Sunday, March26, 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 7:06AMSunset 7:37PM Sunday March 26, 2017 11:48 AM PDT (18:48 UTC) Moonrise 5:34AMMoonset 5:18PM Illumination 1% Phase: Waning Crescent; 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 /o.can.keka.ma.w.0062.000000t0000z-161123t1115z/ 301 Am Pst Wed Nov 23 2016
.the special marine warning is cancelled... The affected areas were... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay bar... The Thunderstorms have moved out of the area and no longer pose a significant threat to boaters. Lat...lon 4083 12412 4082 12417 4085 12417 4076 12423 4081 12418 4082 12413 4080 12418 4077 12420 4075 12419 4075 12422 4070 12426 4071 12427 4044 12442 4044 12443 4050 12450 4087 12429 4087 12416 4086 12417 4085 12409 time...mot...loc 1058z 282deg 14kt 4078 12425 4051 12443 4020 12433
PZZ400 823 Am Pdt Sun Mar 26 2017
Synopsis for northern california waters..Gusty winds through this afternoon as a weak cold front moves across the waters. Winds will diminish tonight as a high pressure ridge builds across the region. An elevated westerly swell will propagate across the waters Monday through Wednesday.

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 261236
afdeka
area forecast discussion
national weather service eureka ca
431 am pdt Sun mar 26 2017

Synopsis A front will move across northwest california today
producing light to moderate rain by afternoon. A trough in the
cooler air will generate additional showers tonight through Monday
morning. High pressure will build Monday afternoon and maintain
dry weather through Tuesday.

Discussion Dry conditions have been holding through the night.

Radar has been detecting a broad area of 20 to 30 dbz's offshore
associated with a weak warm front offshore. We will probably
receive light rain around daybreak or shortly thereafter as the
warm front slowly progresses eastward toward the north coast.

The surface cold front will probably take til mid afternoon to
early evening to move across the forecast area. That is when steady
rain is expected. Winds with the incoming front do not look
exceptionally strong. The front will most likely occlude later today
and winds will pick up and become gusty. The arw as well as the
coarser models indicate the potential for gusts around 40-50mph
primarily over the exposed higher terrain and coastal headlands by
early afternoon. Winds will be borderline for an advisory. As of
4am, winds were fairly light, with gusts around 20-25mph. It is
interesting to note that the nam12 and other high resolution models
indicate a rain hole or dry slot developing over the greater eureka
area later this morning as winds aloft increase. This will need to
be watched for the possibility of strong southeasterly downsloping
wind gusts which will eat away at the rain. For now we added gusts
to around 40 mph which is just under an advisory for wind.

Overall the rain with the incoming front is not looking all that
spectacular. Hydrological concerns are very minimal or non-existent.

After frontal passage by mid evening, a post frontal ridge will
build and provide a break in the showers. The air column will
start to cool down significantly behind the front and dry out too.

A secondary trough line and mid level vort MAX will follow later
tonight into Monday morning and spark up additional shower
activity. Mid level lapse rates will steepen in response to strong
500mb cooling, however temperatures through the entire column
will cool as well and snow levels are expected to fall to around
3kft by daybreak Monday. Freezing levels will be low enough to
consider small hail. Instability parameters (lifted indices and
cape) as well as mid level lapse rates are very unfavorable for
hail production. Shallow convection may still generate a mix of
rain and hail as a mid level trough line swings across the area
early Monday morning. The best location looks to be across del
norte and far northern humboldt counties. Confidence is by no
means high due to the lack of instability and available buoyant
energy to sustain updrafts.

After this short-wave impulse moves across the area Monday
morning, upper level ridging will build over the area and squash
any showers that try to sprout up with daytime heating.

An offshore wind flow pattern will develop Monday night resulting
in dry and stable weather conditions through tue. The latest gfs
and ECMWF remain consistent with bringing another front toward the
coast Tue night. There were still some variations between the two
models on how fast the rain will arrive and how long it will
last. The models differed also on the southern extent of the rain.

It is not going to be a major dumping, however, del norte and
humboldt counties will probably receive some light rain. Upper level
ridging will return by Fri and provide for another day or so of dry
weather. The ECMWF and GFS hint at a weak front riding over the
ridge toward the latter portion of next weekend that may generate
some light rain, primarily along the coast and over del norte
county. A spring like weather pattern is starting to take shape with
surface northerlies dominating offshore.

Aviation Vfr conditions and light winds to calm conditions will
continue at kcec, kacv and kuki through the early morning. Ceilings
and/or visibilities will decrease today as a weak cold front moves
through the region. Showers will move across the region at times
today associated with the weak cold front.VFR to MVFR conditions
will prevail at kcec, kacv and kuki later this morning and this
afternoon as the front and showers move across the region. A high
pressure ridge will build across the region in the wake of the
weak cold front on Monday.

Marine Winds will increase today as a weak cold front approaches
and moves across the waters. The front will move across the waters
this afternoon. Showers will move across the waters at times
today associated with the cold front. The winds will increase
along the cold front. The winds and seas will be higher across the
outer waters and in or near any showers. The winds will diminish
tonight. Seas will increase Monday and remain elevated through
Wednesday as a westerly swell propagates across the waters. Small
craft advisories are in effect across the near shore waters and
southern outer waters through this afternoon due to increasing
winds as the cold front moves across the waters. A gale warning is
in effect across the northern outer waters through this afternoon
primarily due to wind gusts as the front passes across the
waters. Small craft advisories are likely across all the waters
Monday through Wednesday due to elevated seas associated with the
westerly swell.

Eka watches/warnings/advisories
Ca... None.

Northwest california coastal waters...

small craft advisory until 3 pm pdt this afternoon for pzz450-
455-475. Small craft advisory until 9 am pdt this morning for
pzz470. Gale warning from 9 am this morning to 3 pm pdt this
afternoon for pzz470.

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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 mi56 min 54°F9 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi58 min S 23 G 29 53°F 52°F7 ft1012.6 hPa (-0.9)46°F
HBYC1 - 9418767 - North Spit, CA 26 mi72 min SSE 25 G 32 53°F 53°F1014 hPa
46244 - Humboldt Bay, North Spit, CA 32 mi57 min 53°F8 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 mi53 minSE 19 G 2510.00 miMostly Cloudy and Breezy50°F42°F76%1015.2 hPa

Wind History from FOT (wind in knots)
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Last 24hrNW6NW8N11N9NW10
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1 day agoSE7S4S10S7SW8SW7SW8SW5CalmCalmSE5SE4SE4SE7SE5SE4SE3SE3SE5SE3SE4CalmS4Calm
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SE14NW5NW5CalmSE5

Tide / Current Tables for Cape Mendocino, California
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Cape Mendocino
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Sun -- 04:57 AM PDT     1.38 feet Low Tide
Sun -- 06:33 AM PDT     Moonrise
Sun -- 07:10 AM PDT     Sunrise
Sun -- 10:42 AM PDT     5.57 feet High Tide
Sun -- 05:15 PM PDT     0.04 feet Low Tide
Sun -- 06:17 PM PDT     Moonset
Sun -- 07:36 PM PDT     Sunset
Sun -- 11:29 PM PDT     5.39 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.94.13.22.21.61.41.72.53.64.75.45.55.14.12.81.50.50.10.212.23.54.65.3

Tide / Current Tables for Punta Gorda, California Current
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Punta Gorda
Click for Map
Sun -- 02:04 AM PDT     -1.08 knots Max Ebb
Sun -- 05:32 AM PDT     0.00 knots Slack
Sun -- 06:33 AM PDT     Moonrise
Sun -- 07:10 AM PDT     Sunrise
Sun -- 08:24 AM PDT     1.05 knots Max Flood
Sun -- 11:24 AM PDT     -0.00 knots Slack
Sun -- 02:20 PM PDT     -1.38 knots Max Ebb
Sun -- 05:59 PM PDT     0.00 knots Slack
Sun -- 06:17 PM PDT     Moonset
Sun -- 07:36 PM PDT     Sunset
Sun -- 08:54 PM PDT     1.18 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.9-1.1-1-0.7-0.30.20.7110.70.2-0.4-1-1.4-1.3-1-0.500.61.11.210.6

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 (14,3,4,5)
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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.