Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Ferndale, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:19AMSunset 8:09PM Tuesday April 25, 2017 9:43 AM PDT (16:43 UTC) Moonrise 5:14AMMoonset 6:24PM Illumination 0% Phase: New Moon; Moon at 29 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 1227 pm pdt Wed apr 19 2017 a marine weather statement has been issued for the following areas... Coastal waters from cape mendocino to pt. Arena ca out 10 nm... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay bar... Waters from cape mendocino to pt. Arena ca from 10 to 60 nm... Waters from pt. St. George to cape mendocino ca from 10 to 60 nm... Scattered Thunderstorms will continue to develop through 3 pm. The main storm hazards will be dangerous cloud to water lightnig...wind gusts to 40 knots or more...small hail...and waterspouts. 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.ground 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 4156 12410 4150 12398 4153 12407 4154 12408 4089 12413 4076 12423 4087 12414 4085 12409 4083 12408 4065 12431 4060 12416 4051 12413 4063 12432 4043 12441 4044 12581 4129 12555 4168 12568 4178 12579
PZZ400 823 Am Pdt Tue Apr 25 2017
Synopsis for northern california waters..Southerly winds today will turn northerly on Wednesday with a frontal passage tonight. Expect periods of gusty winds with northerlies increasing late this week. Otherwise a mid period westerly swell will persist through the middle of the week.

7 Day Forecast for Marine Location Near Ferndale, CA
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location: 40.43, -124.42     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 251122
afdeka
area forecast discussion
national weather service eureka ca
422 am pdt Tue apr 25 2017

Synopsis Moist onshore flow will maintain rain chances across
the region through mid week. The pattern will then change by late
week as a ridge builds off shore over the pacific, resulting in
warmer and drier conditions for northwest california.

Discussion A weak warm frontal boundary is spreading clouds
across NW ca this morning. This feature will promote another round
of light rainfall to areas mainly along the coast today... Although
not as much rain as yesterday. Rain intensity will increase
tonight when the trailing cold front moves through. Total rain
amounts will range from a 0.25 to 0.50 inches from today through
Wednesday... And again... Most will fall late tonight and Wednesday
morning along the north coast and coastal mountains. After
Wednesday, upper-level heights rise dramatically offshore over the
pacific. This will yield a large-scale subsidence regime favoring
dry and mild conditions Friday through the weekend. However,
warming midlevel temperatures signal the potential for a
strengthening boundary layer inversion, which could support marine
stratus development impacting coastal communities... Will continue
to evaluate. Otherwise... A tight surface pressure gradient is
forecast to develop in the vicinity of the coast as high pressure
strengthens west of the area. This surface pattern will support
northerly winds that could be gusty along the coast during late
week.

Aviation MainlyVFR conditions will prevail this morning as we
await the arrival of the next storm system. The exception at the
time being is kcec as ceilings have already started to lower. These
conditions will slowly spread southwards as the system passes over
the region. Heavier rain should hold off until late tonight or early
Wednesday morning which will likely drop conditions to ifr.

Marine Winds will turn to the south today and increase as the
next quick moving storm system passes over the region. These
conditions will continue through Wednesday morning with winds then
quickly turning to the west followed by the north. High pressure
will be taking control of the forecast during this time frame which
will tighten the pressure gradient offshore resulting in northerly
small craft winds and a fresh short period swell. Additionally, a
westerly swell in the 10 to 15 second range will persist through
much of the forecast period. /kar

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
46213 - Cape Mendocino, CA (094) 19 mi51 min 53°F9 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi53 min S 18 G 19 51°F 53°F7 ft1017.9 hPa (+0.0)48°F
HBYC1 - 9418767 - North Spit, CA 26 mi67 min SSE 7 G 8.9 50°F 55°F1019.3 hPa
46244 - Humboldt Bay, North Spit, CA 32 mi22 min 54°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, CA17 mi68 minSE 75.00 miOvercast50°F48°F94%1019 hPa

Wind History from FOT (wind in knots)
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Last 24hrW4NW6NW5W8NW14
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NW9NW6NW9NW6N3NW3W3CalmSE3SE3CalmCalmSE6SE5SE3SE6S3SE6SE12
1 day agoE4S3NW10NW9N10NW10
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NW10NW10NW7N7N3CalmCalmCalmCalmSE7SE7SE7E12E11SE13SE12E9SE4
2 days agoE6E4SW6NW4N7N11N15
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Tide / Current Tables for Cape Mendocino, California
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Cape Mendocino
Click for Map
Tue -- 05:18 AM PDT     -0.12 feet Low Tide
Tue -- 06:14 AM PDT     Moonrise
Tue -- 06:24 AM PDT     Sunrise
Tue -- 11:24 AM PDT     5.07 feet High Tide
Tue -- 05:19 PM PDT     0.78 feet Low Tide
Tue -- 07:24 PM PDT     Moonset
Tue -- 08:07 PM PDT     Sunset
Tue -- 11:19 PM PDT     6.04 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.34.22.81.40.4-0.10.10.923.34.4554.43.42.21.30.811.834.35.46

Tide / Current Tables for Punta Gorda, California Current
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Punta Gorda
Click for Map
Tue -- 02:17 AM PDT     -1.46 knots Max Ebb
Tue -- 05:55 AM PDT     0.00 knots Slack
Tue -- 06:14 AM PDT     Moonrise
Tue -- 06:24 AM PDT     Sunrise
Tue -- 08:51 AM PDT     1.26 knots Max Flood
Tue -- 12:02 PM PDT     -0.00 knots Slack
Tue -- 02:41 PM PDT     -1.23 knots Max Ebb
Tue -- 06:04 PM PDT     0.00 knots Slack
Tue -- 07:23 PM PDT     Moonset
Tue -- 08:07 PM PDT     Sunset
Tue -- 08:58 PM PDT     1.17 knots Max Flood
Tue -- 11:57 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-1.1-1.4-1.4-1-0.50.10.71.11.31.10.60-0.7-1.1-1.2-1-0.6-00.511.210.6

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.