Wednesday, March29, 2017

Marine Weather and Tides
Clarksville, VA

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 7:01AMSunset 7:35PM Wednesday March 29, 2017 1:19 AM EDT (05:19 UTC) Moonrise 7:16AMMoonset 8:31PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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 290152
area forecast discussion
national weather service wakefield va
952 pm edt Tue mar 28 2017

A cold front crosses the region this evening. High pressure
builds in from the north on Wednesday. The high retreats to the
northeast on Thursday as the next system approaches from the
west. A strong system is expected to impact the region Friday
and Friday night. Dry weather returns for the weekend.

Near term /through Wednesday/
The current upper air analysis and WV imagery shows a trough
pushing offshore. At the surface, a broad weak low lingers from
the carolina coastal plain to the mid-atlantic coast, with high
pressure centered N of the great lakes. Earlier convection has
rapidly diminished this evening, with only some very isolated
light showers lingering over coastal SE va. A 20% pop will be
maintained for far SE va and coastal NE nc through midnight,
with dry conditions expected to prevail after midnight across
the entire area. Locations that received rain today could
experience some patchy fog late this evening, but this should
diminish after midnight as a weak cold front pushes through the
area resulting in a wind shift to n-nne along with lowering
dewpoints. Expect some lingering clouds to persist through
Wednesday morning. Lows mainly 50-55 f (except upr 40s ern
shore). Becoming partly/mostly sunny Wed after some early mostly
cloudy conditions (especially south) as drier air moves in from
the n. Somewhat cooler but still a little above avg with highs
60-65f near the coast and in the upper 60s to lower 70s well

Short term /Wednesday night through Friday/
Upper ridge axis quickly moves back into the region by thu,
allowing return of mid/high clouds during the day. Gfs/nam
bufkit soundings suggest skies become mostly cloudy by mid-late
morning for WRN 1/2 of the cwa. With fairly low mixing and
overrunning clouds, expect a much cooler day with highs mainly
ranging from the lower to mid 50s near the coast to the upper
50s over interior eastern va/northeast nc. Kept it dry through
the day despite the increase in clouds ahead of the next system.

A complex low pressure system approaches from the west late thu
night and early Fri before slowly crossing the region
Friday/Friday night. Guidance in good agreement with respect to
potential for widespread showers/tstms and potential for heavy
rain during fri. Will limit pops to 20-30% along west of i-95
prior to 12z Fri before increasing to 80% to 90% all areas
during fri.

Long term /Friday night through Tuesday/
Good chc for showers continues Fri night into Sat morning, as
low pressure area and associated cold front crosses the area
then moves off the coast. Dry wx and high pressure returns for
sat aftn thru at least Mon morning. Yet another system will
bring the chc for showers again late Mon thru tue.

Highs in the mid 60s to lower 70s sat, in the 60s to near 70
sun and mon, and in the 60s to lower 70s tue. Lows in the upper
40s to mid 50s Fri night, in the 40s Sat night and Sun night,
and in the mid 40s to lower 50s Mon night.

Aviation /02z Wednesday through Sunday/
A few showers and isolated t-storm continue on the radar but
expect this activity to soon die off with the sunset. The
frontal boundary has moved into SE va and will push offshore by
midnight. Winds are light across the region but will generally
shift from SW to nw-ne during the overnight. The n-ne flow will
produce some stratus ceilings overnight especially for eastern
portions of the cwa. This will result in ceilings of 1000-2000
ft for a brief period in the morning. Some ifr conditions may
also develop.

Skies will scatter out and lift from north to south on
Wednesday as high pressure slowly builds into the region from
the north. DryVFR conditions through Thursday. However, clouds
will increase on Thursday as another front approaches the
region. Clouds then thicken and lower Thursday night as the
next low pressure system approaches the area. This system should
bring widespread showers and thunderstorms to the area
Friday/Friday night as it crosses the mid atlantic states.

Late this aftn, sfc low pressure was over ERN md with a cold
front extending fm the low SW thru cntrl va and nc. SW winds 5
to 15 kt this evening will shift to the NW then N later tonight
into Wed morning, as the low/front push out to sea and high
pressure starts to build in fm the great lakes region. North
winds mainly 10-15 kt expected during wed, as sfc high pressure
ridges down into the mid atlc region. While there could be a
few gusts to low end SCA in the ches bay Wed morning thru
midday, still do not expect predominate SCA conditions to be met
thru wed. However, winds will be marginal for much of the
morning and early aftn in the lower chesapeake bay, and will
need to watch marginal SCA gusts during that time.

Otherwise, cool high pressure will continue to build in fm the
north Wed night into Thu morning, before it slides out to sea
thu aftn and night. Nne winds 10-15 kt Wed night thru thu
morning, become NE 5 to 10 kt Thu aftn. E winds 5 to 10 kt thu
night become SE 10-15 kt Fri morning, and SE or S 10-20 kt fri
aftn into early Fri evening, as a warm front lifts acrs the
waters. Waves 1-3 ft and seas 2-4 ft this evening thru wed, then
seas could build to near 5 ft over portions of the coastal
waters Wed night into thu. But, no SCA headlines at this time.

Could have SCA conditions over portions of the waters Fri aftn
thru Fri night.

Akq watches/warnings/advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Lkb
near term... Ajz/lkb
short term... Jdm/lkb
long term... Tmg
aviation... Bmd/jef
marine... Tmg

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Henderson-Oxford Airport, NC16 mi34 minNW 710.00 miFair60°F48°F65%1014.6 hPa

Wind History from HNZ (wind in knots)
Last 24hrS7S6SW9SW6S6SW9S6SW6SW11SW10SW8--SW6W8
1 day agoS8S7S6S4S6SW4SW4S8S8S11SW13
2 days agoS5S4S4S3S4SE4S3S4CalmS6SW5SW6SW9S9

Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Wed -- 12:28 AM EDT     0.02 feet Low Tide
Wed -- 05:26 AM EDT     3.68 feet High Tide
Wed -- 06:59 AM EDT     Sunrise
Wed -- 08:10 AM EDT     Moonrise
Wed -- 01:08 PM EDT     -0.08 feet Low Tide
Wed -- 05:58 PM EDT     3.38 feet High Tide
Wed -- 07:29 PM EDT     Sunset
Wed -- 09:26 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Puddledock Sand
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Puddledock Sand & Gravel
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Wed -- 05:34 AM EDT     3.68 feet High Tide
Wed -- 06:59 AM EDT     Sunrise
Wed -- 08:10 AM EDT     Moonrise
Wed -- 12:19 PM EDT     -0.26 feet Low Tide
Wed -- 05:56 PM EDT     3.19 feet High Tide
Wed -- 07:29 PM EDT     Sunset
Wed -- 09:26 PM EDT     Moonset
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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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Mid-Atlantic    EDIT

Wind Forecast for Wakefield, VA (1,6,7,8)
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Ground Weather Radar Station Raleigh/Durham, NC
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weather_mapweather_map weather_map

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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 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 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.