Monday, January27, 2020
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Marine Weather and Tides
Samoa, 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 5:28PM Monday January 27, 2020 7:08 PM PST (03:08 UTC) Moonrise 9:25AMMoonset 8:21PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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PZZ415 Expires:201909161915;;886895 Fzus76 Keka 161819 Mwseka Marine Weather Statement National Weather Service Eureka Ca 1119 Am Pdt Mon Sep 16 2019 Pzz410-415-450-470-161915- 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 255 Pm Pst Mon Jan 27 2020
Synopsis for northern california waters..Southerly winds will increase through this evening, with the strongest winds north of cape mendocino. A large westerly swell will build across the waters through the middle of the week.


7 Day Forecast for Marine Location Near Samoa, CA
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location: 40.81, -124.19     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 272241 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 241 PM PST Mon Jan 27 2020

SYNOPSIS. Widespread rain is forecast to spread across northwest California tonight, with light showers lingering through Tuesday afternoon. Light rain will continue to be possible Wednesday and Thursday over Del Norte County, followed by drier and warmer conditions developing Friday and Saturday over the entire region.

DISCUSSION. Moist deep-layer onshore flow was occurring across the region Monday afternoon, and was aiding in very light precipitation development . mainly north of Eureka. Rainfall rates are forecast to increase tonight as an upper trough and associated surface frontal boundary approach the PAC NW. Rainfall intensity will peak near midnight over Del Norte and Humboldt Counties, with lighter rainfall spreading across Trinity and Mendocino Counties by 4 AM PST. Rainfall across the entire area will diminish during the remainder of Tuesday morning as the previously mentioned upper trough exits east inland.

Large-scale subsidence will generally prevail on Wednesday as heights build aloft. However, model guidance indicates light showers could spread/develop southeast of a shortwave midlevel ridge . particularly over the northern half of the EKA CWA. Similar conditions are forecast to occur on Thursday. Thereafter, heights are forecast to build strongly aloft on Friday which will lead to dry conditions across the region as well as warm high temperatures . with 60s to low 70s possible across interior valleys (especially in Mendocino County). Another day of warm/dry conditions is expected on Saturday, followed by the passage of a strong cold front on Sunday. Significantly colder temperatures will be likely behind the front by the start of the next work week.

JMG

AVIATION. Intermittent rain continued across much of the region Monday afternoon with widespread IFR conditions having been reported in the morning . especially at CEC and fog ladened valleys such as UKI. Other areas generally remained MVFR-VFR. Gusty surface winds also continued along the Del Norte Coast impacting CEC's airport. Rain will briefly taper before another weather system begins impacting the region again tonight . with more bouts of rain and lowering Cigs and Vis. Winds will remain gusty in the far North Coast and should pick up at ACV by mid- evening. Model guidance indicated higher probabilities for LLWS to precede the front overnight at the coast. Therefore, will continue LLWS forecast until around 12z at this time. /TA

MARINE. Southerly winds will increase this evening ahead of an approaching storm system. The strongest winds with both systems look to be confined near and N of Cape Mendocino with peak wind speeds occurring around midnight tonight. Large W swell will continue through the work week, with heights fluctuating a bit. This swell, along with higher short period seas over the N waters, will necessitate the continuation of the Small Craft Advisory through midday Wednesday. Lighter winds and lower swell heights are anticipated for late week and into the first half of the weekend. /SEC

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

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
HBYC1 - 9418767 - North Spit, CA 3 mi92 min 52°F1025.5 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi38 min 52°F11 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 19 mi38 min S 21 G 25 53°F 52°F1025.3 hPa52°F
46213 - Cape Mendocino, CA (094) 46 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, CA13 mi75 minSSE 510.00 miOvercast55°F50°F83%1025.6 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrE7SE8SE6SE8SE8SE8SE9SE6SE8SE6SE6SE5SE5SE8S8S6S6S8SW9S7S5S5S5SE4
1 day agoS8SE8S7S9S7SW10SW8SW6N3CalmSW3SW4S4S4S5SW9S8SW8SW8SW7S9S6CalmE3
2 days agoCalmCalmS6S6S7SE10S7SE9CalmCalmCalmE4CalmCalmCalmCalmCalmSE3W3CalmS4S9S9S8

Tide / Current Tables for Eureka, Humboldt Bay, California (2)
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Eureka
Click for Map
Mon -- 02:29 AM PST     6.17 feet High Tide
Mon -- 07:22 AM PST     2.94 feet Low Tide
Mon -- 07:31 AM PST     Sunrise
Mon -- 09:24 AM PST     Moonrise
Mon -- 01:21 PM PST     7.15 feet High Tide
Mon -- 05:27 PM PST     Sunset
Mon -- 08:01 PM PST     -0.24 feet Low Tide
Mon -- 08:21 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.45.56.16.15.54.53.533.13.74.65.76.67.176.24.83.11.40.2-0.20.11.12.4

Tide / Current Tables for Fields Landing, Humboldt Bay, California
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Fields Landing
Click for Map
Mon -- 02:02 AM PST     5.77 feet High Tide
Mon -- 07:13 AM PST     2.82 feet Low Tide
Mon -- 07:31 AM PST     Sunrise
Mon -- 09:24 AM PST     Moonrise
Mon -- 12:54 PM PST     6.68 feet High Tide
Mon -- 05:27 PM PST     Sunset
Mon -- 07:52 PM PST     -0.23 feet Low Tide
Mon -- 08:21 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.65.45.85.54.843.22.833.74.75.76.46.76.35.442.410.1-0.20.21.32.7

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 (22,6,7,8)
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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.