Saturday, August17, 2019 L-36.com


Marine Weather and Tides
Westhaven-Moonstone, 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 6:26AMSunset 8:13PM Saturday August 17, 2019 5:45 AM PDT (12:45 UTC) Moonrise 8:41PMMoonset 7:22AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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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PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 256 Am Pdt Sat Aug 17 2019
.small craft advisory in effect through Sunday morning...
Today..N winds 15 to 25 kt. Waves N 10 ft at 9 seconds...and W 3 ft at 16 seconds.
Tonight..N winds 10 to 20 kt. Gusts up to 30 kt. Waves nw 10 ft at 9 seconds...and W 3 ft at 15 seconds.
Sun..N winds 5 to 15 kt. Waves nw 7 ft at 8 seconds...and W 3 ft at 15 seconds.
Sun night..N winds 5 to 10 kt. Waves N 5 ft at 6 seconds... And W 2 ft at 15 seconds.
Mon..N winds 5 to 10 kt. Waves N 5 ft at 7 seconds...and W 2 ft at 15 seconds.
Tue..NW winds 5 to 10 kt. Waves N 4 ft at 7 seconds...and W 2 ft at 14 seconds.
Wed..N winds 5 to 10 kt. Waves W 6 ft at 9 seconds.
PZZ400 256 Am Pdt Sat Aug 17 2019
Synopsis for northern california waters..Fresh to near gale northerlies and steep wind-driven seas will persist through Saturday. Winds and seas will begin to weaken on Sunday and become very subdued for much of next week.


7 Day Forecast for Marine Location Near Westhaven-Moonstone, CA
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location: 41.05, -124.1     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 171102
afdeka
area forecast discussion
national weather service eureka ca
402 am pdt Sat aug 17 2019

Synopsis Temperatures will gradually cool through the weekend,
followed by a warming trend during the second half of next week.

Otherwise, dry weather will prevail during the next seven days.

Discussion Northwest flow aloft is forecast to evolve into
troughing over the nern pac Sunday through early next week. That
evolution will aid in ushering in a cooler airmass across nwrn ca,
with high temperatures across the interior cooling around 10
degrees compared to values observed on Friday. Otherwise, model
guidance shows patchy stratus potentially becoming more widespread
Sunday-Tuesday. In addition, marine layer moisture may deepen
sufficiently for coastal drizzle Monday and Tuesday mornings.

Beyond Tuesday... Dry weather will continue through mid to late
next week. In addition, warming deep-layer temperature profiles
will aid in the redevelopment of hot temperatures across interior
valleys.

Aviation One more day of favorable flying weather along the
northcoast and mendocino coast as the marine clouds and fog are
not expected to hamper conditions again through the next taf
cycle. By Sunday however the marine influence should become more
evident with periods of MVFR or brief periods of ifr are likely at
both cec and acv. Interior sites should remain generallyVFR as
warm dry weather continues.

Marine A gale warning for the outer waters and a small craft
advisory for the inner waters continue. Northerlies are expected
to gradually diminish on Sunday. The northerlies will fall to 5-10
kts by Monday presenting a very tranquil wind field through the
remainder of the week. Short period seas around 12 to 14 ft will
persist across the outer waters through Sunday but will also
subside early in the week with a rather small wnw swell lingering
through next week.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until
noon pdt Sunday for pzz450.

Gale warning until midnight pdt tonight for pzz470-475.

Small craft advisory until 6 pm pdt Sunday for pzz455.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46244 - Humboldt Bay, North Spit, CA 17 mi45 min 55°F8 ft
HBYC1 - 9418767 - North Spit, CA 21 mi69 min 54°F1011.6 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 33 mi25 min N 19 G 23 54°F1012 hPa
CECC1 - 9419750 - Crescent City, CA 48 mi51 min NNE 1.9 G 1.9 51°F 53°F1012.1 hPa

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, CA4 mi52 minN 09.00 miFair49°F46°F93%1011.9 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrCalmE3CalmCalmW5W55NW11NW15
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NW15NW13--N7CalmS6S6SE5SE4SE5E3Calm
1 day agoNW3CalmNW6CalmCalmW5446NW13
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NW14NW12NW8S7E4SE4CalmE3SE4CalmCalmCalm
2 days agoNE3E4NE3CalmW5NW5NW7NW8NW10NW11NW8NW12
G20
NW14NW12NW8NW6S5S5S5S4S5CalmCalmCalm

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
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Sat -- 01:00 AM PDT     6.50 feet High Tide
Sat -- 06:28 AM PDT     Sunrise
Sat -- 07:42 AM PDT     0.07 feet Low Tide
Sat -- 08:22 AM PDT     Moonset
Sat -- 02:11 PM PDT     5.81 feet High Tide
Sat -- 07:47 PM PDT     2.25 feet Low Tide
Sat -- 08:12 PM PDT     Sunset
Sat -- 09:41 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.26.56.25.23.92.41.10.20.10.61.73.14.45.45.85.64.943.12.42.32.63.54.5

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
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Arcata Wharf
Click for Map
Sat -- 02:02 AM PDT     6.83 feet High Tide
Sat -- 06:28 AM PDT     Sunrise
Sat -- 08:22 AM PDT     Moonset
Sat -- 08:51 AM PDT     0.07 feet Low Tide
Sat -- 03:21 PM PDT     5.98 feet High Tide
Sat -- 08:12 PM PDT     Sunset
Sat -- 08:53 PM PDT     2.48 feet Low Tide
Sat -- 09:41 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.76.56.86.55.74.32.71.30.30.10.61.734.45.45.95.95.34.43.42.72.52.93.7

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Eureka, CA (8,2,3,4)
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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.