Tuesday, January28, 2020
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Marine Weather and Tides
Fields Landing, 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 7:29AMSunset 5:30PM Tuesday January 28, 2020 9:37 AM PST (17:37 UTC) Moonrise 9:51AMMoonset 9:20PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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 912 Am Pst Tue Jan 28 2020
Synopsis for northern california waters..Winds will continue to diminish today and remain light through the end of the week. South of cape mendocino, winds will become northerly while winds north of cape mendocino will remain largely southwesterly. A large westerly swell will continue through mid- week, when a new westerly swell train arrives.


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 281117 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 317 AM PST Tue Jan 28 2020

SYNOPSIS. Showers will continue across Northwest California through this afternoon. Light rain will continue to be possible Wednesday and Thursday over mainly Del Norte County, followed by warmer and drier conditions developing Friday and Saturday over the entire region. Rain is forecast to return late this weekend as a cold front moves across the area.

DISCUSSION. Satellite imagery shows the upper-level trough continuing to move over the Pacific Northwest this morning. An associated cold front will begin to move across Northwest California in the next hour or so. Rainfall intensities have peaked overnight ahead of the front, though convective showers will likely continue through much of the afternoon hours. Showers will taper off early this evening as the upper-level trough and associated frontal boundary pushes farther east. Given the likely convective nature of the showers this morning and afternoon, there is non-zero chance of an isolated thunderstorm in the northern part of the area, but that appears unlikely at this time. High pressure will build in to the region starting tonight. Wednesday will be mostly dry as a result, but a weak front will allow for some light showers to impact the northern part of the area late on Wednesday and into Thursday. Heights will continue to rise over the region during the latter part of the week, leading to dry conditions from late on Thursday through Saturday. Temperatures will also warm across the area during this time period, with highs likely in the 60s to low 70s across portions of the interior. Guidance then shows a strong cold front pushing across the area early on Sunday, likely bringing moderate to heavy rain back to Northwest California. Ensemble and deterministic guidance are in good agreement that the ridge will build back over the region early next week.

AVIATION. Showers will continue to impact ACV and CEC through Tuesday morning, becoming convective between 12 and 18Z. MVFR and periodic IFR ceilings and visibility reductions can be expected, and an occasional lightning strike can't be completely ruled out even though that appears unlikely. Showers will diminish during the afternoon, revealing VFR conditions that should largely continue through the night, although some patchy low clouds or ground fog will be possible overnight.

At UKI, MVFR ceilings will continue to impact the terminal through the late morning, with light rain expected as well. Ceilings and weather conditions are expected to improve during the afternoon, although some lingering scattered cumulus cloud cover will remain in the area all day. VFR conditions will persist through the evening, but some IFR to LIFR low clouds and fog are expected late tonight and Wednesday morning. /BRC

MARINE/BEACH HAZARDS. 20 to 25kt south winds will shift to the southwest early Tuesday morning, and will steadily diminish through the day. Light winds will then persist for the next week, with northerly winds roughly south of Cape Mendocino and southerly winds north of the Cape.

As a result, steep waves will steadily subside over the course of the day today, and seas will become largely dominated by a persistent 8 to 10 ft westerly swell. A larger, longer period swell will arrive in the waters late Wednesday night, boosting significant wave heights to 12 to 15 feet with a period between 16 and 18 seconds as the new swell initially arrives. In addition to generating hazardous ocean conditions for mariners, this swell will generate large breaking waves on area beaches and will likely increase the threat of sneaker waves Thursday.

This swell will linger in the waters through at least the end of the week, gradually subsiding back to around 8 to 10 feet by Friday. Strong northerly winds and steeper seas are expected Sunday behind a passing cold front. /BRC

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until noon PST Wednesday for PZZ450-455-470- 475.



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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 2 mi62 min 52°F1025 hPa
46244 - Humboldt Bay, North Spit, CA 10 mi38 min 52°F11 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 15 mi38 min S 14 G 16 53°F 52°F1025.1 hPa (+1.5)52°F
46213 - Cape Mendocino, CA (094) 42 mi38 min 53°F12 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA17 mi45 minS 710.00 miOvercast54°F50°F87%1025.4 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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Last 24hrCalmSW5SE3SW3NW5W6W6CalmW3E6SE6SW3E4E6E7S3SE9NW6NW12
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1 day agoCalmCalmCalmCalmCalmS3CalmCalmSE6SE6SE7E7SE8E10E11E15E15
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2 days agoCalmS4SE3SE3E5E6SE7SE5E8E11E8E9E11E6E8SE8SE9SE8E8E4CalmW10NW5Calm

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Tue -- 02:25 AM PST     5.15 feet High Tide
Tue -- 07:30 AM PST     Sunrise
Tue -- 07:58 AM PST     2.76 feet Low Tide
Tue -- 09:50 AM PST     Moonrise
Tue -- 01:25 PM PST     5.63 feet High Tide
Tue -- 05:29 PM PST     Sunset
Tue -- 08:28 PM PST     0.20 feet Low Tide
Tue -- 09:20 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.74.65.15.14.74.13.42.92.833.64.55.25.65.65.14.231.80.80.30.30.92

Tide / Current Tables for Hookton Slough, Humboldt Bay, California
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Hookton Slough
Click for Map
Tue -- 02:49 AM PST     5.65 feet High Tide
Tue -- 07:30 AM PST     Sunrise
Tue -- 08:16 AM PST     2.76 feet Low Tide
Tue -- 09:50 AM PST     Moonrise
Tue -- 01:49 PM PST     6.13 feet High Tide
Tue -- 05:29 PM PST     Sunset
Tue -- 08:46 PM PST     0.20 feet Low Tide
Tue -- 09:20 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.54.75.55.65.34.73.83.12.82.93.54.45.366.15.84.93.72.41.20.40.20.71.8

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 (12,3,4,5)
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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.