Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
Ferndale, 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 8:50 PM PDT (03:50 UTC) Moonrise 9:59PMMoonset 10:18AM Illumination 70% 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 245 Pm Pdt Tue Aug 20 2019
Synopsis for northern california waters..Relatively light winds and seas will persist through Wednesday night. Northerlies will develop on Thursday and increase through late week as short period seas build in response.


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 202148
afdeka
area forecast discussion
national weather service eureka ca
248 pm pdt Tue aug 20 2019

Synopsis Seasonable temperatures will persist through Wednesday.

In addition, there is a chance for light rain Wednesday afternoon
and evening over del norte county. Warmer temperatures are
expected across the interior for the end of the week.

Discussion Coastal stratus has mostly dissipated as of early
this afternoon, revealing mostly sunny skies across NW california.

A few mid high level clouds are beginning to spread into the
region ahead of an upper trough which is poised to move inland
over the pacific northwest on Wednesday. Forecast thinking
regarding this feature is largely unchanged from the past few
days as a weak front approaches the far northern portion of the
area and brings a chance for light rain to del norte and possibly
northern humboldt county. This will be supported by impressive
mid august precipitable water values around 1.75 inches, which
combined with the synoptic forcing could be enough to generate a
few hundredths of an inch of precipitation near the oregon border
and perhaps a few sprinkles as far south as the humboldt bay
region.

The trough will quickly depart Wednesday night, leaving the area
beneath quasi-zonal flow on the northern periphery of a
subtropical pacific ridge 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

Aviation The near complete erosion of coastal stratus has
allowedVFR conditions to prevail across the area this afternoon,
with this trend expected to continue well into the evening. The
primary forecast challenge will be timing the return of the
stratus to coastal terminals tonight. Thinking this could be
delayed a bit longer than in recent days given the extent to which
low clouds have cleared over the coastal waters today, but the
marine layer is still sufficiently deep that stratus should reform
at some point, possibly after 06z. Low clouds and patchy fog are
then expected to bring ifr lifr conditions to acv and cec through
Wednesday morning, with some improvement expected around 15z. Uki
and other inland airfields should remainVFR for the duration of
the TAF period. Cb

Marine Relatively tranquil marine conditions will persist for
the next 24 hrs or so as a relaxed pressure gradient supports
mainly light winds and low seas across the coastal waters.

Developing moderate to fresh southerly breezes may clip the far
northern outer waters later tonight ahead of the system moving
through on Wednesday, but these conditions are mostly expected to
remain north of the area. A mid period swell around 7 feet at 12
seconds will enter the waters later on Wednesday, resulting in a
more elevated sea state than has been observed in recent days.

Strong northerlies will then quickly return Wednesday night behind
the departing system, with short period seas rapidly building in
response through Thursday. This will likely necessitate the next
round of headlines by Thursday morning. The northerly wind regime
then looks to persist into at least the early part of next week.

Cb

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 57°F4 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 20 mi41 min ENE 3.9 G 3.9 59°F1018.5 hPa
HBYC1 - 9418767 - North Spit, CA 26 mi75 min 54°F1018.5 hPa
46244 - Humboldt Bay, North Spit, CA 32 mi51 min 56°F3 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 mi76 minWNW 710.00 miFair64°F53°F68%1018.3 hPa

Link to 5 minute data for KFOT

Wind History from FOT (wind in knots)
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Last 24hr------E3E3E3--CalmW4CalmCalmCalmCalmSW4W5W5W4W7NW12NW12
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NW12NW6W7
1 day ago------CalmCalmSE5SE4SE4SE3S3SE3CalmCalmNW7W7NW7W8W9NW12W13W13W11W9W6
2 days agoW5W5W5NW6W5W3CalmCalmSE3SE7E4CalmNW4CalmCalmNW8N12NW10W9W13W10W12
G17
W11W7

Tide / Current Tables for Cape Mendocino, California
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Cape Mendocino
Click for Map
Tue -- 02:26 AM PDT     4.68 feet High Tide
Tue -- 06:33 AM PDT     Sunrise
Tue -- 08:58 AM PDT     1.26 feet Low Tide
Tue -- 11:18 AM PDT     Moonset
Tue -- 03:16 PM PDT     5.17 feet High Tide
Tue -- 08:08 PM PDT     Sunset
Tue -- 09:42 PM PDT     1.95 feet Low Tide
Tue -- 10:58 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.64.34.64.64.33.62.821.41.31.52.23.144.85.15.14.63.93.12.4222.3

Tide / Current Tables for Punta Gorda, California Current
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Punta Gorda
Click for Map
Tue -- 12:22 AM PDT     0.73 knots Max Flood
Tue -- 03:19 AM PDT     -0.00 knots Slack
Tue -- 06:18 AM PDT     -0.98 knots Max Ebb
Tue -- 06:33 AM PDT     Sunrise
Tue -- 09:40 AM PDT     0.00 knots Slack
Tue -- 11:17 AM PDT     Moonset
Tue -- 12:44 PM PDT     0.81 knots Max Flood
Tue -- 03:52 PM PDT     -0.00 knots Slack
Tue -- 06:46 PM PDT     -0.96 knots Max Ebb
Tue -- 08:07 PM PDT     Sunset
Tue -- 10:20 PM PDT     0.00 knots Slack
Tue -- 10:58 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.50.1-0.3-0.7-1-0.9-0.6-0.20.10.50.70.80.60.3-0.1-0.5-0.9-1-0.8-0.4-0.10.2

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 (23,6,7,8)
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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.