Monday, December9, 2019
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Marine Weather and Tides
Little River, 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 7:18AMSunset 4:51PM Monday December 9, 2019 8:02 AM PST (16:02 UTC) Moonrise 3:32PMMoonset 4:39AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 243 Am Pst Mon Dec 9 2019
Today..SW winds 5 kt. Waves sw 3 ft at 6 seconds...and nw 6 ft at 15 seconds.
Tonight..SE winds 5 to 10 kt. Waves N 2 ft at 6 seconds...and nw 6 ft at 15 seconds.
Tue..SE winds 5 to 15 kt. Waves S 3 ft at 4 seconds...and W 7 ft at 16 seconds. Rain.
Tue night..SE winds 5 to 15 kt. Waves W 9 ft at 14 seconds.
Wed..SE winds 5 to 10 kt. Waves S 4 ft at 6 seconds...and W 9 ft at 17 seconds.
Thu..SE winds 5 to 10 kt. Waves W 16 ft at 17 seconds.
Fri..NW winds 5 kt. Waves W 15 ft at 16 seconds.
PZZ400 243 Am Pst Mon Dec 9 2019
Synopsis for northern california waters..Lower winds and seas will continue through Monday before the next frontal boundary brings moderate south winds and building seas on Tuesday. A large, long period west-northwesterly swell is forecast to impact the waters on Thursday and Friday.


7 Day Forecast for Marine Location Near Little River, CA
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location: 39.26, -123.75     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 091305 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 505 AM PST Mon Dec 9 2019

SYNOPSIS. Morning low clouds and areas of fog will give way to sunshine today. A weak front will bring light rain to northwest California Tuesday, followed by a brief period of high pressure on Wednesday, before an extended bout of wet weather begins on Wednesday night.

DISCUSSION. Fairly extensive low clouds and fog have enveloped almost all valleys in northwest California, and some marine layer cloudiness is covering portions of the coast this morning as well. Meanwhile, some weak offshore flow is helping to keep much of the Del Norte and Mendocino coast clearer. Expect most of these clouds and fog to lift and scatter by midday. However, with such a strong inversion under a highly amplified ridge of high pressure, the clouds may linger into the afternoon in some of the valleys and along the beaches as well. Either way, high pressure will provide stable and dry weather for at least today, with likely the sunniest day of the week for most locations, before the inevitable return to wet weather begins on Tuesday.

For Tuesday, a weakening surface cold front and 'split' upper level trough will approach from the west. Model guidance has consistently depicted a period of light rain through between the midday and evening hours. Rainfall amounts will likely range from a tenth of an inch to locally up to a half inch with this system. A southerly breeze will develop over the mountain ridges, but otherwise expect light winds today to continue during the passage of this system, and right through Wednesday. In the wake of the weak front, high pressure will likely rebuild across California on Wednesday both at the surface and aloft. This should allow for a mainly dry and mild day.

More wet weather will head our way for much of the period from Wednesday night through Saturday, with a series of fronts passing by. Between an intense upper- level low in the Gulf of Alaska and a strong ridge of high pressure off the coast of southern California, deep and moist westerly flow will support this wet period. That said, none of the individual systems passing through look particularly strong for northwest California. Rainfall may end up totaling more than a few inches over the mountains of northern Humboldt and Del Norte, with lesser amounts to the south. Strong winds are not expected, and snow levels will remain high until colder air starts to settle in from the north around Friday night. Even then, it appears doubtful that much precipitation is left around by the time the snow levels drop to our mountain passes later in the weekend. /AAD

AVIATION. Intermittent IFR ceilings have plagued Northwestern California overnight, although light offshores have cleared the Del Norte coastline early this morning. Farther south, IFR ceilings currently still in place are expected to dissolve around mid- morning as daytime heating mixes the lower atmosphere. Low clouds will likely return this evening, but may be short lived as high clouds from an approaching front move overhead late tonight and inhibit further development. /TDJ

MARINE. Light northerlies offshore this morning continue to diminish today and shift southerly tonight as a front approaches from the west. These look to increase to marginal SCY levels Tuesday afternoon, generating short period southerly seas around 6 ft at 6 seconds. Meanwhile, a W swell is expected to fill in on Tuesday, for combined seas of 9 to 11 ft by early Tuesday afternoon across the outer waters. Thus have lifted a small craft advisory for the outer waters in response for Tuesday.

Southerly winds drop below advisory levels for Wednesday but remain moderate before possibly accelerating to advisory levels again with another frontal passage on Thursday. A significant WNW swell still looks on track to steamroll the North Coast late this week, with models consistently showing the peak Thursday night of around 16 ft at 18 seconds, before slowly decaying through the weekend. /TDJ

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory from 9 AM to 9 PM PST Tuesday for PZZ470-475.



Visit us at https://www.weather.gov/eureka

Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka

For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 12 mi23 min NNE 3.9 G 5.8 51°F 56°F1021.5 hPa
ANVC1 - 9416841 - Arena Cove, CA 24 mi51 min NNE 1 G 2.9 49°F 53°F1021.6 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA30 mi67 minNW 410.00 miOvercast48°F45°F89%1021.6 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmSW5CalmW4NW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3NW4
1 day agoS6
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S6SE6SE6SE6SE4CalmS4S4SE3CalmS4CalmS4S5CalmN3
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Tide / Current Tables for Albion, California
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Albion
Click for Map
Mon -- 02:23 AM PST     2.16 feet Low Tide
Mon -- 04:39 AM PST     Moonset
Mon -- 07:22 AM PST     Sunrise
Mon -- 08:33 AM PST     5.91 feet High Tide
Mon -- 03:31 PM PST     0.04 feet Low Tide
Mon -- 03:31 PM PST     Moonrise
Mon -- 04:51 PM PST     Sunset
Mon -- 10:11 PM PST     4.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.12.52.22.22.73.54.55.35.85.95.34.331.70.70.10.10.61.42.33.344.34.2

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Mon -- 12:04 AM PST     -0.70 knots Max Ebb
Mon -- 03:27 AM PST     0.00 knots Slack
Mon -- 04:39 AM PST     Moonset
Mon -- 06:20 AM PST     0.80 knots Max Flood
Mon -- 07:23 AM PST     Sunrise
Mon -- 09:15 AM PST     -0.00 knots Slack
Mon -- 12:23 PM PST     -1.28 knots Max Ebb
Mon -- 03:31 PM PST     Moonrise
Mon -- 04:24 PM PST     0.00 knots Slack
Mon -- 04:51 PM PST     Sunset
Mon -- 07:22 PM PST     0.96 knots Max Flood
Mon -- 10:35 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.6-0.4-0.20.20.60.80.80.50.1-0.4-1-1.3-1.2-1-0.7-0.20.30.70.90.90.70.3-0.2

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    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 Eureka, CA (11,2,3,4)
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Ground Weather Radar Station Eureka, CA
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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.