Tuesday, May23, 2017 L-36.com


Marine Weather and Tides
Calpella, 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 5:51AMSunset 8:27PM Monday May 22, 2017 11:57 PM PDT (06:57 UTC) Moonrise 3:04AMMoonset 3:54PM Illumination 6% Phase: Waning Crescent; Moon at 27 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- 944 Pm Pdt Mon May 22 2017
Tonight..SW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight.
Tue..S winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog in the morning.
Tue night..SE winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight.
Wed..SE winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft at 11 seconds. Patchy fog in the morning.
Wed night..SE winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft at 11 seconds.
Thu..W winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft.
Fri..W winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 4 ft. Patchy fog.
PZZ500 944 Pm Pdt Mon May 22 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Surface high pressure over the eastern pacific will strengthen from tonight into Wednesday morning keeping northwesterly winds going over the outer waters. A surface ridge of high pressure over the central coast will cause winds over the inner coastal waters to be primarily light southwesterly through Tuesday. Except for the Monterey bay onshore winds will be gusty over the bays each afternoon and evening at least through mid-week.

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 222234
afdeka
area forecast discussion
national weather service eureka ca
334 pm pdt Mon may 22 2017

Synopsis Hot and dry inland weather will continue through
Tuesday then will gradually fall back to normal values late in
the work week. Coastal areas will remain more seasonal with
morning clouds and afternoon sunshine. There will be a slight
chance for afternoon thunderstorms across the mountainous interior
through the week.

Discussion Hot temperatures have returned to northwest
california as a fairly strong ridge axis slides across the
region. This afternoon is looking like the hottest day this week
with temperatures across the interior already reaching the mid
90s. Coastal areas are seeing a very nice day but just not as
warm as previously forecasted from a few days ago. Tuesday should
see a very similar day as Monday but inland temperatures will be
cooler by a few degrees as the ridge begins to break down. Coastal
clouds are expected again tonight but expect a very nice day with
mostly sunny conditions once again for Tuesday afternoon. On
Tuesday a weak cutoff low will undercut the ridge and slowly drift
towards the western united states. This will draw modest
southeast midlevel flow and increasing moisture to the interior
mountains resulting in a few showers or thunderstorms for Tuesday
and Wednesday afternoons. Looking into the second half of the
week, 500mb heights will fall as an upper low from the northwest
breaks down the ridge of high pressure. This will allow
temperatures to gradually fall to near normal values for this time
of year starting Wednesday through the end of the work week.

Afternoon thunderstorms will continue to be be a possibility as
the cutoff low eventually becomes absorbed into the upper flow.

High pressure will build over the weekend as the upper trough
tracks over the central united states. This will cause inland
temperatures to increase once again over the weekend. Kml/jt

Aviation Looks like we are in the summer pattern of overnight
marine stratus and then daytime clearing for the redwood coast.

Overnight, marine stratus came in and lowered the conditions down to
lifr for arcata and mckinleyville. However, the extent of marine
stratus was not as great as the day before. Since this morning, the
back edge of the marine stratus was south of crescent city. The
marine stratus was just offshore from arcata airport. Think that
tonight will be nearly the repeat of last night, with marine stratus
moving back into crescent city and arcata airports potentially
dropping conditions down to lifr. By tomorrow morning, we will have
clearing skies from north to south, where crescent city will break
out before arcata airport. Elsewhere, ukiah should stayVFR through
the next 24 hours.

Marine Changes to the previous forecast package were very minor.

Light to moderate north winds with fairly gentle seas. However, the
lull won't last long. The north winds will increase starting
tomorrow as northelry pressure gradient tightens over the area.

Winds in the northern outside waters will likely reach gale
conditions by Wednesday morning. Seas will also build and become
fairly steep with the stronger north winds. Thus, have a small craft
advisory in effect for the outside waters for tonight, then
spreading into the inside waters by tomorrow night. Think that gale
conditions is likely for the northern outside waters by Wednesday.

Thus, issue a gale watch for the northern outside water. For the
southern outside waters, the potential for gale position is a little
bit more marginal.

Eka watches/warnings/advisories
Ca... None.

Northwest california coastal waters... Small craft advisory from 9 pm Tuesday to 3 am pdt Thursday for
pzz450-455.

Gale watch from late Tuesday night through late Wednesday night
for pzz470.

Small craft advisory from 9 pm this evening to 3 am pdt
Wednesday for pzz470.

Small craft advisory from 9 pm this evening to 3 am pdt Thursday
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 mi39 min Calm G 2.9 49°F 49°F1015.6 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 33 mi37 min NNW 1.9 G 3.9 48°F 1014.8 hPa48°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA9 mi61 minN 010.00 miFair70°F52°F53%1013.4 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3CalmSE43SE9SE8SE6NW10W6CalmCalmCalmCalmCalm
1 day agoW3CalmCalmCalmCalmCalmCalmCalmCalmCalmNE3E4Calm4E5SE6SW76N7N7N4W3CalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalm334E4E4NE6NE8W8W10W8NW5CalmCalmCalmCalm

Tide / Current Tables for Albion, California
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Albion
Click for Map
Tue -- 03:55 AM PDT     -0.13 feet Low Tide
Tue -- 04:43 AM PDT     Moonrise
Tue -- 05:55 AM PDT     Sunrise
Tue -- 10:20 AM PDT     4.49 feet High Tide
Tue -- 03:40 PM PDT     1.19 feet Low Tide
Tue -- 06:06 PM PDT     Moonset
Tue -- 08:28 PM PDT     Sunset
Tue -- 09:59 PM PDT     6.20 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.82.310.1-0.10.2123.144.54.43.82.91.91.31.21.72.73.955.96.25.8

Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Tue -- 03:56 AM PDT     -0.18 feet Low Tide
Tue -- 04:43 AM PDT     Moonrise
Tue -- 05:55 AM PDT     Sunrise
Tue -- 10:11 AM PDT     4.27 feet High Tide
Tue -- 03:34 PM PDT     0.98 feet Low Tide
Tue -- 06:06 PM PDT     Moonset
Tue -- 08:29 PM PDT     Sunset
Tue -- 09:58 PM PDT     6.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.72.310.1-0.20.10.923.13.94.34.13.42.51.61.111.52.53.74.95.86.15.8

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 (2,6,7,8)
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Ground Weather Radar Station Beal AFB, 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.