Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Manila, 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 7:10AMSunset 4:55PM Tuesday November 21, 2017 9:43 AM PST (17:43 UTC) Moonrise 9:49AMMoonset 7:40PM Illumination 9% 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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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 849 Am Pst Tue Nov 21 2017
Synopsis for northern california waters..Fresh to near gale winds will continue offshore through mid week as a series of fronts approach the west coast. As a result, seas will remain steep and elevated under sustained southerly winds. Winds should start to lay down on Thursday; however, moderate southwest and northwest swells will continue to produce uncomfortable conditions through the end of the week.

7 Day Forecast for Marine Location Near Manila, CA
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location: 40.83, -124.16     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 211134
afdeka
area forecast discussion
national weather service eureka ca
334 am pst Tue nov 21 2017

Synopsis Mainly dry weather and cloudy skies are expected
today with occasional light rain possible this afternoon in the
north. Wednesday and Thursday will continue to see unsettled
weather with cloudy skies and occasional light rain. Friday looks
mainly dry before another system brings rain for the weekend.

Discussion The atmospheric river and warm frontal boundary that
brought significant rain to the area yesterday have moved out of
the area. Water vapor satellite continues to shows a plume of
moisture off the coast and a ridge over the west coast. This has
brought a very warm and moist airmass to northwest ca this
morning. Along the coast temperatures are in the upper 50s to
middle 60s, while temperatures inland are somewhat cooler. Breezy
south winds are also impacting the area. Some gusts to 45 mph are
possible over the higher peaks of del norte county. These will
diminish slightly in the afternoon.

Mainly dry conditions are expected this morning although clouds
will persist and some light rain or drizzle is possible over the
higher terrain. Currently there is a shortwave well off the coast
riding up the plume of moisture. This afternoon the GFS has this
wave moving up through the southwest flow and pushing the moisture
plume and some precip onshore in humboldt and del norte counties.

Tonight the moisture plume moves back offshore, but clouds and
warm temperatures will persist. Some fog is possible, especially
in mendocino county if the high clouds clear out a bit.

Wednesday and Thursday the GFS continues to the GFS continues to
show subtle waves in the flow bringing occasional light precip to
the much of the area. Confidence is low on the exact timing and
strength of each of these waves, but due to the moist airmass
precip looks likely at some point.

Friday the ridge builds a bit and most of the area is expected
to see dry weather. There is still a slight chance of rain in the
forecast this is mainly due to the possibility of the systems on
either side of this window speeding up or slowing down. Partial
clearing is possible, but confidence is low on that as well.

Friday night into the weekend another system moves onshore.

Initially a warm front passes through the area Saturday, followed
by a cold front Saturday night and another one on Sunday. The gfs
is colder with this second system than the ecmwf. There is the
potential for snow down to hwy pass levels in trinity county. Mkk

Aviation PrevailingVFR conditions can be expected at most
terminals between 12z Tuesday and 12z Wednesday, with a few
exceptions. Low clouds and mist across interior valleys, including
near uki, may result in periodic lifr ceilings early in the morning
but should improve shortly after sunrise. Along the coast, brief
MVFR ceilings will be possible during the afternoon and evening
along with some light rain. In addition, coastal terminals will
flirt with llws criteria for nearly the entire 24 hour period,
likely maintaining near 30 kt of wind shear between 0 and 2000 ft
agl with minor fluctuations. Brc

Marine Southerly to southeasterly winds will continue to increase
across the waters this morning as a warm front lifts to the north of
the area and a cold front slowly approaches from the west. Winds
will peak during the afternoon, reaching near gale strength across
the waters 10+nm offshore and north of CAPE mendocino. Waters south
of the CAPE and closer to shore will remain more sheltered from
these stronger gales, but will be moderately breezy nonetheless.

These southerlies will result in building steep seas, particularly
in the northern offshore areas with the strongest winds.

Overnight Tuesday, winds will weaken slightly, but will remain fresh
to strong through late Wednesday. Meanwhile, both a fresh southwest
swell and a longer period northwest swell will move through the
waters at this time, and the end result will be a chaotic and
uncomfortable sea state that will last through Wednesday night.

Winds will weaken Thursday and allow the steeper southerly seas to
settle, but the previously mentioned swells will maintain improved
but still somewhat uncomfortable conditions through the end of the
week.

On Saturday, another cold front will bring a return of strong
southerlies, and this will be followed closely by a building long
period northwest swell. Brc

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

small craft advisory until 5 am pst early this morning for
pzz470.

Gale warning from 5 am early this morning to 4 pm pst this
afternoon for pzz470.

Small craft advisory until 4 am pst Wednesday for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 5 mi68 min S 20 G 24 69°F 55°F1016.6 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi44 min 55°F6 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi54 min S 18 G 21 62°F 55°F6 ft1015.3 hPa (-0.4)56°F
46213 - Cape Mendocino, CA (094) 48 mi52 min 58°F7 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, CA12 mi51 minSE 1110.00 miA Few Clouds70°F50°F49%1016.4 hPa
Fortuna Rohnerville Airport, CA19 mi69 minSE 17 G 2410.00 miA Few Clouds66°F53°F64%1017.3 hPa

Wind History from ACV (wind in knots)
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Last 24hrS9SE10SE9SE10SE7SE8SE9SE9SE8SE10S7S3E3S6S3SE5SE8E12
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1 day agoE43SE4CalmNW4CalmE4E3E6E5SE8
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2 days agoE4E4NW5W5CalmSW4W4CalmE3CalmCalmE3E3E3SE4E5E3E6E4E4E4E5E3E4

Tide / Current Tables for Samoa, Humboldt Bay, California
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Samoa
Click for Map
Tue -- 02:10 AM PST     6.03 feet High Tide
Tue -- 06:58 AM PST     3.42 feet Low Tide
Tue -- 07:11 AM PST     Sunrise
Tue -- 09:48 AM PST     Moonrise
Tue -- 12:58 PM PST     7.34 feet High Tide
Tue -- 04:53 PM PST     Sunset
Tue -- 07:40 PM PST     Moonset
Tue -- 07:49 PM PST     -0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.75.665.85.24.43.73.43.74.55.56.47.17.375.94.42.61.10.1-0.20.31.32.6

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Tue -- 01:52 AM PST     4.83 feet High Tide
Tue -- 07:02 AM PST     3.14 feet Low Tide
Tue -- 07:11 AM PST     Sunrise
Tue -- 09:48 AM PST     Moonrise
Tue -- 12:31 PM PST     6.06 feet High Tide
Tue -- 04:54 PM PST     Sunset
Tue -- 07:41 PM PST     Moonset
Tue -- 07:56 PM PST     -0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
44.64.84.64.23.73.33.13.344.85.5665.54.63.420.8-0-0.30.112.2

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 (12,3,4,5)
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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.