Saturday, February24, 2018 L-36.com


Marine Weather and Tides
Manchester, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:49AMSunset 6:02PM Saturday February 24, 2018 7:50 AM PST (15:50 UTC) Moonrise 12:34PMMoonset 2:18AM Illumination 69% 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 232 Am Pst Sat Feb 24 2018
.small craft advisory in effect through this evening...
Today..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 4 to 5 ft at 15 seconds.
Tonight..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 4 to 5 ft at 15 seconds.
Sun..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 4 to 6 ft at 15 seconds and S 3 ft at 15 seconds.
Sun night..W winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 5 to 7 ft at 14 seconds. Slight chance of showers in the evening, then chance of showers after midnight.
Mon..NW winds 20 to 30 kt. Wind waves 5 to 7 ft. NW swell 9 to 12 ft at 14 seconds. Chance of showers.
Tue..NW winds 20 to 30 kt. Wind waves 5 to 7 ft. NW swell 7 to 9 ft.
Wed..W winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 5 to 7 ft. Chance of showers.
PZZ500 232 Am Pst Sat Feb 24 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific will allow for continued breezy conditions over the coastal waters on Saturday. Early next week, and approaching system will bring a renewed chance of strong winds, fresh swell, and showers.

7 Day Forecast for Marine Location Near Manchester, CA
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location: 38.95, -123.73     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 241139
afdeka
area forecast discussion
national weather service eureka ca
339 am pst Sat feb 24 2018

Synopsis Light precipitation will spread south across the
region during Saturday. Heavier showers are forecast to occur
Sunday night into Monday, with several inches of snow possible for
elevations above 2000 feet. Additional showers and mountain snow
are expected Wednesday through Friday.

Discussion Regional radar imagery showed light precipitation
spreading inland across humboldt and del norte counties at 11z.

This activity will continue to progress south and east into
portions of trinity and mendocino counties during the
morning... But, precip totals will become progressively light by
midday as forcing aloft exits east. By tonight, skies are forecast
to clear across much of the interior, which will favor subfreezing
temperatures and patchy freezing fog and or frost.

Clouds will spread south once again during Sunday ahead of an
upper wave digging over the nern pac. This wave will enter nwrn ca
late Sunday night into Monday morning. Model guidance continues to
show very cold midlevel temperatures occurring within the core of
the upper trough. However, the heaviest precipitation is forecast
to occur ahead of the cold midlevel airmass. Thus, significant
snowfall occurring across mountain highway corridors appears to
be less probable at this time. In addition, the potential for
widespread coastal hail showers is more marginal based on current
model trends.

A stronger upper-level storm system is forecast to materialize
during the Wednesday through Friday time frame. Model output
indicates this system will impact the region in two phases. The
frontal phase will occur late Wednesday afternoon into the
evening, with strong southerly winds veering to westerly with the
frontal passage, potentially yielding strong gusts for exposed
coastal and ridgetop locations. In addition, heavy precipitation
appears probable along ahead of the front. The second phase will
occur Thursday afternoon into Friday as very cold temperatures
aloft spread across the region with an occluded upper low. This
environment will result in a steep lapse rate convective regime
accompanied by low freezing levels. Heavy mountain snow and
coastal hail will be possible as a result.

Aviation MVFR conditions and periodic light rain will persist
at north coast air terminals through the morning hours as a weak
trough passes across the pac nw. Conditions should improve for the
afternoon and evening hours as high pressure rebuilds behind the
trough. Conditions may start to deteriorate again as early as late
tonight as a new front moves toward the oregon coast.VFR
conditions will likely prevail at kuki through the period, however
brief MVFR CIGS will be possible through the morning hours.

Marine For the most part winds will remain sub-advisory today
through sun. North winds are forecast to increase again on mon
with gales possible over the southern waters by Mon night.

A short period NW swell will build to around 10 ft tonight and
fluctuate from 8 to 10 ft through sun. A more substantial short
period NW swell should build Sun night into mon. This swell will
combine forces with shorter period wind waves to produce seas
around 17 feet south of the CAPE by Mon night.

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
ANVC1 - 9416841 - Arena Cove, CA 3 mi51 min E 1.9 G 4.1 42°F 47°F1030.6 hPa (-0.3)
46014 - PT ARENA - 19NM North of Point Arena, CA 24 mi41 min ENE 3.9 G 5.8 1030.5 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA31 mi55 minN 010.00 miFair28°F23°F81%1030.2 hPa

Wind History from UKI (wind in knots)
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Last 24hrNW3CalmCalmN6NE63--N6W10NW6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalm
1 day agoCalmNE5N6NW11
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2 days agoE3N3CalmSE33CalmW6NW6W7W6CalmN8
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N7CalmCalmCalmCalmNW3CalmNW4N5NW11N6NE3

Tide / Current Tables for Point Arena, California
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Point Arena
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Sat -- 02:18 AM PST     Moonset
Sat -- 05:09 AM PST     6.05 feet High Tide
Sat -- 06:54 AM PST     Sunrise
Sat -- 12:34 PM PST     Moonrise
Sat -- 12:38 PM PST     0.29 feet Low Tide
Sat -- 06:02 PM PST     Sunset
Sat -- 07:24 PM PST     4.12 feet High Tide
Sat -- 11:52 PM PST     2.82 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
33.64.35.15.865.95.34.33.11.90.90.40.30.71.42.33.13.84.14.13.73.32.9

Tide / Current Tables for Point Arena, California Current
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Point Arena
Click for Map
Sat -- 12:21 AM PST     0.00 knots Slack
Sat -- 02:18 AM PST     Moonset
Sat -- 03:19 AM PST     0.68 knots Max Flood
Sat -- 06:12 AM PST     -0.00 knots Slack
Sat -- 06:54 AM PST     Sunrise
Sat -- 09:31 AM PST     -1.26 knots Max Ebb
Sat -- 12:34 PM PST     Moonrise
Sat -- 01:40 PM PST     0.00 knots Slack
Sat -- 04:43 PM PST     0.94 knots Max Flood
Sat -- 06:02 PM PST     Sunset
Sat -- 08:03 PM PST     -0.00 knots Slack
Sat -- 10:12 PM PST     -0.61 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.20.50.70.60.40.1-0.4-0.9-1.2-1.2-1-0.7-0.30.20.60.90.90.80.50-0.4-0.6-0.6

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 (10,2,3,4)
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Ground Weather Radar Station Sacramento, 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.