Saturday, March24, 2018

Marine Weather and Tides
Clarksville, VA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 7:08AMSunset 7:30PM Saturday March 24, 2018 12:33 AM EDT (04:33 UTC) Moonrise 11:22AMMoonset 1:01AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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 240122
area forecast discussion
national weather service wakefield va
922 pm edt Fri mar 23 2018

A weak trough will drop southeast and across the region early
tonight. Otherwise, weak high pressure will build down into and
over the area tonight into Saturday morning. Low pressure moves
east from the mississippi valley during Saturday, then across
the carolinas and off the coast Saturday night into Sunday
morning. High pressure will build in from the north Sunday
afternoon through Monday.

Near term until 6 am Saturday morning
Latest wx analysis reveals strong 1040+mb sfc high over hudson
bay into northwest ontario, extending south into the ohio valley
and the eastern gulf coast. Early evening WV imagery features a
deep, closed upper level low, which continues to spin off the
coast of the pac nw. Resultant moist SW flow streaming ne
towards a weakening mid-level shortwave and sfc low pressure
over the central high plains of W ks this evening. This sfc low
will be our next weather maker into the short term, as it
continues to slide e-se along the wavy warm front extending from
ne ks into W tn late tonight through midday Saturday.

Closer to home, mid to high clouds diminishing in coverage as
weak sfc trough pushes offshore of the mid-atlantic northeast
coast. A clear to mostly clear sky will result for the overnight
into Sat morning, as weak sfc high pressure builds over the
region. We'll start to re-introduce high clouds out ahead of
the system to the west after sunrise into later Sat morning.

Cold with lows ranging fm the upper 20s to mid 30s.

Short term 6 am Saturday morning through Monday
The center of strong high pressure will remain well north of the
region near hudson bay during sat. Meanwhile, low pressure
will track acrs the ms valley toward the tn valley. Drier air
associated with the weak sfc high will hold off pcpn fm moving
into SW counties until mainly aftr 21z. Will be going with a
blend of the 12z 23 GFS and 12z 23 ECMWF models as far as timing
of pcpn and placement of pops for late Sat thru Sun morning.

Model trends with this next low pressure area continue to be
slgtly farther s, as low pressure tracks acrs the carolinas and
off the coast Sat night into Sun morning. Pcpn will start out as
rain late Sat aftn into Sat evening, before mixing with or
changing to snow during Sat evening into the overnight. Have
adjusted pops slgtly farther S during the event based on the
latest guidance. With lesser QPF expected, a snow ratio of
about 8 to 1, and mainly light snow only occurring for about 6-8
hrs, only expect .5 to possibly 1 inch of snow accumulation
over scntrl va counties mostly. There could be a dusting to a
few tenths of an inch over interior SE va and interior NE nc fm
sat evening into Sun morning. Highs on Sat 45-50, but falling
into the upper 30s to near 40 acrs the west once the pcpn
arrives. Lows Sat night will range fm the upper 20s to mid 30s.

Pcpn quickly ends acrs the SE Sun morning, as the low moves out
to sea, and high pressure starts to build into the area fm the
north. Sky will become partly to mostly sunny, but remaining
chilly due to a brisk NE wind. Highs in the mid to upper 40s.

Strong high pressure then builds down into and over the region
sun night and mon. Clear or mostly clear and cold Sun night with
lows ranging fm the mid to upper 20s nw, to the mid to upper 30s
se. Mostly sunny on Mon with highs ranging fm the mid 40s to
lower 50s.

Long term Monday night through Friday
The extended part of the forecast starts out cool then
temperatures moderate mid-late next week. Ridge aloft and sfc hi
pres will be aligned n-s INVOF E coast Mon night-tue... Then
gradually weaken as deep layered SW flow develops from the
plains states to the mid-atlantic region. Used blend of
gfs ECMWF wpc through the period wrt timing return of cloudiness
and increased pops. Dry wx hangs on through Tue night early
wed... Then pops expected to increase Wed afternoon-fri along w
vrb clouds mostly cloudy conditions.

Lows Mon night in the u20s W to the m-u30s at the coast. Highs
tue in the m-u40s at the coast (w still a bit of a ene breeze).

Lows Tue night from the m30s inland to around 40f at the
immediate coast. Highs Wed 50-55f at the coast to the l60s
inland. Lows Wed night ranging through the 40s. Highs Thu in the
m-u50s at the coast to the m-u60s in central va to interior ne
nc. Highs Fri 55-60f at the coast to the l-m60s in central va
and the u60s across interior SRN va-ne nc.

Aviation 01z Saturday through Wednesday
Vfr conditions will continue overnight into Sat aftn, as high
pressure builds into the area. Increasing mid to high clouds
along and SW of kric on Saturday, as low pressure and a warm
front affects the region later Sat into Sun morning.

low pressure approaches from the west during sat, and tracks
acrs the carolinas and off the coast Sat night into Sun morning.

This could produce flight restrictions with a mix of rain and
snow at phf orf ecg and possibly very light snow at ric. High
pressure becomes anchored over new england, withVFR conditions
expected from Mon through the middle of next week.

Nw winds below SCA over the local waters attm... Expected to
continue into this eve. Another surge of low level CAA and
increased speeds expected by mid-late eve into the overnight
hours. Boosted speeds to lo end SCA over the ches bay mainly
after 02z 24 and continued through 09-11z 24... While elsewhere
speeds expected to remain (just) below SCA criteria (based on
hi res guidance). Lo pres passes S of the waters late Sat into
sun morning... But poor mixing will keep any SCA potential
limited. Nne winds and seas waves increase (to at least mid
range sca) beginning midday afternoon Sun as lo pres deepens
offshore. These elevated conditions expected to remain over the
local waters into Tue as lo pres is slow to move farther out to

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 6 am edt Saturday for anz630>632-

Synopsis... Tmg
near term... Mam tmg
short term... Mpr tmg
long term... Alb
aviation... Mam
marine... Alb

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Henderson-Oxford Airport, NC16 mi58 minNW 310.00 miFair40°F16°F39%1022.3 hPa

Wind History from HNZ (wind in knots)
1 day agoNW3W4NW7W5NW5NW4NW5W5NW9
2 days agoN3N7N5N4N3CalmCalmCalmCalmCalmNW7NW3N5NW5W7W4W3W3CalmW6W8

Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Sat -- 01:58 AM EDT     Moonset
Sat -- 04:41 AM EDT     0.33 feet Low Tide
Sat -- 07:07 AM EDT     Sunrise
Sat -- 09:50 AM EDT     3.36 feet High Tide
Sat -- 11:35 AM EDT     First Quarter
Sat -- 12:15 PM EDT     Moonrise
Sat -- 05:54 PM EDT     0.31 feet Low Tide
Sat -- 07:25 PM EDT     Sunset
Sat -- 10:45 PM EDT     2.92 feet High Tide
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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Sat -- 01:57 AM EDT     Moonset
Sat -- 04:19 AM EDT     0.07 feet Low Tide
Sat -- 07:07 AM EDT     Sunrise
Sat -- 10:16 AM EDT     3.44 feet High Tide
Sat -- 11:35 AM EDT     First Quarter
Sat -- 12:15 PM EDT     Moonrise
Sat -- 05:07 PM EDT     0.13 feet Low Tide
Sat -- 07:25 PM EDT     Sunset
Sat -- 10:44 PM EDT     2.71 feet High Tide
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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GOES Local Image of Mid-Atlantic    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (0,6,7,8)
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Ground Weather Radar Station Raleigh/Durham, NC
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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.