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Marine Weather and Tides
Shelter Cove, CA

Version 3.4
NOTICE
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 5:45AMSunset 8:43PM Sunday May 31, 2020 9:06 PM PDT (04:06 UTC) Moonrise 1:52PMMoonset 1:56AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 803 Pm Pdt Sun May 31 2020
Tonight..NW winds 10 to 20 kt. Waves N 6 ft at 7 seconds... And S 3 ft at 15 seconds.
Mon..NW winds 10 to 20 kt. Gusts up to 30 kt. Waves N 8 ft at 7 seconds...and S 2 ft at 14 seconds.
Mon night..N winds 15 to 25 kt. Waves N 8 ft at 8 seconds... And S 2 ft at 13 seconds.
Tue..NW winds 10 to 20 kt. Waves N 7 ft at 8 seconds...and sw 2 ft at 16 seconds.
Tue night..N winds 10 to 20 kt. Waves N 8 ft at 8 seconds.
Wed..N winds 10 to 20 kt. Waves N 8 ft at 8 seconds...and nw 3 ft at 15 seconds.
Thu..NW winds 10 to 20 kt. Waves N 8 ft at 8 seconds...and nw 5 ft at 13 seconds.
Fri..NW winds 10 to 20 kt. Waves N 4 ft at 7 seconds...and nw 5 ft at 12 seconds.
PZZ400 803 Pm Pdt Sun May 31 2020
Synopsis for northern california waters..Elevated winds and steep, short-period seas will persist through the upcoming work week. Otherwise, a mid-period northwest swell will continue to slowly diminish through early in the week and a longer-period southwest swell will linger throughout portions of the waters through the middle of the week. In addition, another mid-period northwest swell will begin to move through waters late on Wednesday.


7 Day Forecast for Marine Location Near Shelter Cove, CA
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location: 40.03, -124.07     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 312130 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 230 PM PDT Sun May 31 2020

SYNOPSIS. Isolated showers will possible over the interior mountains today and Monday. Otherwise, dry weather is expected through much of the upcoming work week. Inland temperatures will steadily warm through the middle of the week. Onshore breezes should keep coastal areas seasonably cool.

DISCUSSION. A shortwave trough offshore is forecast to begin to split and bring some energy onshore late this afternoon and early this evening. Spotty showers will be possible over portions of eastern Del Norte, Trinity, and northeast Mendocino counties this afternoon and early this evening as a result. Confidence is low, but there will be a very slight chance for an isolated thunderstorm in the vicinity of the Trinity Horn late this afternoon and early this evening. An additional round of spotty showers will once again be possible in these areas Monday afternoon as an additional wave moves over the area during the late morning and afternoon time period. The SREF Calibrated Probabilities of Thunder product show a decent chance for some thunder Monday afternoon and early evening, so have introduced thunder chances for portions of Trinity and northeast Mendocino counties. Other areas will remain dry during this timeframe.

Both deterministic and ensemble guidance are in good agreement and show the southern part of the shortwave trough moving southward and forming a cut off low off the Southern California coast later on Monday and into Tuesday. Higher pressure will build toward the area early on Tuesday. As a result, interior temperatures will be on the rise again. Afternoon highs in the upper 80s to mid 90s will be possible starting on Tuesday and lasting through Thursday in some of the warmer interior valleys. Guidance then is in good agreement that another upper-level trough will impact the region from the northwest late on Friday and into the weekend. Exact details are still a little unclear, though cooler weather will return to the interior and the greatest precipitation chances will be in the northern part of the forecast area.

AVIATION. General drying conditions to occur today at TAF sites, but abiding moisture and mechanical uplift over the mountains could result in a few showers over interior airfields. Satellite imagery around 18Z indicated lots of retreating stratus with SCT- BKN higher clouds above. Marine stratus most likely to return overnight . especially at ACV. In Mendocino, UKI reported low clouds this morning with Cigs mostly MVFR, but briefly dipping into LIFR. Bufkit suggested a possibility of a few lower clouds back into UKI in the morning. The confidence level for low cloud CIGS is weak at this time. /TA

MARINE. Northerlies will range from mostly 15 to 25 knots across the outer waters and around Cape Mendocino and Point Saint George through the end of the upcoming work week. Small Craft Advisories are in place for these breezy winds and building short-period seas. A mid-period northwest swell will continue to slowly diminish through early in the week and a longer-period southwest swell will linger throughout portions of the waters through the middle of the week. Otherwise, another another mid- period northwest swell will move through waters starting late on Wednesday.

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 3 AM PDT Friday for Pzz450-475.



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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
46213 - Cape Mendocino, CA (094) 40 mi36 min 54°F7 ft
HBYC1 - 9418767 - North Spit, CA 52 mi90 min 51°F1016.3 hPa

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fortuna Rohnerville Airport, CA36 mi71 minWNW 610.00 miFair54°F50°F88%1016.3 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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Last 24hrW7W3W6NW5W5W3W6CalmCalmCalmCalmW3W3W3NW4NW3NW8W11W14
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1 day agoW5W4SW3CalmN5CalmCalmCalmNW3N4CalmS3CalmCalmNW4W3NW5NW4NW3NW4W5W6W4NW5
2 days agoW6W4Calm--------CalmCalmW3CalmNW4NW4NW4NW6NW8NW13NW14NW12NW8W8W9NW9NW5

Tide / Current Tables for Shelter Cove, California
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Shelter Cove
Click for Map
Mon -- 02:18 AM PDT     1.16 feet Low Tide
Mon -- 03:25 AM PDT     Moonset
Mon -- 05:49 AM PDT     Sunrise
Mon -- 07:59 AM PDT     4.49 feet High Tide
Mon -- 01:58 PM PDT     0.82 feet Low Tide
Mon -- 04:04 PM PDT     Moonrise
Mon -- 08:30 PM PDT     6.21 feet High Tide
Mon -- 08:39 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.41.61.21.31.92.73.64.24.54.33.62.71.71.10.81.123.24.45.56.16.15.54.4

Tide / Current Tables for Punta Gorda, California Current
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Punta Gorda
Click for Map
Mon -- 03:14 AM PDT     0.00 knots Slack
Mon -- 03:27 AM PDT     Moonset
Mon -- 05:49 AM PDT     Sunrise
Mon -- 06:01 AM PDT     0.84 knots Max Flood
Mon -- 08:57 AM PDT     -0.00 knots Slack
Mon -- 11:38 AM PDT     -0.97 knots Max Ebb
Mon -- 03:10 PM PDT     0.00 knots Slack
Mon -- 04:05 PM PDT     Moonrise
Mon -- 06:12 PM PDT     1.04 knots Max Flood
Mon -- 08:41 PM PDT     Sunset
Mon -- 09:15 PM PDT     -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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-1-0.8-0.5-0.10.40.70.80.70.5-0-0.6-0.9-1-0.8-0.5-0.10.40.8110.70.2-0.5-1

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 (0,6,7,8)
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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 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.