Alert archive / Virginia / Coastal Flood Statements in 2017

Coastal Flood Statement 20, NWS Wakefield, VA

May 25, 201715 counties in Virginia; Currituck County, North Carolina

NWS Wakefield, VA issued this coastal flood statement at May 25, 2017, 4:58 PM EDT for 15 counties in Virginia; Currituck County, North Carolina. It took effect at May 25, 2017, 6:00 PM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
May 25, 2017, 4:58 PM EDT (20:58 UTC)
In effect from
May 25, 2017, 6:00 PM EDT
Expired
May 26, 2017, 3:00 AM EDT
In force
9 hr
Issued by
NWS Wakefield, VA

Counties Currituck County, NC, City of Chesapeake, VA, City of Hampton, VA, City of Newport News, VA, City of Poquoson, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Gloucester County, VA, James City County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA, Northumberland County, VA, Surry County, VA, Westmoreland County, VA, York County, VA

The radar

The Norfolk radar (KAKQ), 57 km from the middle of the area, began a volume at 20:59 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.0 hours before the alert went out and 120 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2017-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 492 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2017-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
492 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
478 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wakefield, VA wrote its last area forecast discussion before this coastal flood statement went out at May 25, 3:37 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, May 25, 3:37 PM EDT, 1 hour 21 minutes before
Area Forecast Discussion
National Weather Service Wakefield VA
337 PM EDT Thu May 25 2017

.SYNOPSIS...
Unsettled conditions will continue through this evening as an
upper level trough crosses the local area from the west.
Conditions improve on Friday. Warmer temperatures and chance
for showers and thunderstorms will return over the weekend. A
cold front will approach from the west on Memorial Day.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Dry slot continuing to fill up w/ BKN CU and developing (SCT)
tstms as an upper level trough enters the region...steepening
lapse rates. FA remains under marginal risk svr from SPC...main
threats from any stms will be gusty winds/hail. Otherwise...VRB
clouds/partly sunny into this evening. For the
overnight...becoming partly cloudy S w/ any lingering SHRAS
waning...mostly cloudy N w/ possible additional ISOLD-SCT SHRAS.
Lows from the m50s W to l60s at the immediate coast.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
Other than possible ISOLD SHRAs and VRB clouds far NNE locations
early Fri as upper level low is slow to reach New England...drying
out w/ deep layered WNW flow. Expecting a return of temperatures
back to or above normal w/ partly-mostly sunny conditions. Highs
mainly 80 to 85F...except u70s at (most of) the beaches.

Weak ridge aloft nudges into the region from the WSW Fri night
into Sat. Models in a bit better consensus w/ the arrival of
weak S/W tracking into the FA by Sat afternoon. Combination of
daytime heating and that S/W in WNW flow aloft will likely result
in at least SCT convective development. Will have PoPs
increasing to 30-50% over most of the FA. SPC has outlooked
wrn/central areas of FA SLGT risk svr...other areas marginal
svr. Otherwise...partly cloudy Fri night- Sat morning...then
becoming mostly cloudy Sat afternoon. Lows from the u50s NW to
the low 60s SE. Highs Sat from the m-u70s- around 80F on the
eastern shore to the m-u80s inland.

Nearly zonal flow aloft remains Sat night into Sun. Another S/W
aloft expected to arrive during Sun...which again combined w/
daytime heating likely results in SCT convective development.
Lows Sat night ranging through the 60s. Partly sunny Sun w/
highs mainly in the l-m80s (70s at the beaches).

Will highlight possible strong to severe tstms in HWO for the
weekend.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
The somewhat unsettled weather will continue into Monday with the
baroclinic zone nearby and a strong upper jet just north of the
area. Expect additional showers and thunderstorms once again on
Monday in the cyclonic flow. It will be a warm day with highs in the
mid-upper 80s.  The front will stall out over North Carolina on
Tuesday and may allow for additional showers and storms Tuesday
across NE NC and south VA. High pressure builds across the
region for Tue Night-Thursday with dry and seasonable conditions
expected.

&&

.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
A line of showers and thunderstorms over the piedmont will move
eastward late this afternoon, affecting RIC btwn 20-22z. The storms
may affect PHF and ORF after 21z, and SBY around 22z. Some gusty
winds and small hail are possible with these storms, as well as
brief IFR conditions. Otherwise, VFR conditions should dominate as
the associated cold front passes through this evening allowing for
drying conditions under westerly flow.

Friday should be dry with VFR conditions, then sct showers and
storms return for Saturday into early next week as the pattern
remains somewhat unsettled.

&&

.MARINE...
Latest sfc analysis shows a broad area of low pres across the
Mid Atlc - OH Valley with its main cold front already pushing
offshore. SW flow continues tonight behind the front, and still
looks to be enough of a gradient for 15-20 kt winds over most
waters...so headlines over the Bay/Sound/Lwr James extend
through at least Fri morning. The SCA over the ocean is for seas
up to 5 ft out 20 nm. Weak high pres then builds in for late
Fri/Fri night leading to improving marine conditions. Sub-sca
conditions expected to continue into the weekend.

&&

.TIDES/COASTAL FLOODING...
The continued onshore flow combined with high astro tides will
result in elevated water levels through Friday. The SSE winds
continue to pile up the water across the middle Ches Bay so
based off the latest data, went ahead and extended the coastal
flood advisory for the bay side of the lower Md eastern shore
for the next high tide cycle. Also issued coastal flood statements
for the Va northern neck and Atlantic coastal waters from OXB-Cape
Charles for levels approaching minor flood levels. See CFWAKQ
for more details.

&&

.AKQ WATCHES/WARNINGS/ADVISORIES...
MD...Coastal Flood Advisory until 4 PM EDT this afternoon for
     MDZ021>023.
NC...Small Craft Advisory until 10 AM EDT Friday for NCZ102.
VA...Small Craft Advisory until 4 PM EDT Friday for VAZ525.
MARINE...Small Craft Advisory until 10 AM EDT Friday for ANZ638-656-658.
     Small Craft Advisory until 4 PM EDT Friday for ANZ630>632-634-
     650-652-654.
     Small Craft Advisory until 1 PM EDT Friday for ANZ633.

&&

SYNOPSIS...ALB/JDM
NEAR TERM...ALB
SHORT TERM...ALB/JDM
LONG TERM...MRD
AVIATION...JDM
MARINE...MAS
TIDES/COASTAL FLOODING...
Hazardous weather outlook, May 25, 2:45 PM EDT, 2 hours 13 minutes before
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In the hours before

Special weather statement, May 25, 4:12 PM EDT, 46 minutes before
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Special weather statement, May 25, 4:17 PM EDT, 41 minutes before
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Special weather statement, May 25, 4:30 PM EDT, 28 minutes before
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Special weather statement, May 25, 4:31 PM EDT, 27 minutes before
Special Weather Statement
National Weather Service Wakefield VA
431 PM EDT THU MAY 25 2017

VAZ082-083-089-090-523-252115-
Charles City-New Kent-Surry-York-James City-
431 PM EDT THU MAY 25 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CHARLES CITY...
NORTHWESTERN YORK...SOUTHEASTERN NEW KENT...NORTHWESTERN SURRY...AND
JAMES CITY COUNTIES AND THE CITY OF WILLIAMSBURG...

At 430 PM EDT, a strong thunderstorm was located near Cabin Point, or
near Claremont, moving northeast at 35 mph.

Wind gusts to around 40 mph and pea size hail are possible with this
storm.
In addition...Rainfall amounts of up to 1 inch are possible with
this storm.

This storm will be near...
  Claremont around 440 PM EDT.
  Rustic around 450 PM EDT.
  College Of William And Mary around 500 PM EDT.
  Williamsburg, Norge, Toano and Queens Lake around 505 PM EDT.

Other locations impacted by this storm include Holly Forks, Carsley,
York River State Park, Croaker, Barlows Corner, Camp Peary, Spring
Grove, Centerville, Ewell and Christensons Corner.

LAT...LON 3732 7661 3708 7698 3713 7710 3719 7705
      3719 7704 3720 7704 3720 7703 3721 7701
      3722 7702 3723 7702 3725 7697 3727 7699
      3751 7680
TIME...MOT...LOC 2030Z 223DEG 29KT 3715 7700

BROWN
Special weather statement, May 25, 4:38 PM EDT, 20 minutes before
Special Weather Statement
National Weather Service Wakefield VA
438 PM EDT THU MAY 25 2017

VAZ065-066-252130-
Mecklenburg-Lunenburg-
438 PM EDT THU MAY 25 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MECKLENBURG AND
SOUTHEASTERN LUNENBURG COUNTIES...

At 438 PM EDT, a strong thunderstorm was located 8 miles southeast of
Kells Corner, or 9 miles east of Chase City, moving east at 20 mph.

Wind gusts in excess of 40 mph and half inch hail are possible with
this storm.

This storm will be near...
  South Hill around 510 PM EDT.

Other locations impacted by this storm include Bacons Fork, Lafoon
Corner, Gary, Wilburn, Gills Corner, North View, Forksville and
Wightman.

If you see lightning or hear thunder...you are at risk. Take shelter
indoors immediately. If you cannot find shelter in a building a
vehicle provides safety from lightning.

Strong wind gusts are possible with this storm. These wind gusts are
capable of knocking down tree limbs...small or weakened trees...and
blowing around trash cans...potted plants...lawn furniture and other
light outdoor objects.

LAT...LON 3696 7803 3686 7802 3673 7803 3674 7834
      3685 7837
TIME...MOT...LOC 2038Z 258DEG 16KT 3680 7828

ALB
Special weather statement, May 25, 4:44 PM EDT, 14 minutes before
Special Weather Statement
National Weather Service Wakefield VA
444 PM EDT THU MAY 25 2017

VAZ065-252130-
Mecklenburg-
444 PM EDT THU MAY 25 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN MECKLENBURG COUNTY...

At 444 PM EDT, a strong thunderstorm was located near Clarksville, or
9 miles east of Virgilina, moving east at 25 mph.

Wind gusts up to 40 mph and half inch hail are possible with this
storm.
In addition...Rainfall amounts of up to 1 inch are possible with
this storm.

Locations impacted include...
Clarksville, Boydton, Nelson, Beechwood, Finchley, John H Kerr Dam,
Richardson, Buffalo Junction, Keats, Eppes Fork, Baskerville, Palmer
Springs and John H Kerr Reservoir.

LAT...LON 3658 7873 3658 7872 3661 7871 3672 7818
      3654 7817 3654 7873 3656 7874
TIME...MOT...LOC 2044Z 268DEG 21KT 3658 7861

BROWN

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:29 PM EDTSpecial Weather StatementAKQGreensville, City of Emporia46 min
May 25, 5:03 AM EDTCoastal Flood StatementAKQAccomack, Lancaster, Northampton, Northumberland, Westmoreland10 hr
May 25, 9:50 AM EDTAreal Flood AdvisoryAKQMecklenburg9 hr
May 25, 10:20 AM EDTRiver Flood WarningAKQBrunswick45 hr
May 25, 11:56 AM EDTSpecial Weather StatementAKQCity of Virginia Beach49 min
May 25, 12:27 PM EDTSpecial Weather StatementAKQCumberland, Prince Edward63 min
May 25, 12:51 PM EDTRiver Flood WarningAKQHenrico, City of Richmond64 hr
May 25, 12:51 PM EDTRiver Flood WarningAKQChesterfield, Henrico, City of Richmond64 hr
May 25, 12:51 PM EDTRiver Flood WarningAKQBuckingham, Fluvanna43 hr
May 25, 1:48 PM EDTSpecial Weather StatementAKQFluvanna, Goochland42 min
May 25, 2:07 PM EDTSpecial Weather StatementAKQBrunswick, Chesterfield, Lunenburg, Mecklenburg, Nottoway, City of Richmond53 min
May 25, 2:19 PM EDTSpecial Weather StatementAKQAmelia, Brunswick, Chesterfield, Lunenburg, Nottoway56 min
May 25, 2:24 PM EDTSpecial Weather StatementAKQGoochland, Hanover36 min
May 25, 2:31 PM EDTSpecial Weather StatementAKQPowhatan44 min
May 25, 3:11 PM EDTSpecial Weather StatementAKQHanover49 min
May 25, 3:19 PM EDTSpecial Weather StatementAKQCity of Virginia Beach41 min
May 25, 3:22 PM EDTSpecial Weather StatementAKQChesterfield, Hanover, City of Richmond38 min
May 25, 3:35 PM EDTSpecial Weather StatementAKQCaroline40 min
May 25, 3:41 PM EDTSpecial Weather StatementAKQJames City, Surry, City of Williamsburg49 min
May 25, 3:43 PM EDTSpecial Weather StatementAKQEssex47 min
May 25, 3:45 PM EDTSpecial Weather StatementAKQGreensville, City of Emporia45 min
May 25, 3:58 PM EDTSpecial Weather StatementAKQMecklenburg47 min
May 25, 4:11 PM EDTSpecial Weather StatementAKQLouisa49 min
May 25, 4:12 PM EDTSpecial Weather StatementAKQGloucester48 min
May 25, 4:17 PM EDTSpecial Weather StatementAKQIsle of Wight43 min
May 25, 4:30 PM EDTSpecial Weather StatementAKQLancaster, Middlesex, Northumberland45 min
May 25, 4:31 PM EDTSpecial Weather StatementAKQJames City, City of Williamsburg44 min
May 25, 4:38 PM EDTSpecial Weather StatementAKQLunenburg52 min
May 25, 4:44 PM EDTSpecial Weather StatementAKQMecklenburg46 min
May 25, 4:52 PM EDTSpecial Marine WarningAKQ38 min
May 25, 4:58 PM EDTCoastal Flood AdvisoryAKQAccomack, Lancaster, Northampton, Northumberland, Westmoreland11 hr
May 25, 5:02 PM EDTSpecial Weather StatementAKQIsle of Wight, York, City of Chesapeake, City of Hampton, City of Newport News, City of Norfolk and 3 more43 min
May 25, 5:09 PM EDTSpecial Marine WarningAKQ66 min
May 25, 5:29 PM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Hampton, City of Norfolk, City of Portsmouth, City of Virginia Beach46 min
May 25, 5:30 PM EDTSpecial Marine WarningAKQ60 min
May 25, 5:32 PM EDTSpecial Weather StatementAKQNottoway58 min
May 25, 5:38 PM EDTSpecial Marine WarningAKQ82 min
May 25, 5:38 PM EDTSpecial Marine WarningAKQ37 min
May 25, 5:54 PM EDTSpecial Marine WarningAKQ66 min
May 25, 6:01 PM EDTSpecial Weather StatementAKQCity of Virginia Beach44 min
May 25, 6:17 PM EDTSpecial Weather StatementAKQAccomack43 min
May 25, 6:25 PM EDTSpecial Marine WarningAKQ95 min
May 24, 8:09 PM EDTSpecial Weather StatementAKQBertie, Gates, Hertford66 min
May 25, 5:54 PM EDTSpecial Weather StatementAKQNorthampton51 min
May 25, 5:55 PM EDTSpecial Weather StatementAKQPasquotank65 min
May 25, 7:11 PM EDTSpecial Weather StatementAKQHertford49 min
May 25, 4:58 PM EDTCoastal Flood WarningAKQDorchester, Somerset, Wicomico13 hr
May 25, 5:38 PM EDTSevere Thunderstorm WarningAKQDorchester, Somerset, Wicomico37 min
May 25, 6:11 PM EDTSevere Thunderstorm WarningAKQSomerset, Wicomico, Worcester49 min

Nearby

Coastal Flood Statements in Virginia, 2017Coastal Flood Statements in North Carolina, 2017Every coastal flood statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.