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Marine Weather and Tides Myrtle, 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 6:36AM

Sunset 7:56PM

Wednesday April 14, 2021 3:50 AM PDT (10:50 UTC)

Moonrise 7:07AM

Moonset 9:41PM

Illumination 6%

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 Myrtle, CA

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Area Discussion for - Eureka, CA

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FXUS66 KEKA 132138 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 238 PM PDT Tue Apr 13 2021

SYNOPSIS. Strong breezy winds continue through tonight but will ease by tomorrow afternoon. Frost advisories are in place for portions of Humboldt and Mendocino as temperatures overnight reduce with moisture lingering at low points.

DISCUSSION. As an upper level low continues to develop over the Great Basin, increases in Northerlies winds with low RH values are a concern. Strong breezy winds continue tonight with low RH values which could increase fire danger. Tonight there is the potential for frost in the interior valleys and so a frost advisory has been issued for portions of Humboldt and Mendocino. Areas of Trinity county may also get frost, especially near Weaverville and Douglas city where growing season has yet to commence.

Wednesday through Thursday the upper level low remains over the great basin but starts to weaken. This will allow the winds to diminish, but temperatures will remain mainly in the 60s to the low 70s, warmest in the inland valleys. Wednesday night with lighter winds frost looks more likely and additional advisories may be needed. The coast may see a return of stratus which would prevent frost, but confidence is low on this and have not added it to the forecast yet. Thursday inland temperatures may warm a few degrees, but with the low nearby they are not expected to warm much.

Friday and into the weekend the ensembles are in good agreement on a strong ridge building over the west. Most inland valleys will see temperatures in the upper 70s Friday. Temperatures will continue to climb into the weekend withs highs around 80 on Saturday and mid 80s possible on Sunday. The ensembles are in good agreement on the ridge of high pressure and the warm temperatures and confidence is higher than normal on this. There is still some uncertainty in the local effects and in this case that is mainly the cloud cover at the coast. This could keep temperatures cooler than currently forecast.

Early next week the ensembles are showing the ridge starting to break down. The challenge will be how quickly this occurs and the ensembles are showing low confidence in the timing of it breaking down. Some of the ensemble clusters keep the ridge on Tuesday and others break it down more quickly. One of the clusters even brings some rain on Tuesday. /MKK /EYS

AVIATION. Some lingering overnight patchy fog and stratus quickly dissipated this morning as widespread VFR conditions took over. Gusty northerly surface winds will be maintained overnight along the coast. Winds at near 2000 ft AGL will turn northeasterly up to 30 kts overnight, warranting the addition of LLWS for the TAFs. The dry offshore flow should finally quell stratus formation tonight. The periphery of an upper-low looks to create some harmless elevated inland afternoon cumulus/mid-level cloud formation tomorrow, including at KUKI. Northerly winds will begin a weakening trend tomorrow.

MARINE. The tight coastal pressure gradient responsible for the strong northerlies from the combination of high pressure offshore and persistent deep troughing over the Great Basin will become enervated as both systems slowly breakdown. Gale Warnings remain in effect through late tonight for the outer waters. The strongest winds will generally remain farther offshore, but steep wind generated seas will continue to propagate into the nearshore waters and create hazardous conditions through tonight. A Hazardous Seas Warning therefore remains in effect through late tonight for the inner zones. Small Craft advisory conditions will likely remain this week and into Thursday as the gradient slowly unwinds. Seas will continue to be primarily locally generated for this week, responding to fluctuations in nearshore northerly winds. A clipping shortwave may quickly invigorate the winds over northern portions of the Northern Outer waters beginning tomorrow evening before quickly backing off by the early Thursday morning.

EKA WATCHES/WARNINGS/ADVISORIES. CA . Frost Advisory from 3 AM to 9 AM PDT Wednesday for CAZ106-111.

NORTHWEST CALIFORNIA COASTAL WATERS . Hazardous Seas Warning until 3 AM PDT Wednesday for PZZ450.

Gale Warning until 3 AM PDT Wednesday for PZZ470-475.

Hazardous Seas Warning until 9 PM PDT this evening for PZZ455.



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

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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
HBXC1	3 mi	51 min			48°F
HBYC1 - 9418767 - North Spit, CA	5 mi	75 min			48°F		1013.1 hPa
NJLC1	6 mi	87 min	SE 5.1 G 6	43°F
46244 - Humboldt Bay, North Spit, CA	13 mi	55 min			49°F	8 ft
TDPC1	18 mi	51 min			47°F
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA	21 mi	31 min	NNE 3.9 G 5.8	48°F	49°F		1012.8 hPa	46°F
46213 - Cape Mendocino, CA (094)	47 mi	25 min			49°F	9 ft

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
Arcata / Eureka, Arcata Airport, CA	13 mi	58 min	N 0	9.00 mi	Fair	38°F	36°F	93%	1013.5 hPa
Fortuna Rohnerville Airport, CA	17 mi	61 min	SE 11	10.00 mi	Fair	37°F	37°F	100%	1012.9 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)

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Tide / Current Tables for Eureka Slough Bridge, Humboldt Bay, California

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Tide / Current Tables for Humboldt Bay Entrance, California

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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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