Monday, May22, 2017 L-36.com


Marine Weather and Tides
Philo, 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 10:33 AM PDT (17:33 UTC) Moonrise 3:05AMMoonset 3:55PM Illumination 9% 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- 902 Am Pdt Mon May 22 2017
Today..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds. Patchy fog in the morning.
Tonight..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight.
Tue..SW winds 5 kt. Wind waves 2 ft or less. NW swell 3 ft at 9 seconds. Patchy fog in the morning.
Tue night..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight.
Wed..S winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds. Patchy fog in the morning.
Thu..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft.
Fri..NW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft.
PZZ500 902 Am 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... High pressure building over the pacific northwest will maintain light to moderate northwesterly winds through midweek. Winds will increase midweek as a thermal trough develops along the coast tightening the pressure gradients over the northern outer waters. Strongest winds are expected over the outer waters while the inner waters remain mostly light.

7 Day Forecast for Marine Location Near Philo, CA
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location: 39.15, -123.45     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 221202
afdeka
area forecast discussion
national weather service eureka ca
502 am pdt Mon may 22 2017

Synopsis Hot and dry weather will continue through Tuesday then
inland temperatures 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 will return to northwest california
today as the ridge axis slides across the region. Today is still
anticipated to be the hottest day this week with temperatures across
the interior reaching the 80s and 90s with a few warmer valleys
hitting the upper 90s. Coastal areas won't be as warm as previously
anticipated, but once the patchy morning fog dissipates, you can
expect temperatures in the 60s this afternoon. Tuesday will bring
more hot weather but 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

Aviation Much of the coastal cloud deck disappeared late on
Sunday. However, recent IR satellite imagery shows the deck re-
forming in earnest early this morning. Kcec and kacv conditions will
continue to vary this morning as the E edge of the cloud deck
impacts these sites. Have forecast improvement later in the morning
and during the afternoon, but expect the cloud deck to continue
offshore thru most of the day. Low level flow will become lighter,
but models continue to hint at eddies/flow reversals along the
immediate coast which could periodically advect more clouds and fog
toward coastal airports. Uncertainty is high with the forecast for
these sites.VFR conditions are expected to continue at kuki. Winds
will be light. /sec

Marine N winds will continue to gradually decrease today as the
tighter pressure gradient weakens and pulls offshore. Short period
waves will respond in kind. This will lead to a period of sub-
advisory winds and seas starting around midday today. However,
conditions in the W portion of the N offshore zone will continue to
flirt with low end advisory winds.

N winds are forecast to increase again by late tonight or early
Tuesday. A gale watch will likely be needed on one of today's
forecast issuances for the N offshore zone. Wind speeds are expected
to MAX out late Wednesday with the potential for some storm force
gusts over the N offshore zone. /sec

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

Northwest california coastal waters... Small craft advisory until noon pdt today for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 21 mi57 min SSW 5.1 G 8 47°F 47°F1016.4 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 28 mi43 min SSE 1.9 G 3.9 48°F 4 ft1015.8 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, CA13 mi37 minVar 310.00 miFair76°F51°F42%1013.8 hPa

Wind History from UKI (wind in knots)
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Last 24hrE4Calm4E5SE6SW76N7N7N4W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3
1 day ago4E4E4NE6NE8W8W10W8NW5CalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmNE3
2 days agoCalm5SE5E5Calm--W9
G18
W8N6W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm33

Tide / Current Tables for Albion, California
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Albion
Click for Map
Mon -- 03:09 AM PDT     0.62 feet Low Tide
Mon -- 04:06 AM PDT     Moonrise
Mon -- 05:55 AM PDT     Sunrise
Mon -- 09:17 AM PDT     4.28 feet High Tide
Mon -- 02:52 PM PDT     0.95 feet Low Tide
Mon -- 04:55 PM PDT     Moonset
Mon -- 08:28 PM PDT     Sunset
Mon -- 09:20 PM PDT     5.85 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.91.810.60.81.42.33.13.94.34.23.62.71.81.111.32.23.34.45.35.85.75

Tide / Current Tables for Point Arena, California Current
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Point Arena
Click for Map
Mon -- 12:26 AM PDT     -1.20 knots Max Ebb
Mon -- 04:06 AM PDT     Moonrise
Mon -- 04:16 AM PDT     0.00 knots Slack
Mon -- 05:56 AM PDT     Sunrise
Mon -- 07:05 AM PDT     0.96 knots Max Flood
Mon -- 10:10 AM PDT     -0.00 knots Slack
Mon -- 12:45 PM PDT     -1.01 knots Max Ebb
Mon -- 04:12 PM PDT     0.00 knots Slack
Mon -- 04:55 PM PDT     Moonset
Mon -- 07:10 PM PDT     1.06 knots Max Flood
Mon -- 08:27 PM PDT     Sunset
Mon -- 10:12 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.2-1.2-0.9-0.6-0.10.40.810.90.60.1-0.5-0.9-1-0.8-0.5-0.10.40.81.110.70.1-0.5

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 (13,3,4,5)
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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.