Sunday, September23, 2018 L-36.com


Marine Weather and Tides
Calpella, CA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:01AMSunset 7:08PM Sunday September 23, 2018 7:19 PM PDT (02:19 UTC) Moonrise 5:53PMMoonset 4:29AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 146 Pm Pdt Sun Sep 23 2018
.small craft advisory in effect through late tonight...
Rest of today..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 5 ft. NW swell 3 to 5 ft at 9 seconds.
Tonight..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 8 ft at 9 seconds.
Mon..NW winds up to 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 9 seconds.
Mon night..W winds up to 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 9 seconds.
Tue..S winds around 5 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds.
Tue night..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds.
Wed..NW winds 5 to 15 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft.
Thu..NW winds 5 to 15 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft.
PZZ500 146 Pm Pdt Sun Sep 23 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate, locally gusty northwest winds across the coastal waters through the remainder of the day, especially north of point reyes and south of point sur as wellas in the outer waters. Locally steep fresh swell will be generated by these gusty winds. Winds subside by tomorrow morning through the coming days.


7 Day Forecast for Marine Location Near Calpella, CA
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location: 39.21, -123.35     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 232139
afdeka
area forecast discussion
national weather service eureka ca
239 pm pdt Sun sep 23 2018

Synopsis High pressure building into the area will bring
clearing skies and dry conditions through the week. Temperatures
will warm well above seasonal normals by Tuesday and continue
through much of the work week.

Discussion High pressure continues to build into the area this
afternoon. North to northeast offshore flow helped to clear skies
this morning. Breezy northwest winds continue this afternoon,
especially along the coast. These will diminish slightly tonight
and will become northeast again overnight keeping skies mostly
clear. Some patchy fog is possible around humboldt bay, but
coverage should be limited and any that does form should quickly
dissipate in the morning. The coldest inland areas of trinity
county could see some frost, but currently am not confident in it,
so have have the forecast at 37 degrees for hayfork. This will
need to be watched tonight.

Inland temperatures are expected to warm back into the 90s on
Monday. At the coast clear skies and breezy conditions are
expected once again Monday afternoon. Temperatures will warm into
the middle to upper 60s along the coast.

Tuesday and Wednesday high pressure moves overhead. Inland
temperatures will be in the mid to upper 90s. The light offshore
flow is expected to continue to on Tuesday and Wednesday. This
will likely allow the coast to warm up. High temperatures in the
70s are likely along the coast with warmer temperatures a few
miles inland. Winds will diminish along the coast and only be
around 5 to 10 mph each afternoon.

The models are continue to bring an upper level low towards the
coast late in the week and into the weekend. This brings the
potential for stratus and possible some mid level clouds on
Friday or possibly as early as Thursday. Current models continue
to show some light rain on Saturday, so have introduced a slight
chance for rain into the forecast. Confidence remains low on this,
especially the timing of the potential precip. Amounts look
fairly light at this point. Mkk

Aviation Clear skies and breezy conditions will continue
through the evening. Gusts of 25 to 30kt are possible along the
coast this afternoon. Tonight offshore flow is expected to keep
most areas clear, but there could be some patchy ground fog in the
near coastal valleys. This should clear up quickly for Monday and
winds are expected to be somewhat lighter on Monday although gusts
to 20 kt are possible along the coast in the afternoon. Mkk

Marine Northerlies will continue to increase through this
evening, with gale force gusts over the outer waters and occasional
gale force gusts downwind from prominent capes and points. Adjusted
the gale warning for the S outer waters (zone pzz475) to end Monday
afternoon (a bit earlier than the previous forecast). Otherwise,
headlines and the overall forecast remain generally unchanged. The
strong northerlies decrease by Tuesday as the tight gradient shifts
nw. Winds will remain fairly light through the remainder of the
forecast period with the direction backing to SW by Friday
afternoon.

N short period wind waves will persist mid to late in the coming
week with heights gradually decreasing after Monday night. In
addition, a NW swell currently at a period of around 8 seconds will
continue through this evening. A very small, periodic SW swell at
around 16 seconds will continue through the period. Sec

Fire weather A warming and drying trend will commence tonight
and Monday as offshore flow increases. Gusty northeast and east
winds with low rh's are expected tonight over the exposed ridges
of zones 203 and 204. Have issued a red flag warning to further
highlight the potential significant offshore winds and low rh. The
worst conditions are expected to be tonight above 1,500 feet. The
nam shows a fairly big area of 20 to 25 kt winds at 850 mb in
eastern del norte county and western siskiyou county. Breezy
winds will continue through Monday with low rh. Monday night into
early Tuesday winds will start to diminish, but rh recoveries will
be lower than on Monday morning. Local areas of increased gusty
winds and low rh are expected on Monday and Monday night across
humboldt and trinity counties.

Above normal temperatures and low rh's are expected each day
through much of the week before a cooling trend arrives toward
the end of the week into next weekend.

Eka watches warnings advisories
Ca... Red flag warning from 11 pm this evening to 6 am pdt Tuesday for
caz203-204.

Northwest california coastal waters... Small craft advisory until 3 am pdt Tuesday for pzz450.

Small craft advisory until 3 pm pdt this afternoon for pzz470-
475.

Gale warning until 3 am pdt Tuesday for pzz470.

Small craft advisory until 9 am pdt Monday for pzz455.

Gale warning until 3 pm pdt Monday for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 28 mi32 min 56°F 52°F1012.1 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 33 mi40 min NNW 18 G 21 57°F 55°F1011.2 hPa54°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA9 mi24 minN 410.00 miFair75°F39°F27%1009.3 hPa

Wind History from UKI (wind in knots)
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Last 24hrNE6CalmCalmN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3SW44N66NW10
G15
SW6N7N4
1 day agoW3W4CalmNW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3CalmE3N9NW9NW9W11N7N10
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm----CalmCalm3S5SE9SE6NW9W9
G16
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Tide / Current Tables for Albion, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Mendocino, Mendocino 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 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 (22,6,7,8)
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Ground Weather Radar Station Beal AFB, 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.