Thursday, October18, 2018 L-36.com


Marine Weather and Tides
Fort Bragg, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:25AMSunset 6:30PM Thursday October 18, 2018 11:40 AM PDT (18:40 UTC) Moonrise 2:51PMMoonset 12:25AM Illumination 68% Phase: Waxing Gibbous; Moon at 9 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 832 Am Pdt Thu Oct 18 2018
Today..NW winds 5 to 10 kt. Waves N 3 ft at 5 seconds...and W 7 ft at 15 seconds. Patchy fog.
Tonight..N winds 5 to 15 kt. Waves N 3 ft at 6 seconds...and W 6 ft at 14 seconds. Patchy fog.
Fri..N winds 5 to 10 kt. Waves N 3 ft at 6 seconds...and W 6 ft at 13 seconds. Patchy fog.
Fri night..N winds 5 to 15 kt. Waves N 3 ft at 6 seconds... And nw 5 ft at 12 seconds.
Sat..NW winds 5 kt. Waves N 2 ft at 5 seconds...and nw 3 ft at 13 seconds.
Sun..W winds 5 kt. Waves N 2 ft at 6 seconds...and nw 5 ft at 13 seconds.
Mon..NW winds 5 kt. Waves nw 5 ft at 13 seconds.
PZZ400 832 Am Pdt Thu Oct 18 2018
Synopsis for northern california waters..Light northerly winds will continue through the weekend. Otherwise, a long period west-northwesterly swell will persist into Friday, while a south-southwesterly swell continues through the weekend. In the extended range, a weak cold front is forecast to move across the region next Tuesday and Wednesday. This feature may yield a period of rain and gusty south winds.


7 Day Forecast for Marine Location Near Fort Bragg, CA
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location: 39.42, -123.8     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 181054
afdeka
area forecast discussion
national weather service eureka ca
354 am pdt Thu oct 18 2018

Synopsis Dry and mild afternoons accompanied by chilly nights
will persist through the week across interior northwest
california. Meanwhile, periods of low clouds and cooler afternoon
temperatures are expected along the coast. Otherwise, rain chances
are forecast to increase next week.

Discussion A blocked upper-air pattern will persist over the
west coast through the week. Above normal daytime highs are
generally expected for interior NW california due to the warming
associated with large scale subsidence. The dry air and clear
skies will also result in cool mornings for the interior valleys.

Frost is expected for some valley sites as the mercury dips into
the mid 30's during the early morning hours.

Widespread stratus offshore will keep coastal areas cool and
cloudy for the next day or so. The layer appeared to be shallow
early this morning, around 1000 to 1500 ft deep. Clearing to the
coastline is expected by late morning today. The clearing and
sunshine probably will not last long. Persistent northerlies
offshore along with a strong and low marine inversion will likely
result in more coastal stratus and fog this afternoon and
evening. Confidence that offshore flow will completely eradicate
the stratus on Friday is low.

Model guidance shows a pattern change taking place late this
weekend into early next week. A cold upper trough is forecast to
deepen over the gulf of alaska, which will aid in breaking down
the upper ridge and kicking out a cut-off low to our south. A
shortwave trough and associated surface frontal wave are then
forecast to move east across the pac NW during Tuesday. This wave
appears to weaken considerably, though may yield some light
rain for mainly del norte and northern humboldt counties. Moist
westerly flow and associated frontal wave may result in another
bout of rain for Wednesday.

Aviation Lifr ceilings and visibilities are being reported at
coastal terminals yet again this morning due to marine stratus.

Stratus is much more prevalent across the coastal waters this
morning and penetrating further inland than yesterday. Since hardly
no clearing was observed yesterday odds are that coastal sites will
remain locked in stratus through the day again today. This will mean
that ifr lifr ceilings should remain at cec and acv through the day
today. Visibilities should increase late this morning into the
early afternoon before dropping back down to lifr ifr conditions
this evening. Across the interior yet another day ofVFR
conditions and mostly clear skies except for patchy areas of smoke
from local prescribed burns and wildfires. Wci

Marine Light northerly winds will continue through the end of
the weekend as weak high pressure remains over the eastern pacific.

A long period northwesterly swell, long period southerly swell, and
northerly wind chop will create the total sea state through the end
of the weekend. The dominant wave group will be the westerly swell
which will peak at 7 feet at around 15 seconds this morning and then
gradually subside through the weekend. Next week as a system
approaches the coast, southerly winds will develop and another
northwesterly swell will begin to impact the waters. Wci

Fire weather Issued 220 pm pdt Wed oct 17 2018 . Warm
temperatures and low humidity values will persist across the
interior through the weekend. In addition, winds will occasionally
become gusty out of the east across exposed ridges, especially
from Thursday night through Saturday afternoon. Otherwise, winds
will be light and terrain driven over the valleys. In the extended
range, rain chances will increase next Tuesday and Wednesday.

Eka watches warnings advisories
Ca... Frost advisory until 9 am pdt this morning for caz102-104-106-
110-111.

Northwest california coastal waters... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 16 mi30 min WNW 3.9 G 7.8 54°F 59°F1021.1 hPa53°F
ANVC1 - 9416841 - Arena Cove, CA 35 mi40 min N 4.1 G 7 54°F 55°F1022.4 hPa (+0.9)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA37 mi44 minN 010.00 miFair63°F36°F37%1020.5 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalmNW8NW4N7CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day ago3CalmSE3CalmS3NW8NE3W4CalmCalm--CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalm4CalmCalmW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4CalmCalmCalm

Tide / Current Tables for Noyo River, California
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Noyo River
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Thu -- 01:22 AM PDT     0.84 feet Low Tide
Thu -- 01:25 AM PDT     Moonset
Thu -- 07:28 AM PDT     Sunrise
Thu -- 08:31 AM PDT     4.90 feet High Tide
Thu -- 02:12 PM PDT     2.75 feet Low Tide
Thu -- 03:51 PM PDT     Moonrise
Thu -- 06:31 PM PDT     Sunset
Thu -- 07:19 PM PDT     4.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.20.90.91.42.12.93.84.44.84.94.643.432.82.93.33.94.54.84.74.33.62.7

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Thu -- 01:25 AM PDT     Moonset
Thu -- 02:16 AM PDT     0.00 knots Slack
Thu -- 05:33 AM PDT     0.80 knots Max Flood
Thu -- 07:28 AM PDT     Sunrise
Thu -- 08:35 AM PDT     -0.00 knots Slack
Thu -- 11:04 AM PDT     -0.53 knots Max Ebb
Thu -- 02:46 PM PDT     0.00 knots Slack
Thu -- 03:51 PM PDT     Moonrise
Thu -- 05:25 PM PDT     0.51 knots Max Flood
Thu -- 06:31 PM PDT     Sunset
Thu -- 08:02 PM PDT     -0.00 knots Slack
Thu -- 11:02 PM PDT     -0.92 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.5-0.10.30.60.80.80.60.3-0.2-0.5-0.5-0.5-0.4-0.20.10.40.50.50.30-0.4-0.8-0.9

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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Wind Forecast for Eureka, CA (14,3,4,5)
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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.