Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Caspar, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:18AMSunset 8:02PM Tuesday April 25, 2017 5:38 AM PDT (12:38 UTC) Moonrise 5:13AMMoonset 6:21PM Illumination 0% Phase: New Moon; Moon at 29 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- 356 Am Pdt Tue Apr 25 2017
Today..SW winds up to 5 kt. Waves W 8 ft at 10 seconds...and S 2 ft at 15 seconds. Chance of rain.
Tonight..SE winds 5 to 10 kt. Waves W 6 ft at 11 seconds. Chance of rain.
Wed..W winds 5 to 10 kt. Waves W 3 ft at 2 seconds...and W 7 ft at 13 seconds. Rain.
Wed night..N winds 10 to 15 kt. Waves nw 4 ft at 3 seconds... And W 7 ft at 12 seconds.
Thu..N winds 15 to 20 kt. Waves N 7 ft at 4 seconds...and W 7 ft at 12 seconds.
Fri..N winds 15 to 25 kt. Waves N 7 ft at 4 seconds...and nw 5 ft at 12 seconds.
Sat..N winds 10 to 20 kt. Waves N 6 ft at 5 seconds...and nw 3 ft at 11 seconds.
PZZ400 356 Am Pdt Tue Apr 25 2017
Synopsis for northern california waters..A series of storm systems will impact the area through Wednesday leading to brief periods of gusty winds. Otherwise...a mid period westerly swell will persist through the middle of the week...then stronger northerlies return late in the week for all waters.

7 Day Forecast for Marine Location Near Caspar, CA
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location: 39.35, -123.83     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 251122
afdeka
area forecast discussion
national weather service eureka ca
422 am pdt Tue apr 25 2017

Synopsis Moist onshore flow will maintain rain chances across
the region through mid week. The pattern will then change by late
week as a ridge builds off shore over the pacific, resulting in
warmer and drier conditions for northwest california.

Discussion A weak warm frontal boundary is spreading clouds
across NW ca this morning. This feature will promote another round
of light rainfall to areas mainly along the coast today... Although
not as much rain as yesterday. Rain intensity will increase
tonight when the trailing cold front moves through. Total rain
amounts will range from a 0.25 to 0.50 inches from today through
Wednesday... And again... Most will fall late tonight and Wednesday
morning along the north coast and coastal mountains. After
Wednesday, upper-level heights rise dramatically offshore over the
pacific. This will yield a large-scale subsidence regime favoring
dry and mild conditions Friday through the weekend. However,
warming midlevel temperatures signal the potential for a
strengthening boundary layer inversion, which could support marine
stratus development impacting coastal communities... Will continue
to evaluate. Otherwise... A tight surface pressure gradient is
forecast to develop in the vicinity of the coast as high pressure
strengthens west of the area. This surface pattern will support
northerly winds that could be gusty along the coast during late
week.

Aviation MainlyVFR conditions will prevail this morning as we
await the arrival of the next storm system. The exception at the
time being is kcec as ceilings have already started to lower. These
conditions will slowly spread southwards as the system passes over
the region. Heavier rain should hold off until late tonight or early
Wednesday morning which will likely drop conditions to ifr.

Marine Winds will turn to the south today and increase as the
next quick moving storm system passes over the region. These
conditions will continue through Wednesday morning with winds then
quickly turning to the west followed by the north. High pressure
will be taking control of the forecast during this time frame which
will tighten the pressure gradient offshore resulting in northerly
small craft winds and a fresh short period swell. Additionally, a
westerly swell in the 10 to 15 second range will persist through
much of the forecast period. /kar

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
46014 - PT ARENA - 19NM North of Point Arena, CA 11 mi68 min NE 3.9 G 5.8 53°F 1018.9 hPa49°F
ANVC1 - 9416841 - Arena Cove, CA 31 mi86 min Calm G 1 51°F 51°F1019.5 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA36 mi1.7 hrsN 010.00 miOvercast48°F44°F86%1018.2 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmSW4CalmSE5SE6SE73NW7NW8W12
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1 day agoCalmCalmCalmCalm3NW10
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2 days agoCalmNW6W4CalmCalm4NE3N8N10N6N9W6W8NW5N7N3NW8N5NW5CalmSW3CalmN4N3

Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Tue -- 04:59 AM PDT     -0.14 feet Low Tide
Tue -- 06:12 AM PDT     Moonrise
Tue -- 06:23 AM PDT     Sunrise
Tue -- 11:15 AM PDT     4.91 feet High Tide
Tue -- 04:56 PM PDT     0.63 feet Low Tide
Tue -- 07:20 PM PDT     Moonset
Tue -- 08:03 PM PDT     Sunset
Tue -- 11:14 PM PDT     6.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
53.92.51.10.2-0.10.21.12.33.54.44.94.742.91.80.90.611.93.14.45.56

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Tue -- 02:15 AM PDT     -1.46 knots Max Ebb
Tue -- 05:53 AM PDT     0.00 knots Slack
Tue -- 06:12 AM PDT     Moonrise
Tue -- 06:23 AM PDT     Sunrise
Tue -- 08:49 AM PDT     1.26 knots Max Flood
Tue -- 12:00 PM PDT     -0.00 knots Slack
Tue -- 02:39 PM PDT     -1.23 knots Max Ebb
Tue -- 06:02 PM PDT     0.00 knots Slack
Tue -- 07:20 PM PDT     Moonset
Tue -- 08:03 PM PDT     Sunset
Tue -- 08:56 PM PDT     1.17 knots Max Flood
Tue -- 11:55 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-1.1-1.4-1.4-1-0.50.10.71.11.31.10.60-0.7-1.1-1.2-1-0.5-00.511.210.6

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 (8,2,3,4)
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Ground Weather Radar Station Eureka, 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.