Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Bayview, CA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 7:01AMSunset 7:17PM Saturday September 21, 2019 2:41 PM PDT (21:41 UTC) Moonrise 10:56PMMoonset 1:17PM Illumination 47% Phase: Third Quarter Moon; Moon at 22 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 1119 Am Pdt Mon Sep 16 2019
.isolated strong Thunderstorms over the coastal waters... The areas affected include... Coastal waters from point saint george to cape mendocino ca out 60 nm... At 1114 am, doppler radar indicated a few strong Thunderstorms, capable of producing wind gusts to around 30 knots, from 5 nm northwest of orick to 45 nm west of patrick's point. These storms are moving southeast at 10 knots. 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 these storms passes. && lat...lon 4174 12416 4145 12406 4123 12411 4114 12416 4105 12415 4106 12414 4102 12411 4070 12426 4071 12426 4058 12435 4083 12572 4096 12565 4178 12460 4178 12426
PZZ400 212 Pm Pdt Sat Sep 21 2019
Synopsis for northern california waters.. Strong northerly breezes and steep waves will continue through this evening. Winds and seas will trend downward Saturday night and Sunday, especially north of cape mendocino, as a trough approaches from the nw. Conditions will start to deteriorate again Sunday night after this trough passes over the area. Strong northerlies will develop over the outer waters Monday through Wednesday.


7 Day Forecast for Marine Location Near Bayview, CA
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location: 40.78, -124.2     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 211118
afdeka
area forecast discussion
national weather service eureka ca
418 am pdt Sat sep 21 2019

Synopsis Another round of warm dry weather is expected today,
followed by cloudier conditions and a few light showers on Sunday.

Warm and dry conditions will redevelop during early to middle
portions of next week, with cool showery weather possible late
next week.

Discussion An upper ridge was positioned over the west coast
during Saturday morning. Large-scale subsidence occurring with
that feature will yield mainly clear skies through Saturday
afternoon resulting in warm dry conditions across the region. An
upper trough and associated surface frontal boundary will approach
from the northwest during Sunday. Modest ascent focused along the
front will support a chance of light showers mainly over humboldt
and del norte counties during Sunday afternoon. Model guidance
shows deep layer subsidence and drying occurring in the immediate
wake of the front leading to rapid shower dissipation across the
eka CWA during Sunday evening.

Upper ridging will dominate the large-scale weather regime during
early to middle portions of next week... While at the surface,
high pressure over the nern pac and low pressure across the
central valley will favor gusty north to occasionally northeast
winds along the coast and across exposed interior ridges.

Northeasterlies at 850 mb will also aid in establishing a warm
low-level airmass, with hot daytime highs probable across
interior valleys, and warm conditions occurring along the coast.

Hot conditions are forecast to come to an end Friday into the
weekend as an anomalously cold upper trough digs southward over
the western conus. Periods of showery weather are expected to
occur with the trough, which could include snow at elevations as
low as 5000-6000 feet.

Aviation Vfr conditions will generally prevail through the
next couple of days a ridge builds toward the west coast. Periods
of breezy gusty n-nw winds during the afternoon and evening hours
through Friday especially along the coast. Some patchy areas of
low clouds and fog will still be possible during the early morning
hours along the near coast and over the interior valleys.

Marine Northerlies winds will begin to ease up later today and
into Sunday morning, primarily north of CAPE mendocino, as a
trough approaches from the nw. This lull will be short-lived.

Guidance continues to indicate north winds ramping up again Sunday
night in the wake of this trough. How quickly winds increase is
still not certain. Right now, it appears to be a gradual increase
Sunday night. The potential for gale force conditions will
increase on Monday and then persist through mid next week. The
highest probability for gales appears to be in the outer waters,
based on the coarse resolution of the gfs, ECMWF and nbm. Gale
conditions will be possible inside 10nm as well, primarily around
pt st george and CAPE mendocino. The main threat for the inner
waters appears to be large steep seas generated from the strong
northerlies outside 10nm. Steep seas may hit 18 to 20 feet outside
10nm and 12 to 15 ft inside 10nm around mid next week if gales
last for 3 consecutive days. Have issued a gale watch for the
outer waters to reflect the strong northerly potential.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Gale watch from Monday
afternoon through late Tuesday night for pzz470.

Small craft advisory until 9 pm pdt this evening for pzz470.

Gale watch from late Sunday night through late Tuesday night for
pzz475.

Small craft advisory until 5 am pdt Monday 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 1 mi65 min 60°F1017.1 hPa
46244 - Humboldt Bay, North Spit, CA 12 mi41 min 61°F6 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 18 mi31 min N 12 G 14 57°F1017.4 hPa
46213 - Cape Mendocino, CA (094) 44 mi41 min 64°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, CA15 mi48 minWNW 710.00 miFair65°F55°F73%1016.6 hPa
Fortuna Rohnerville Airport, CA16 mi66 minW 14 G 2010.00 miA Few Clouds66°F55°F68%1016.6 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrN14N15N11N13NW64SE3SE3SE3CalmCalmE3CalmCalmCalmE3CalmCalmCalmCalmNW436NW7
1 day agoNW13N13
G19
N12N11N9
G15
N9CalmE3E3E3CalmE4E3E4E4E4CalmE5NW3NW3NW6NW12NW14
G20
N17
2 days agoS4SE6NE7E4S3S4NE5CalmCalmCalmCalmE3E3CalmE5CalmCalmCalmCalm--NW7NW4NW8NW14

Tide / Current Tables for Bucksport, Humboldt Bay, California
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Bucksport
Click for Map
Sat -- 06:19 AM PDT     4.72 feet High Tide
Sat -- 07:03 AM PDT     Sunrise
Sat -- 11:05 AM PDT     3.27 feet Low Tide
Sat -- 02:16 PM PDT     Moonset
Sat -- 05:16 PM PDT     6.47 feet High Tide
Sat -- 07:15 PM PDT     Sunset
Sat -- 07:43 PM PDT     Last Quarter
Sat -- 11:56 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.32.133.94.44.74.64.33.93.53.33.43.94.75.56.16.56.45.84.93.72.41.4

Tide / Current Tables for Mad River Slough, Arcata Bay, Humboldt Bay, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_P
GEOS 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 (17,4,5,8)
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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.