Saturday, November28, 2020
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Marine Weather and Tides
Alderpoint, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:16AMSunset 4:51PM Friday November 27, 2020 11:42 PM PST (07:42 UTC) Moonrise 3:40PMMoonset 4:31AM Illumination 96% 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- 800 Pm Pst Fri Nov 27 2020
Tonight..SE winds 5 kt. Waves nw 8 ft at 16 seconds.
Sat..NW winds 5 to 10 kt. Waves N 3 ft at 5 seconds...and nw 8 ft at 15 seconds.
Sat night..NE winds 5 to 10 kt. Waves nw 7 ft at 13 seconds.
Sun..N winds 5 kt. Waves nw 7 ft at 13 seconds.
Sun night..N winds 5 kt. Waves nw 7 ft at 15 seconds.
Mon..N winds 5 to 15 kt. Waves nw 12 ft at 17 seconds.
Tue..N winds 5 to 10 kt. Waves nw 9 ft at 14 seconds.
Wed..E winds 5 kt. Waves N 3 ft at 8 seconds...and nw 5 ft at 21 seconds.
PZZ400 800 Pm Pst Fri Nov 27 2020
Synopsis for northern california waters..A series of mid to long-period northwest swells will move through the waters through the middle of next week, with the largest swell entering the waters on Monday.


7 Day Forecast for Marine Location Near Alderpoint, CA
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location: 40.06, -123.52     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 272301 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 301 PM PST Fri Nov 27 2020

SYNOPSIS. A ridge of high pressure will continue to bring dry conditions and cold overnight low temperatures to northwest California through this weekend. There will be a chance for light rain Sunday night and Monday in Del Norte and Humboldt counties as a weakening front moves through the region.

DISCUSSION. Dry conditions will persist through Sunday as ridging remains in place over the west coast. This will result in cold overnight low temperatures with frost likely. There may be some low cloudiness and patchy fog along the coast late tonight, but don't feel that it will be enough to prevent frost formation at this time. As a result, another Frost Advisory has been issued for tonight and early Saturday morning.

A weakening front will bring increased cloud cover and a chance of rain to the region Sunday night into Monday. Models continue to show only light rain possible with the best chances in Del Norte County. Beyond this passing front, dry conditions are forecast to return for Tuesday and Wednesday and likely continue at least through Friday. /RPA&SEC

AVIATION. Subsidence continues as ridging and high pressure persist over NW California. VFR conditions are expected until this evening, when coastal marine clouds are projected to fill in. Hi resolution models have clouds forming sooner offshore than current observations show yet, satellite imagery shows marine stratus gaining density. MVFR is possible tonight through Saturday morning at the coastal terminals. A weakening front will bring increased cloud cover and a slight chance of rain to the region Sunday night into Monday. Trends continue to show only light rain possible with the best chances near KCEC. KUKI will be isolated from the aforementioned rain with VFR and calm winds for the TAF period. /EYS

MARINE. A diminishing NW swell persist through the offshore waters, declining in steepness into average swell energy. A fresh NW swell around 7 to 9 feet at 16 seconds, is expected to move through the area tonight. This swell may reduce in period, making it steeper, but not hazard or headline worthy. An additional NW swell around 13 feet at 17 seconds, is expected to arrive Monday morning. A Small Craft Advisory or Hazardous Seas Watch may be needed as the swell nears warning threshold. Even further in advance is the possibility of a sneaker wave threat on December 2nd, which will require monitoring to assess its validity. /EYS

EKA WATCHES/WARNINGS/ADVISORIES. CA . Frost Advisory from midnight tonight to 9 AM Saturday for CAZ101>103-109.

NORTHWEST CALIFORNIA COASTAL WATERS . None.

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
HBYC1 - 9418767 - North Spit, CA 61 mi66 min 51°F1024.3 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 62 mi42 min SE 5.8 G 9.7 1023.9 hPa (+0.6)

Wind History for North Spit, Humboldt Bay, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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Last 24hrS4W7NW7W9W12NW8W6W5W6CalmCalmNW5CalmCalmCalmNW6W4CalmE5CalmCalmSE6E6SE5
1 day agoCalmS6CalmCalmCalmS4SE5CalmCalmCalmS5SE4CalmCalmCalmCalmCalmCalmCalmSE5SE6SE6----
2 days agoSE8S5CalmNW6NW7NW9NW7W5SE4SE7SE9SE10SE11SE7CalmSE6SE7SE7SE5SE6SE6SE7S7SE7

Tide / Current Tables for Shelter Cove, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Shelter Cove
Click for Map
Sat -- 03:11 AM PST     2.31 feet Low Tide
Sat -- 05:33 AM PST     Moonset
Sat -- 07:16 AM PST     Sunrise
Sat -- 09:05 AM PST     6.14 feet High Tide
Sat -- 04:08 PM PST     Moonrise
Sat -- 04:12 PM PST     0.03 feet Low Tide
Sat -- 04:52 PM PST     Sunset
Sat -- 10:46 PM PST     4.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.93.22.62.32.53.1455.86.15.95.242.61.30.400.20.91.92.93.94.54.7

Tide / Current Tables for Westport, California
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Westport
Click for Map
Sat -- 03:06 AM PST     2.21 feet Low Tide
Sat -- 05:31 AM PST     Moonset
Sat -- 07:14 AM PST     Sunrise
Sat -- 09:13 AM PST     5.84 feet High Tide
Sat -- 04:07 PM PST     -0.07 feet Low Tide
Sat -- 04:08 PM PST     Moonrise
Sat -- 04:52 PM PST     Sunset
Sat -- 10:54 PM PST     4.39 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.732.52.22.433.84.75.55.85.753.82.41.10.3-0.10.10.81.72.73.64.24.4

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
Ground Weather Radar Station Eureka, 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 numerous 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.