Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Clarksville, VA

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 7:22AMSunset 6:35PM Tuesday October 17, 2017 4:18 PM EDT (20:18 UTC) Moonrise 4:05AMMoonset 4:47PM Illumination 7% 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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7 Day Forecast for Marine Location Near Clarksville, VA
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location: 36.59, -78.5     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 171935
afdakq
area forecast discussion
national weather service wakefield va
335 pm edt Tue oct 17 2017

Synopsis
High pressure remains over the mid atlantic region through the
remainder of the week with temperatures gradually moderating.

Near term until 6 am Wednesday morning
The current surface analysis shows ~1028mb high pressure
centered over the low potomac river. The sky is clear, except
for a band of mid high clouds skirting the albemarle sound and
some stratocumulus just offshore. The high remains over the region
tonight resulting in ideal radiational cooling conditions with
clear, cool, and dry conditions expected. Lows tonight will
generally be in the mid upper 30s for rural inland locations,
with low mid 40s for coastal SE va NE nc. Frost should be
widespread enough early Wed morning across rural outlying
locations of the piedmont to warrant a frost advisory. Went with
a frost advisory from mecklenburg to powhatan to caroline county
after coordination with our neighboring offices.

Short term 6 am Wednesday morning through Friday
High pressure remains over the region Wednesday thru Friday as
the airmass gradually moderates. Sunny clear and dry conditions
will continue. Highs Wednesday range from 65-70f followed by
highs Thursday of 70-75f. Highs Friday will reach the mid 70s
for most places. Lows Wednesday night will generally be in the
40s. Lows Thursday night will range from the mid 40s inland to
the low mid 50s coast.

Long term Friday night through Tuesday
High pressure gradually pushes off the coast over the weekend.

Temperatures will continue to moderate with sky conditions no
worse than partly sunny. Much disagreement in the models by the
first of next week with respect to the arrival of the next cold
front. ECMWF is much wetter than the GFS with its deeper trough
aloft and a potential sfc low developing along the coast. Will
show chance pops Monday Tuesday, then another potential cool
down by the middle of next week. Highs sat-mon in the mid-upr
70s except 70-75 along the coast. Lows Sat nite 50-60. Lows sun
nite in the mid 50s to low 60s. Lows Mon night in the upr 50s to
mid 60s.

Aviation 19z Tuesday through Sunday
High pressure continues to build into the region this afternoon.

Outside of a band of mid high clouds skirting the albemarle
sound, the sky is clear. Winds remain generally light N ne,
except for some lingering gusts to 20 kt at the immediate coast.

High pressure builds over the region tonight with the wind
becoming calm to very light under a clear sky. High pressure
remains over the region Wednesday through Saturday with the sky
remaining mostly clear with a light wind.

Marine
High pressure continues to push into the region and the gradient
along the coast continues to weaken along with the gradual
ending of the cold advection. This all spells the weakening of
the wind fields. So while the NE winds continue, but they will
continue to diminish in intensity. Seas are also dropping as
well with the relaxing wind field. So with this package will
drop the SCA headlines across the lower ches bay, currituck
sound and the 2 northern coastal zones. The remains SCA flags
will continue through 00z tonight and midnight, but conditions
may improve so that the advisories can be dropped early.

The high becomes centered over western and central virginia
tonight and the high remains entrenched over the region through
the remainder of the week into the weekend. There is a weak
front that tries to move through the northern waters on Friday
afternoon, which would turn the winds to the NW briefly and may
kick winds up to the 10 - 15 kt range, but otherwise expect
light winds and seas from Wednesday through the weekend.

Equipment
The kakq radar will be down through Wednesday, october 18th for
radome repairs.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... Frost advisory from 2 am to 9 am edt Wednesday for vaz048-
060>062-064>069-509>511.

Marine... Small craft advisory until 8 pm edt this evening for anz654-
656.

Small craft advisory until midnight edt tonight for anz658.

Synopsis... Jdm jao
near term... Jdm
short term... Jdm
long term... Jdm
aviation... Jdm
marine... Ess
equipment...



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Henderson-Oxford Airport, NC16 mi33 minNNE 410.00 miFair60°F33°F37%1026.1 hPa

Wind History from HNZ (wind in knots)
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Last 24hrCalmN4NE3N5N5N3N4N3N3N3N3N5N4N5N5N5N5N8NE6N5N6NE8N8N5
1 day agoSW10
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SW9S5S6S9S9S7SW9SW8SW9SW7SW6SW5CalmN5N10
G18
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NW4NW7N6N4NE4CalmCalm
2 days agoCalmSE3CalmS3S3SE3S3S4S3S4S5SW6S4SW5S6S5SW6SW5SW7SW9SW10
G14
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G16
SW9

Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Petersburg
Click for Map
Tue -- 02:37 AM EDT     3.37 feet High Tide
Tue -- 04:59 AM EDT     Moonrise
Tue -- 07:19 AM EDT     Sunrise
Tue -- 09:57 AM EDT     0.03 feet Low Tide
Tue -- 03:04 PM EDT     3.43 feet High Tide
Tue -- 05:42 PM EDT     Moonset
Tue -- 06:29 PM EDT     Sunset
Tue -- 10:23 PM EDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.92.73.33.332.51.91.30.70.300.41.42.43.13.43.22.82.11.510.40.10.2

Tide / Current Tables for Puddledock Sand
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Puddledock Sand & Gravel
Click for Map
Tue -- 02:38 AM EDT     3.21 feet High Tide
Tue -- 04:59 AM EDT     Moonrise
Tue -- 07:19 AM EDT     Sunrise
Tue -- 08:45 AM EDT     0.16 feet Low Tide
Tue -- 03:06 PM EDT     3.43 feet High Tide
Tue -- 05:42 PM EDT     Moonset
Tue -- 06:29 PM EDT     Sunset
Tue -- 09:14 PM EDT     0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.83.13.22.92.41.71.10.40.20.71.62.22.73.23.43.32.82.21.50.70.20.41.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Wakefield, VA (16,3,4,5)
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Ground Weather Radar Station Raleigh/Durham, NC
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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.