Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
Samoa, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:30AMSunset 8:09PM Tuesday August 20, 2019 9:12 AM PDT (16:12 UTC) Moonrise 9:57PMMoonset 10:17AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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 227 pm pst Fri feb 15 2019 a marine weather statement has been issued for the following areas... Waters from pt. St. George to cape mendocino ca out 60 nm... Humboldt bay bar... At 222 pm pst, doppler radar indicated lines of showers and isolated Thunderstorms over the waters north of cape mendocino, capable of producing winds to around 30 knots and small hail. This activity was moving east-northeast at 30 knots. Precautionary/preparedness actions... Water spouts are possible along with stronger Thunderstorms... Locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4174 12417 4154 12405 4153 12405 4154 12408 4124 12410 4114 12416 4089 12413 4084 12418 4086 12410 4082 12410 4065 12431 4060 12418 4062 12424 4063 12432 4045 12440 4047 12579 4129 12555 4168 12568 4178 12579
PZZ400 815 Am Pdt Tue Aug 20 2019
Synopsis for northern california waters..A sub advisory wind and sea state will persist through Wednesday night. Northerlies will then increase on Thursday and continue into the weekend, especially across the outer waters.


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 201119
afdeka
area forecast discussion
national weather service eureka ca
419 am pdt Tue aug 20 2019

Synopsis Seasonable temperatures will persist through mid
week. In addition, there is a chance for light rain on Wednesday
over del norte county. Thereafter warmer temperatures are
expected across the interior during late week.

Discussion Weak troughing will aid in maintaining seasonable
temperatures and generally pleasant conditions across nw
california through mid week. Coastal stratus has become widespread
across the coast Tuesday morning. Patchy fog and drizzle may
accompany the stratus along the humboldt del norte coasts through
mid day, with localized clearing possible during the afternoon.

Model guidance continues to show an upper trough moving inland
over the pacific northwest during Wednesday, and that feature is
forecast to drive a weak cold front towards the northern portion
of the area. The front will be accompanied by an unseasonably
moist air mass characterized by precipitable water values
approaching two inches, lending increased confidence in light rain
potential across the far north Wednesday afternoon evening.

The trough will quickly depart Wednesday night, leaving the area
beneath quasi-zonal flow during the end of the week. Expect
interior temperatures to gradually trend upward during this time
as heights slowly rise and 850 mb temps increase from the mid to
upper teens into the low 20s c. No additional precipitation is
expected from Thursday into early next week.

Cb jmg

Aviation A deepening marine layer has contributed widespread
stratus and fog along the coast this morning with ifr conditions
observed at kcec and kacv. The ifr conditions should improve to
MVFR by late morning with a brief period ofVFR conditions in the
afternoon. Inland airfields will continue to see predominantlyVFR
conditions through the period.

Marine A mix of north and south winds is being observed off
the coast this morning but speeds remain light. This pattern will
continue with mainly light and variable winds and relatively calm
seas across the waters today. A more widespread direction change
will occur on Wednesday ahead of an approaching front, with a
period of moderate to fresh breezes possible across the far
northern portions of the area. Northerlies will quickly return in
the wake of the front, with the next round of small craft
advisories likely needed by Thursday morning as short period seas
begin to ramp up again. The northerly wind regime and elevated
seas then look to persist at least through the weekend.

Additionally, a pair of small mid-period swells will continue to
move through the waters from the northwest for the next few days.

Cba jt

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 3 mi97 min 55°F1017.5 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi43 min 55°F4 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 19 mi43 min SE 1.9 G 3.9 57°F1018.1 hPa
46213 - Cape Mendocino, CA (094) 46 mi43 min 54°F6 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 mi80 minN 010.00 miPartly Cloudy55°F53°F93%1017.8 hPa
Fortuna Rohnerville Airport, CA18 mi78 minN 00.75 miOvercast55°F55°F100%1017.6 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrW4W5W8W7W6NW7NW6NW7W4W4CalmN4CalmCalmCalmCalmSE3CalmE3CalmCalmCalmCalmCalm
1 day agoS4SW7SW9SW5SW9SW10SW7SW5W4CalmCalmCalmCalmE3CalmCalmE3CalmCalmE3CalmCalmCalmSW3
2 days agoNW5NW6W5NW7W7NW14NW17NW17NW17NW11N5CalmS5S4S4S4S6S8SE6E3NE4CalmW3SW4

Tide / Current Tables for Eureka, Humboldt Bay, California
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Eureka
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Tue -- 03:44 AM PDT     5.97 feet High Tide
Tue -- 06:31 AM PDT     Sunrise
Tue -- 09:57 AM PDT     1.22 feet Low Tide
Tue -- 11:17 AM PDT     Moonset
Tue -- 04:23 PM PDT     6.32 feet High Tide
Tue -- 08:07 PM PDT     Sunset
Tue -- 10:32 PM PDT     1.77 feet Low Tide
Tue -- 10:56 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.54.65.45.865.54.63.42.31.51.21.72.845.15.96.36.25.54.53.42.51.91.9

Tide / Current Tables for Fields Landing, Humboldt Bay, California
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Fields Landing
Click for Map
Tue -- 03:07 AM PDT     5.64 feet High Tide
Tue -- 06:31 AM PDT     Sunrise
Tue -- 09:33 AM PDT     1.14 feet Low Tide
Tue -- 11:17 AM PDT     Moonset
Tue -- 03:54 PM PDT     6.04 feet High Tide
Tue -- 08:07 PM PDT     Sunset
Tue -- 10:14 PM PDT     1.88 feet Low Tide
Tue -- 10:57 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.64.65.35.65.54.83.92.81.81.21.21.82.845.15.865.854.13.12.31.92

Weather Map and Satellite Images
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wmap_P
GOES 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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Disclaimer:
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 numerious 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.