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Marine Weather and Tides Shelter Cove, CA Version 3.4

NOTICE 1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

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Sunrise 6:24AM

Sunset 8:05PM

Thursday April 22, 2021 7:15 PM PDT (02:15 UTC)

Moonrise 1:58PM

Moonset 3:22AM

Illumination 85%

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.

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7 Day Forecast for Marine Location Near Shelter Cove, CA

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Area Discussion for - Eureka, CA

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FXUS66 KEKA 222237 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 337 PM PDT Thu Apr 22 2021

SYNOPSIS. Interior northwest California will be dry and warm through Friday, while cooler marine air will linger near the coast. Progressively cooler and wetter weather is in store for the weekend, with widespread rain and high mountain snow expected Sunday.

DISCUSSION. A few patches of marine layer stratus have lingered into the mid afternoon hours around Humboldt Bay and the lower Eel River Delta, as well as along the southern Mendocino Coast. We'll look for low clouds to start filling back this evening as onshore breezes relax. Those northerly winds are not as strong as yesterday, but still are keeping coastal areas on the cool side. Meanwhile, sunny and warm conditions persist throughout interior northwest California, with high temperatures in the 70s to around 80 degrees in the warmest interior valley locations.

An upper-level ridge axis will cross the West Coast as it shifts eastward Friday, resulting in continued dry and stable conditions. Offshore surface high pressure will weaken on Friday, allowing the pressure gradient to relax, which will limit afternoon northerly breezes, along with diurnal mixing, particularly near the coast. That probably won't help our chances for sunshine along the coast, as marine layer stratus will be less apt to clear out, while high clouds advect in aloft in advance of our approaching storm system. It should remain mostly sunny and warm across the interior on Friday, but not quite as warm as Thursday, as mid-level temperatures begin to cool. The leading shortwave and surface cold front will quickly approach Friday evening, ahead of an upper- level low tracking southeastward from the Aleutians. Spotty light rain will overspread much of our region as a result on Friday night, with the best chances closer to the Oregon border. Occasional light rain will last into Saturday, with mostly cloudy skies and much cooler high temperatures. A more substantial shot of beneficial rain will arrive for Saturday night through Sunday with the aforementioned upper low. With progressively colder air aloft, atmospheric profiles will favor a transition to showery precipitation Sunday afternoon and evening. Have not added it to the forecast yet, but would not rule out small hail or thunder during that time. Low-level temperatures may limit any small hail showers from being too impactful. Meanwhile, snow levels lowering toward 4000 feet on Sunday will allow for some mountain snow, with significant accumulations and travel impacts likely for Scott Mountain Summit on Highway 3, while most of our other highway passes remain wet.

Some showers may linger into Monday as a trailing shortwave passes through, but otherwise expect a drying trend with moderating temperatures through mid-week. Ensemble guidance through next weekend shows a substantial amount of spread, so while the bulk of guidance keeps us fairly mild with limited rainfall, do not have much confidence in any more specifics beyond that. /AAD

AVIATION. Marine stratus and low clouds have receded off of the coastal terminals this afternoon, shifting flight categories from IFR to MVFR or better. Winds at CEC will be northerly and gusty through this evening, but not nearly as strong as yesterday. MVFR to IFR ceilings will return tonight, and linger much of Friday, while winds will tend light and southerly. Expect similar conditions for ACV, with VFR conditions lasting into this evening before marine stratus returns toward 06Z. Fog and low clouds did advect up the Russian river this morning to briefly hinder visibility at KUKI, which looks to happen again overnight into Friday morning as a southerly push appears to be in the guidance. VFR/MVFR at KUKI until late tonight or early Friday morning as Fog makes its way up the valley. /EYS

MARINE. Gale force winds have weakened although a Hazardous Seas Warning is in place for the southern outer waters as conditions remain elevated. Northerlies will continue to be rather strong, ranging from fresh to strong breezes over most of the coastal waters. N winds will be generally weaker nearshore and Small Craft Advisories have been hoisted to cover that hazard. Winds will become southerly by early Saturday morning as a low pressure system approaches. Latest guidance shows southerlies topping out as fresh breezes over the northern outer waters. The sea state will likely remain chaotic through the rest of today as winds slowly weaken and some steep, short-period seas linger. Otherwise, a small westerly swell and a small southerly swell will impact portions of the waters this weekend. /JAW /EYS

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 10 AM PDT Friday for PZZ450-455.

Small Craft Advisory until noon PDT Friday for PZZ470.

Hazardous Seas Warning until 6 PM PDT this evening for PZZ475.



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

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46213 - Cape Mendocino, CA (094)	40 mi	49 min			50°F	7 ft
HBYC1 - 9418767 - North Spit, CA	52 mi	39 min			53°F		1016.8 hPa

Wind History for North Spit, Humboldt Bay, CA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Fortuna Rohnerville Airport, CA	36 mi	25 min	WNW 12 G 16	7.00 mi	A Few Clouds	50°F	46°F	88%	1016.3 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)

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Tide / Current Tables for Shelter Cove, California

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Tide / Current Tables for Punta Gorda, California Current

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Weather Map

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GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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Ground Weather Radar Station

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