Wednesday, January27, 2021
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Marine Weather and Tides
Fields Landing, 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.

Sunrise 7:29AMSunset 5:29PM Wednesday January 27, 2021 6:08 PM PST (02:08 UTC) Moonrise 4:25PMMoonset 7:03AM Illumination 100% Phase: Full Moon; Moon at 15 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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PZZ410 1119 Am Pdt Mon Sep 16 2019
.isolated strong Thunderstorms over the coastal waters... The areas affected include... Coastal waters from point saint george to cape mendocino ca out 60 nm... At 1114 am, doppler radar indicated a few strong Thunderstorms, capable of producing wind gusts to around 30 knots, from 5 nm northwest of orick to 45 nm west of patrick's point. These storms are moving southeast at 10 knots. Precautionary/preparedness actions... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms passes. && lat...lon 4174 12416 4145 12406 4123 12411 4114 12416 4105 12415 4106 12414 4102 12411 4070 12426 4071 12426 4058 12435 4083 12572 4096 12565 4178 12460 4178 12426
PZZ400 214 Pm Pst Wed Jan 27 2021
Synopsis for northern california waters..Fresh to strong southerly breezes, with portions of gale force gusts over the northern waters will gradually subside by evening into overnight. Steep hazardous seas will continue across the coastal waters through Thursday evening. A mid period westerly swell will move through the waters this evening. Another frontal system is expected on Friday, bringing southerly winds and small long-period northwesterly swell.


7 Day Forecast for Marine Location Near Fields Landing, CA
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location: 40.77, -124.25     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 272303 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 303 PM PST Wed Jan 27 2021

SYNOPSIS. Wet weather will continue as the atmospheric river gets assistance from an offshore low. Winds will begin to ease tonight. A break in the weather is expected for Friday, followed by more precipitation over the weekend and into early next week.

DISCUSSION. Short Term (Tonight through Friday) . Precipitation continued this morning as a short wave made its way across Northern California. Swaths of subtropical moisture continued to inundate the CWA, with help from an upper level low, just offshore of the Pacific NW. Large scale rotation of the low will continue to pump moisture into the area tonight, albeit with lighter QPF amounts. Instability with the upper trough will be conducive for showers and isolated thunderstorms across the coastal waters and adjacent land areas this evening, with lingering storms possible mainly S of Cape Mendocino after midnight. Several more inches of snow are likely tonight across interior mountains. Snow levels have been gradually rising through the day. However, snow levels in the valleys will drop again later tonight before rising again on Thursday. A Winter Weather Advisory will remain in effect through early morning hours across portions of the N interior, but Winter Storm Warnings have expired. A break in the weather is expected for Friday before more precipitation arrives Friday night. /EYS&SEC

Extended (Friday night through Tuesday). Over the weekend, confidence is increasing on the area beginning to feel the influence of a digging trough over the NE Pacific with light rainfall. Ensembles are showing some uncertainty in the timing of the trough to push eastward with the potential for greater rain chances. However, they have held to decent agreement on a weak AR stalling out over the area and lasting for 24 to 30 hours over the area. This system looks looks quite a bit warmer than the ones we have been seeing with snow levels rising over 4,000 feet. This is still a ways out, but there is the potential for some main steam river flooding with this system. /MKK

AVIATION. Light to heavy showers continue across the region, impacting the coastal terminals. Showers are expected to intensify by evening. Some stronger showers with thunder and small hail will be likely moving onshore. Rain is expected to return to UKI around 02Z. VFR to MVFR conditions with occasional dipping to IFR at times in periods are expected through the TAF period at all terminals. Gusty winds around 30 mph continue at KCEC, but these winds will diminish fairly quickly tonight.

MARINE. Fresh to strong southerly breezes will continue across the waters, with gale force gusts over portions of the northern waters through early evening. These will be followed by a gradually diminishing of winds overnight. Light to gentle northerlies will develop on Thursday and persist through Friday morning before southerlies redevelop ahead of the next approaching system later on Friday. Steep hazardous seas will pick up to around 17 to 19 feet at 16 seconds during the evening across the waters, mostly over the northern waters. A Hazardous Sea Warning is in effect for the northern zones through 05Z. Then, seas will gradually drop below 10 feet late Thursday. A Small Craft Advisory will be needed for all waters through late evening Thursday.

EKA WATCHES/WARNINGS/ADVISORIES. CA . Winter Weather Advisory until 4 AM Thursday for CAZ102-105>107.

NORTHWEST CALIFORNIA COASTAL WATERS . Hazardous Seas Warning until 9 PM this evening for PZZ450-470. Small Craft Advisory until 9 PM Thursday for PZZ455-475.

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
NJLC1 1 mi104 min S 19 G 21 49°F
HBYC1 - 9418767 - North Spit, CA 2 mi92 min 47°F1002.6 hPa
HBXC1 3 mi68 min 46°F
46244 - Humboldt Bay, North Spit, CA 10 mi42 min 51°F14 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 15 mi28 min SSE 18 G 25 47°F 50°F1002.4 hPa46°F
TDPC1 20 mi68 min 48°F
46213 - Cape Mendocino, CA (094) 42 mi42 min 51°F17 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fortuna Rohnerville Airport, CA16 mi18 minN 05.00 miOvercast46°F45°F93%1002.7 hPa
Arcata / Eureka, Arcata Airport, CA17 mi15 minSSW 14 G 184.00 miRain46°F41°F83%1003.9 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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2 days agoW7N9
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CalmNW6W6W5W5NW3N6NW7NW6NW3NW6W4SW4W5W4NW5NW6NW5NW14W7NW10Calm

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Wed -- 04:28 AM PST     3.39 feet Low Tide
Wed -- 07:02 AM PST     Moonset
Wed -- 07:31 AM PST     Sunrise
Wed -- 10:09 AM PST     6.69 feet High Tide
Wed -- 04:25 PM PST     Moonrise
Wed -- 05:28 PM PST     Sunset
Wed -- 05:40 PM PST     -0.97 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.64.443.73.43.53.94.75.66.36.76.55.74.52.91.3-0-0.8-0.9-0.30.82.13.44.3

Tide / Current Tables for Hookton Slough, Humboldt Bay, California
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Hookton Slough
Click for Map
Wed -- 12:07 AM PST     5.10 feet High Tide
Wed -- 04:46 AM PST     3.39 feet Low Tide
Wed -- 07:02 AM PST     Moonset
Wed -- 07:30 AM PST     Sunrise
Wed -- 10:33 AM PST     7.19 feet High Tide
Wed -- 04:25 PM PST     Moonrise
Wed -- 05:28 PM PST     Sunset
Wed -- 05:58 PM PST     -0.97 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.154.53.93.53.43.84.65.66.57.17.16.55.43.820.4-0.6-1-0.60.51.93.34.5

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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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.