Monday, September25, 2017 L-36.com


Marine Weather and Tides
Samoa, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:06AMSunset 7:10PM Sunday September 24, 2017 9:12 PM PDT (04:12 UTC) Moonrise 10:28AMMoonset 9:03PM Illumination 20% 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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This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ410 754 Am Pdt Thu Sep 7 2017
.a strong Thunderstorm over the waters... The areas affected include... Coastal waters from pt. St. George to cape mendocino ca out to 50... At 751 am pdt...doppler radar indicated Thunderstorms... Capable of producing local winds to around 30 knots and small hail. These storms are moving to the northwest at 25 knots. These Thunderstorms will continue through at least mid morning. 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 this storm passes. && lat...lon 4174 12417 4160 12410 4114 12416 4104 12412 4077 12423 4076 12423 4081 12418 4081 12417 4069 12422 4071 12426 4065 12431 4063 12428 4062 12426 4061 12433 4045 12441 4052 12578 4178 12499 4178 12426
PZZ400 850 Pm Pdt Sun Sep 24 2017
Synopsis for northern california waters..Surface high pressure over the eastern pacific ocean and a thermal trough over interior california will result in strong to near gale force northerly winds over portions of the coastal waters through Tuesday. Light winds and low seas will return Wednesday through the end of the work 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 242306
afdeka
area forecast discussion
national weather service eureka ca
406 pm pdt Sun sep 24 2017

Synopsis Warm, sunny dry conditions are expected throughout
the area Monday for the foreseeable future, particularly Monday
through Wednesday.

Discussion After a pleasantly warm day today temperatures will
continue to rise as high pressure aloft slowly builds across the
west coast. Overnight temperatures will be quite cool across the
interior tonight once again, although likely slightly warmer than
they were Saturday night. As a result, hayfork valley may see
some more patchy frost early Monday morning, but this should be
somewhat localized. This should be the last of the frost, as
afternoon temperatures are expected to soar into the mid 80s to
low 90s on Monday, and even warmer Tuesday and Wednesday. While
the valleys will continue to see efficient radiative cooling and
cool air drainage, temperatures will finally be too warm for frost
overnight. While the warmest days throughout the interior are
expected to occur Tuesday and Wednesday, above normal temperatures
are expected to linger through the end of the week.

Along the coast, mostly sunny skies will continue to persist as
nocturnal offshore flow gradually increases through the week.

Temperatures will also steadily warm as the inland thermal trough
gradually shifts offshore. The warmest two days are expected to be
Tuesday and Wednesday thanks to this and a combination of
persistent northeast winds, and as a result temperatures will
likely rise well into the 70s. The marine layer should regain
control of the coast Thursday through the end of the week, cooling
coastal temperatures back down to near normal. Brc

Aviation Generally light winds will persist today with
northwest california under an upper level ridge. Most areas will
remainVFR though some ifr or lifr clouds may develop north of
cape mendocino tonight as temperatures cool. Easterly winds aloft
in southern mendocino county could bring weak wind shear issues at
uki but uncertainty is too high to include in the TAF at this
time. Better chances for wind shear at all the terminals will
occur Tuesday night when strong easterly winds at 1500-2500 feet
develop. Rpa

Marine An upper level ridge over the west coast will allow
surface high pressure to build over the eastern pacific ocean
while a thermal trough intensifies over the interior portion of
california. Northerly winds will continue to increase through
Monday afternoon with near gale conditions expected in the two
outer water zones. Some gusts to over small craft criteria will be
possible in the two inner water zones Monday afternoon, along
with the potential for some of the steep seas to propagate into
the area. Have opted to not expand the small craft advisories into
the inner waters for Monday afternoon because winds have remained
fairly light at the buoys today possibly indicating that winds
won't be as strong as the models are indicating for tomorrow.

Winds and seas will diminish substantially on Wednesday as the
thermal trough moves off the coast. Winds will likely turn out of
the south mid to late week but remain generally light. Rpa

Fire weather A warming and drying trend that began today will
continue through the week, in addition to increasing northeasterly
winds. Temperatures Monday will increase to slightly above
normal, and well above normal Tuesday and Wednesday, which will
also result in low afternoon humidity. Meanwhile, offshore winds
will steadily increase each night, with the strongest winds
expected Monday night through early Wednesday. These winds, which
are typically nocturnal in nature, will likely persist through the
day Tuesday, particularly along exposed ridges across mendocino,
lake, and eastern trinity counties. This will also result in
moderate to poor overnight recoveries. Periods of critical fire
weather will be possible during this time frame.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until 9 am pdt Wednesday for pzz470-475.

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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 mi96 min NNE 5.1 G 7 56°F 56°F1017.5 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi51 min 57°F5 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 19 mi82 min N 12 G 14 57°F 57°F5 ft1016.8 hPa (+0.5)55°F
46213 - Cape Mendocino, CA (094) 46 mi50 min 57°F5 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 mi19 minSSW 310.00 miFair55°F53°F93%1017.6 hPa
Fortuna Rohnerville Airport, CA18 mi37 minW 310.00 miFair54°F51°F94%1017.3 hPa

Wind History from ACV (wind in knots)
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Last 24hrE4SE5SE4SE4E4E3E3E3E4NE3CalmCalm3NW6NW54W4W7N9NW7NW10CalmSE4S3
1 day agoSE4SE4E4E4E3E3E4E3CalmE5E3CalmNW43NW8NW10NW14NW13NW12NW10N12N8N8SE3
2 days agoCalmCalmCalmCalmCalmCalmCalmE4E4E3E4E3CalmNW4W6NW8NW13NW16NW12NW13N93S3SE5

Tide / Current Tables for Eureka, Humboldt Bay, California
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Eureka
Click for Map
Mon -- 04:30 AM PDT     5.66 feet High Tide
Mon -- 07:07 AM PDT     Sunrise
Mon -- 09:41 AM PDT     2.73 feet Low Tide
Mon -- 12:24 PM PDT     Moonrise
Mon -- 04:03 PM PDT     6.64 feet High Tide
Mon -- 07:08 PM PDT     Sunset
Mon -- 10:39 PM PDT     0.92 feet Low Tide
Mon -- 10:40 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.13.24.25.15.65.65.14.23.42.92.83.244.95.86.46.66.45.54.32.91.81.11

Tide / Current Tables for Fields Landing, Humboldt Bay, California
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Fields Landing
Click for Map
Mon -- 04:03 AM PDT     5.28 feet High Tide
Mon -- 07:07 AM PDT     Sunrise
Mon -- 09:32 AM PDT     2.63 feet Low Tide
Mon -- 12:24 PM PDT     Moonrise
Mon -- 03:36 PM PDT     6.20 feet High Tide
Mon -- 07:08 PM PDT     Sunset
Mon -- 10:30 PM PDT     0.88 feet Low Tide
Mon -- 10:40 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.23.34.355.35.14.53.83.12.72.73.244.95.66.16.25.74.83.62.51.511

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Eureka, CA (0,6,7,8)
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Ground Weather Radar Station Eureka, CA
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weather_mapweather_map weather_map

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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.