Monday, April6, 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 6:50AMSunset 7:47PM Sunday April 5, 2020 11:07 PM PDT (06:07 UTC) Moonrise 4:03PMMoonset 4:54AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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 901 Pm Pdt Sun Apr 5 2020
Synopsis for northern california waters..Breezy west to southwest winds today will become lighter and more variable tonight. A stronger northerly wind regime is expected to develop late Monday and persist through much of the next week. Otherwise, a mid-period westerly swell will continue to move through the waters tonight.


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 052141 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 241 PM PDT Sun Apr 5 2020

SYNOPSIS. Showery weather will gradually dissipate going into early week. Otherwise, a series of cold mornings are expected Monday and Tuesday across interior valleys. Warm dry weather will then become probable during mid to late week.

DISCUSSION. A cold upper low was positioned immediately offshore from NWRN CA during Sunday afternoon. Waves of ascent will continue to rotate around the low through tonight and aid in periods of showers. However, shower coverage and intensity is forecast to gradually decrease during the night, such that heavy snow over southern Trinity County does not appear probable. Thus, the winter storm warning for southern portions of the county has been canceled. The warning remains in effect for northern Trinity until 11 PM tonight for elevations above 3500 feet . primary impacts will occur at Scott Mountain Summit on HWY 3.

Otherwise, visible satellite imagery depicts a convective environment across much of the region. Buoyancy profiles may be too marginal for thunderstorms in the EKA CWA, but lightning has been observed immediately to the east in Shasta County. Showers and skies are forecast to generally clear late tonight, which will favor a period of strong radiational cooling leading to frost and freeze conditions across interior valleys. A second round of frost/freeze will be possible once again during Tuesday morning.

Model guidance indicates the previously mentioned upper low will move south and east away from the region Tuesday and Wednesday. A dry subsident synoptic regime will subsequently develop across the area as an upper ridge builds over the NERN PAC. These conditions are expected to yield temperatures in the 60s and 70s during mid to late week, with a few valley locations in Mendocino County possibly hitting 80 F.

JMG

AVIATION. Intermittent light rain and showers brought mostly MVFR with bouts of IFR CIGS. With very little breaks in the ceiling, the limited solar insolation has kept the instability at bay in regards to afternoon convective showers. CIGS will improve for the most part to VFR through Monday morning, and the overnight shower coverage is expected to be great enough to discourage radiational induced lowered VIS. There is uncertainty in how much wrap-around moisture will be brought to the coastal terminals of KCEC and KACV in the early morning hours and should be monitored.

MARINE. A short-fuse small craft advisory has been issued for the northern inner waters this afternoon due to convectively enhanced south-southwest winds gusting from 25 to 30 kt. Otherwise, a westerly swell from 5 to 6 feet at 9 seconds will transition to steep and hazardous out of the north near 10 feet during Tuesday and Wednesday as strong northerly winds develop over the outer waters. The strong north winds may persist into next weekend.

JMG

EKA WATCHES/WARNINGS/ADVISORIES. CA . Frost Advisory from 1 AM to 8 AM PDT Monday for CAZ102-104>106- 109-112-113-115.

Winter Storm Warning until 11 PM PDT this evening for CAZ107.

Freeze Warning from 1 AM to 8 AM PDT Monday for CAZ110-111-114.

NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 5 PM PDT this afternoon for PZZ450.

Small Craft Advisory from 5 PM Monday to 4 PM PDT Tuesday for PZZ470.



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 mi68 min SE 14 G 19 46°F
HBYC1 - 9418767 - North Spit, CA 2 mi92 min 52°F1005.1 hPa
46244 - Humboldt Bay, North Spit, CA 10 mi38 min 52°F6 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 15 mi38 min SSE 18 G 23 47°F 52°F42°F
46213 - Cape Mendocino, CA (094) 42 mi38 min 52°F7 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 mi73 minESE 710.00 miPartly Cloudy41°F39°F93%1005.1 hPa
Arcata / Eureka, Arcata Airport, CA17 mi75 minN 010.00 miOvercast48°F37°F68%1005.5 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Mon -- 05:21 AM PDT     1.34 feet Low Tide
Mon -- 06:27 AM PDT     Moonset
Mon -- 06:51 AM PDT     Sunrise
Mon -- 11:09 AM PDT     6.39 feet High Tide
Mon -- 05:46 PM PDT     -0.18 feet Low Tide
Mon -- 06:20 PM PDT     Moonrise
Mon -- 07:47 PM PDT     Sunset
Mon -- 11:53 PM PDT     6.42 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.85.14.12.91.91.41.52.33.54.95.96.46.25.33.92.410-0.20.51.83.556.1

Tide / Current Tables for Hookton Slough, Humboldt Bay, California
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Hookton Slough
Click for Map
Mon -- 05:39 AM PDT     1.34 feet Low Tide
Mon -- 06:27 AM PDT     Moonset
Mon -- 06:51 AM PDT     Sunrise
Mon -- 11:33 AM PDT     6.89 feet High Tide
Mon -- 06:04 PM PDT     -0.18 feet Low Tide
Mon -- 06:19 PM PDT     Moonrise
Mon -- 07:47 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.45.94.83.52.31.51.423.34.766.86.86.14.83.11.50.3-0.20.21.43.14.96.2

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 (2,6,7,8)
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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.