Friday, August23, 2019 L-36.com


Marine Weather and Tides
Coinjock, NC

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:28AMSunset 7:47PM Friday August 23, 2019 4:22 PM EDT (20:22 UTC) Moonrise 11:24PMMoonset 12:49PM Illumination 42% Phase: Third Quarter Moon; Moon at 23 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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ANZ633 Currituck Sound- 339 Pm Edt Fri Aug 23 2019
.severe Thunderstorm watch 612 in effect until 10 pm edt this evening...
Through 7 pm..SW winds 10 kt. Waves 1 foot. Showers likely.
Tonight..S winds 10 to 15 kt, becoming sw 5 to 10 kt in the late evening and early morning, then becoming nw late. Waves 1 foot. Tstms likely in the evening. Showers. Tstms likely after midnight.
Sat..NE winds 10 to 15 kt. Waves 1 foot. A chance of tstms in the morning. A chance of showers.
Sat night..NE winds 15 kt. Waves 1 foot. A chance of showers.
Sun..NE winds 15 to 20 kt. Gusts up to 30 kt in the afternoon. Waves 1 foot. A chance of tstms. A chance of showers.
Sun night..NE winds 15 to 20 kt. Waves 1 foot. A chance of showers.
Mon..NE winds 15 kt. Waves 1 foot. A chance of showers and tstms.
Mon night..NE winds 10 to 15 kt. Waves 1 foot. A chance of tstms in the evening. A chance of showers.
Tue..NE winds 5 to 10 kt. Waves 1 foot. A chance of showers.
Tue night..E winds 5 kt, becoming S after midnight. Waves 1 foot. A chance of showers in the evening. Winds and waves higher in and near tstms.
ANZ600 339 Pm Edt Fri Aug 23 2019
Synopsis for fenwick island de to currituck beach light nc out 20 nautical miles including virginia portion of the chesapeake bay currituck sound and portions of the james, york, and rappahannock rivers.. A cold front will drop across the area this evening through early Saturday. High pressure builds from the north through the weekend. The front becomes stalled off the coast late in the weekend with low pressure moving along it early next week.


7 Day Forecast for Marine Location Near Coinjock, NC
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location: 36.34, -75.95     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 231931
afdakq
area forecast discussion
national weather service wakefield va
331 pm edt Fri aug 23 2019

Synopsis
A cold front is slowly progressing through the area today. The front
will nearly stall over the carolina coast over the weekend. High
pressure will build in behind the front. Low pressure is expected to
develop along the front early next week.

Near term through Saturday night
As of 300 pm edt Friday...

issued a flash flood watch for portions of SE va and NE nc through
late tonight. The cold front is slowing its progression through va
this afternoon. Showers and thunderstorms are expected to form along
and out ahead of the front. SPC has the region in a slight risk for
severe wx with damaging winds being the primary threat. The mean
flow across SE va and NE nc is parallel to the front, and pw values
are around 2 inches so wpc has this part of the region in a slight
risk for excessive rain.

By Saturday morning the front is expected to be just off the
carolina coast. High pressure builds in behind the front. NE flow
and plenty of low level moisture will be available that additional
showers will be around, especially in far SE va and NE nc where pops
will still run 50-70 percent. High temps on Saturday will be much
cooler, only reaching the upper 70s in most locations, possibly
cooler in areas where rain persists. There will be a noticeable drop
in humidity especially from i64 north where dewpoints will be in the
upper 50s to lower 60s. Winds behind the front will be out of the
n NE generally 5 to 10 mph, and a bit higher right along the
coast.

Short term Sunday through Monday
As of 320 pm edt Friday...

the models continue to push the sfc cold front southward toward
the carolina coast by Saturday evening and then stall it along
the coast as the surface high builds eastward into new england
with a good set up for a wedge to develop along the eastern
seaboard. The big adjustment was to continue to slow the
progression of the pops southward on Sat night as another
shortwave rotates through the exiting trough over northeast and
mid-atlantic. By Sunday morning, the surface high looks like it
will push the moisture far enough south to limit the chances for
any showers to mainly NE nc and the va tidewater with drying of
the mid and upper level expected to continue through the day on
Sunday suppressing the pcpn farther south through the day.

However, the low level moisture should remain in place with
strong easterly flow through about 850 mb. That may be enough to
hold clouds in place and could limit the day time heating. For
now have gone close to 80s most areas, but if those lower clouds
do hold together could see readings more in the mid 70s toward
the southern va piedmont.

The forecast for Sunday night into Monday could change rapidly
over the next few days depending on the potential development of
a tropical system of the SE us coast. The models are struggling
with the development and location of the system with the 12z gfs
quicker to develop the system and move it northward into the
carolinas by Monday afternoon while the 12 ECMWF is slower and
farther to the SE off the coast with much less impact to the
region. So for now have maintained a low chance pops for showers
with the moisture overrunning the wedging high and getting
temperatures back toward the lower 80s with good onshore flow.

Again will need to monitor the potential tropical development
along the SE us coast this weekend.

Long term Monday night through Friday
As of 300 pm edt Friday...

the early part of the extended forecast will depend much upon any
development and potential track of the tropical disturbance
currently off the fl coast. Latest NHC outlook suggests that
this system will stay well off the local coast. Despite that,
given the proximity to the tropical system and the potential for
some tropical type showers to move across the area, and some
reinforcing moisture lift from weak upper disturbances moving
across the mid atlc and NE states in the w-sw flow aloft, will
maintain low chance pops Mon night through thu. However, if the
tropical system stays further offshore it is conceivable that
much of the middle of next week will be dry other than perhaps
some widely scattered afternoon evening storms. Otherwise, by
Friday the GFS and ECMWF both show drying across the area as a
ridge axis builds in from the west. As such, have kept Friday
dry.

Temps on Tuesday will trend slightly below normal due to the
extensive cloudiness (although it will be muggy), but then rise to
near normal for wed-fri.

Aviation 19z Friday through Wednesday
As of 200 pm edt Friday...

cold front is currently across central va roughly from lynchburg
over to richmond and ocean city. Winds have turned to the N ne
in those locations, and still W SW ahead of the front. Showers
and thunderstorms will develop this afternoon and evening
bringing periods of MVFR ifr conditions to the TAF locations. As
the front slows its progression towards the va nc line, MVFR
ceilings are likely to persist even after the heaviest of the
rain tapers off overnight. Even after the front pushes through
the area on Saturday, it will likely linger off the carolina
coast over the weekend. A low pressure developing along the
front and a high building in to the north will keep an easterly
flow with ample moisture for the chance of additional showers
especially at eastern TAF locations.

Marine
As of 245 pm edt Friday...

sfc cold front continues to drop south across waters this aftn.

Latest observations reflect nnely flow over northern waters just
north of the front, with ssw flow over southern waters 10-15 kt just
ahead of the boundary. Sfc cold front will continue to slowly drop
south through central and southern waters late today through this
evening, before slowing down further nearly stalling near the va nc
this evening... Eventually pushing south of the region by Saturday
aftn. Ahead of the front, SW will continue ~10 to 15 knots. Behind
the front, winds veer around to the nne at around 10 to 15 knots.

Still expect a round of showers and t-storms, with numerous smw mws
likely with convection along the frontal passage this evening over
the bay, rivers and northern central waters. A short-lived surge
likely as cooler air initially settles across the waters. Seas this
aftn and tonight will generally range from 2 to 3 feet, and waves in
the bay around 1 to 2 feet.

As surface high pressure builds in from the north and low pressure
develops along the southeast coast on Saturday, NE winds will likely
increase to 15 to 20 knots with gusts to 25 knots. Small craft
advisories have been issued for Saturday night and Sunday over the
bay and lower james, and may be needed with into early next week as
onshore flow persists. NE flow will allow for seas to build to 5 to
6 feet (potentially 7 feet out 20 nm) and waves at the mouth of the
bay to build to as high as 4 to 5 feet. Winds and seas look to
diminish by mid-week.

High pressure will continue to nose in from the north as the cold
front becomes quasi-stationary offshore late Sat through Sunday
aftn. By Sunday night, sfc low pressure begins to take shape and
eventually slides NE along the front offshore into early next week.

Pressure gradient becomes more compressed with time Mon tue. While
considerable model differences persist, probabilistic models all
seem to show sfc low tracking along the front. The GFS is a bit
weaker slower and closest to the coast, while the ECMWF and its
ensemble mean stronger and farther offshore. Upshot for the moment
is strongest winds will remain offshore and will reflect as much for
now. Nnw wind orientation should keep seas on the lower side of the
envelope and will stay just below wavewatch.

Akq watches warnings advisories
Md... None.

Nc... Flash flood watch through late tonight for ncz012>017-030>032.

Va... Flash flood watch through late tonight for vaz092-093-095>098-
524-525.

Marine... Small craft advisory from 6 pm Saturday to 6 pm edt Sunday for
anz630>632-634.

Small craft advisory from midnight Saturday night to 6 pm edt
Sunday for anz638.

Synopsis... Cmf
near term... Cmf
short term... Ess
long term... Mrd
aviation... Cmf
marine... Mam


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRFN7 15 mi143 min 2 ft
DUKN7 - Duck Pier, NC - 8651370 15 mi53 min S 9.9 G 12 86°F 60°F1013.5 hPa
44056 - Duck FRF, NC 16 mi23 min 74°F2 ft
44100 - Duck FRF 26m, NC (430) 20 mi23 min 81°F2 ft
MNPV2 - 8639348 - Money Point, VA 36 mi53 min W 6 G 8.9 89°F 80°F1012.8 hPa
44086 37 mi28 min 71°F3 ft
44099 - Cape Henry, VA (147) 41 mi53 min 77°F2 ft
CHYV2 - 8638999 - Cape Henry, VA 41 mi53 min NW 8 G 9.9 85°F 1013.2 hPa
CRYV2 - 8638595 - South Craney Island, VA 43 mi53 min W 7 G 9.9 90°F 1013 hPa
ORIN7 - 8652587 - Oregon Inlet Marina, NC 43 mi59 min S 19 G 24 83°F 85°F1014.7 hPa
44064 46 mi33 min NNE 3.9 G 5.8 83°F 1012.4 hPa
SWPV2 - 8638610 - Sewells Point, VA 46 mi59 min 81°F1013.1 hPa
CHBV2 48 mi59 min NNE 4.1 G 5.1 83°F 1012.4 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 48 mi59 min WSW 6 G 7 85°F 1012.6 hPa
44087 49 mi23 min 82°F1 ft

Wind History for Duck, NC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Currituck, Currituck County Airport, NC5 mi68 minWSW 810.00 miPartly Cloudy89°F76°F66%1013.9 hPa
Elizabeth City C/G Regional Airport, NC13 mi3.5 hrsSSW 1110.00 miFair89°F75°F65%1015 hPa

Link to 5 minute data for KONX

Wind History from ONX (wind in knots)
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W5CalmSW6SW5SW6S5S4SW5SW5SW6SW5SW5SW10SW10SW9SW7SW7SW12
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Tide / Current Tables for Currituck Beach Light, North Carolina
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Currituck Beach Light
Click for Map
Fri -- 12:56 AM EDT     3.29 feet High Tide
Fri -- 06:27 AM EDT     Sunrise
Fri -- 07:02 AM EDT     0.81 feet Low Tide
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 01:29 PM EDT     3.87 feet High Tide
Fri -- 01:49 PM EDT     Moonset
Fri -- 07:43 PM EDT     Sunset
Fri -- 08:07 PM EDT     1.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.13.33.12.721.410.811.42.12.93.53.83.83.532.31.71.31.11.21.62.1

Tide / Current Tables for Duck Pier, outside, North Carolina
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Duck Pier
Click for Map
Fri -- 12:56 AM EDT     2.97 feet High Tide
Fri -- 06:27 AM EDT     Sunrise
Fri -- 07:11 AM EDT     0.62 feet Low Tide
Fri -- 10:58 AM EDT     Last Quarter
Fri -- 01:31 PM EDT     3.56 feet High Tide
Fri -- 01:48 PM EDT     Moonset
Fri -- 07:43 PM EDT     Sunset
Fri -- 08:08 PM EDT     0.89 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.832.82.41.91.40.90.60.71.21.82.43.13.53.53.22.82.21.61.10.911.31.8

Weather Map and Satellite Images
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wmap_A
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.
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Wind Forecast for Wakefield, VA (16,3,4,5)
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Ground Weather Radar Station Wakefield, VA
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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.