Page Links Change Location One Page Printer Page HELP AIS Default setup SAVE setting RECALL saved setting

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 6:55AM

Sunset 7:44PM

Thursday April 2, 2020 8:52 PM PDT (03:52 UTC)

Moonrise 12:26PM

Moonset 2:46AM

Illumination 76%

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.

---

---

7 Day Forecast for Marine Location Near Shelter Cove, CA

   Hourly   EDIT   Help

---

Area Discussion for - Eureka, CA

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KEKA 022112 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 212 PM PDT Thu Apr 2 2020

SYNOPSIS. Widespread frost and freeze conditions are expected once again tonight, followed by increasing cloudiness during Friday afternoon as a storm system approaches the region. Precipitation will spread across northwest California during Friday night and Saturday, with additional showers expected Sunday and Monday. Locally heavy mountain snow will be likely during the weekend, along with isolated hail showers across the coast.

DISCUSSION. Clear skies prevail over NWRN CA due to persistent large-scale subsidence. The dry atmosphere and a cool antecedent airmass will favor another night of strong radiational cooling resulting in interior valley freeze conditions, and slightly warmer frost conditions near the coast. Cloud cover will then increase during Friday afternoon ahead of a fast moving upper- level disturbance.

Precipitation associated with the disturbance is forecast to spread across the region during Friday night and continue through part of Saturday. Low-level upslope southerlies occurring over the Trinity Alps will aid in dynamically lowering freezing levels resulting in locally heavy snow. Thus, a winter storm watch has been issued for elevations above 3000 feet over northern portions of Trinity County . the watch includes Scott Mountain Summit on highway 3. Modest destabilization is also forecast to occur over Mendocino County during Saturday afternoon which will yield a non-zero threat for thunderstorms.

Model guidance shows a cold upper trough with 500 mb temperatures near -30 C digging south along the west coast Saturday night through Monday. That trough will aid in renewed shower development across the region, and also assist in lowering snow levels to the 2500-3500 foot level. Thus, potential travel impacts due to snow may occur for passes such as Berry Summit on highway 299, portions of highway 36 in Trinity County, and Scott Mountain Summit on highway 3. The threat for small hail showers and isolated thunderstorms will also exist along the coast eastward across portions of Mendocino and Lake Counties.

The previously mentioned cold upper trough is forecast to exit east away from the region by mid week. This will lead to dissipating shower activity, and the return to drier weather will be accompanied by moderating temperatures.

JMG

AVIATION. VFR conditions prevailed over aviation sites today with only a few cumulus popping up in the Eel Delta Valley and coastal hills. The pressure gradient along the North Coast remained tight enough today to produce breezy/gusty northerlies . particular at ACV. Winds at UKI have remained subdued today as the gradient has been slightly weaker in Eastern Mendocino. However, the pressure gradient will become more relaxed everywhere on Friday resulting in lighter winds. Skies will remain mostly clear overnight followed by increasing clouds Friday afternoon that will precede an approaching weather system Friday night. A minor threat of Vis/Cig reduction at ACV in the morning exists, however local mitigation conditions are most likely. At this point, will put a mention of ground fog in the morning period. Otherwise, dry conditions are expected through daytime Friday. /TA

MARINE. Breezy north winds and steep short period seas will continue across all zones this evening. Winds and seas will then decrease later tonight, with the exception of the southern outer waters, where wind enhancement off the tip of Cape Mendocino will maintain locally gusty winds and small craft seas. Those conditions will then dissipate Friday afternoon as a wind reversal takes place in response to an approaching area of low pressure. Southerly winds will subsequently develop Friday night into Saturday. Otherwise, a mid-period west swell is forecast to move through the waters this weekend.

TDJ/JMG

EKA WATCHES/WARNINGS/ADVISORIES. CA . Frost Advisory from 2 AM to 9 AM PDT Friday for CAZ101>106- 109>115.

Freeze Warning from 2 AM to 9 AM PDT Friday for CAZ102-105-106- 110-111-114.

Winter Storm Watch from late Friday night through late Saturday night for CAZ107.

NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 3 AM PDT Friday for PZZ455.

Small Craft Advisory until 9 AM PDT Friday for PZZ475.



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

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46213 - Cape Mendocino, CA (094)	40 mi	52 min			52°F	7 ft
HBYC1 - 9418767 - North Spit, CA	52 mi	76 min			53°F		1023.4 hPa

Wind History for North Spit, Humboldt Bay, CA

(wind in knots)    EDIT      (on/off)   Help

Last 24hr

1 day ago

2 days ago

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Fortuna Rohnerville Airport, CA	36 mi	2 hrs	NNW 12 G 16	10.00 mi	Mostly Cloudy	46°F	37°F	71%	1023 hPa

Link to 5 minute data for KFOT

Wind History from FOT (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 24hr

NW8

Calm

Calm

Calm

NW6

Calm

Calm

Calm

W5

Calm

SW5

Calm

Calm

W4

NW9

N9

NW14 G20

NW14

--

NW16 G21

NW15 G19

--

N16 G20

N12

1 day ago

Calm

Calm

NW5

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

NW3

N11

N13

NW13

NW15

NW17 G21

NW17 G22

NW18 G21

N14 G22

N14 G20

N8

2 days ago

NW8

W7

W4

Calm

E3

E5

SE5

Calm

SE6

SE7

Calm

SE3

SE3

Calm

Calm

Calm

NW12

NW11

NW10

NW11

N9

NW8

NW8

N7

---

Tide / Current Tables for Shelter Cove, California

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

Tide / Current Tables for Punta Gorda, California Current

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

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 (23,6,7,8)

      (on/off)   Help

---

Ground Weather Radar Station Eureka, CA

   (on/off)   Help

---

Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. 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.