- 11:07 AM PST     -0.00 knots Slack
Mon -- 02:23 PM PST     -1.36 knots Max Ebb
Mon -- 04:54 PM PST     Sunset
Mon -- 05:39 PM PST     Moonset
Mon -- 06:26 PM PST     0.00 knots Slack
Mon -- 09:29 PM PST     1.03 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-0.4-0.6-0.6-0.4-0.20.10.50.70.70.50.1-0.5-1-1.3-1.3-1.1-0.7-0.20.30.8110.8

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Eureka, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Eureka, 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.