Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 1, NWS Wakefield, VA

April 9, 2021City of Chesapeake, City of Virginia Beach, Virginia; Currituck County, North Carolina

NWS Wakefield, VA issued this flash flood warning at Apr 9, 2021, 7:34 PM EDT for City of Chesapeake, City of Virginia Beach, Virginia; Currituck County, North Carolina. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 9, 2021, 7:34 PM EDT (23:34 UTC)
Expired
Apr 9, 2021, 11:45 PM EDT
In force
4 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

Counties Currituck County, NC, City of Chesapeake, VA, City of Virginia Beach, VA

The radar

The Norfolk radar (KAKQ), 80 km from the middle of the area, began a volume at 23:38 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.

What was reported inside it

TimeReportWhereRemark
Apr 9, 8:30 PM EDTFLASH FLOOD2 Sse Hickory, VABATTLEFIELD BOULEVARD IMPASSABLE DUE TO FLASH FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.6 hours before the alert went out and 165 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 2021-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2021-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

461 
WGUS51 KAKQ 092334
FFWAKQ
NCC053-VAC550-810-100245-
/O.NEW.KAKQ.FF.W.0001.210409T2334Z-210410T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
734 PM EDT Fri Apr 9 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Currituck County in northeastern North Carolina...
  The Southeastern City of Chesapeake in southeastern Virginia...
  The South Central City of Virginia Beach in southeastern Virginia...

* Until 1045 PM EDT.

* At 734 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2.5 and 4 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Virginia Beach, Chesapeake, Northwest, Hickory and Chesapeake 
  Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding. Do not stay in areas subject to flooding when 
water begins rising.

&&

LAT...LON 3665 7635 3668 7628 3665 7611 3663 7609
      3656 7610 3655 7612 3655 7617 3656 7642
      3658 7640

FLASH FLOOD...RADAR INDICATED

$$

RMM
2 follow-up statements
332 
WGUS51 KAKQ 100219
FFWAKQ
NCC053-VAC550-810-100415-
/O.EXT.KAKQ.FF.W.0001.000000T0000Z-210410T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
1019 PM EDT Fri Apr 9 2021

The National Weather Service in Wakefield has extended the

* Flash Flood Warning for...
  Currituck County in northeastern North Carolina...
  The Southeastern City of Chesapeake in southeastern Virginia...
  The South Central City of Virginia Beach in southeastern Virginia...

* Until 1215 AM EDT.

* At 1019 PM EDT, local law enforcement reported thunderstorms 
  producing heavy rain across the warned area. Between 2.5 and 4 
  inches of rain have fallen. Additional rainfall amounts up to 1 
  inch are possible in the warned area. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Virginia Beach, Chesapeake, Northwest, Hickory and Chesapeake 
  Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding. Do not stay in areas subject to flooding when 
water begins rising.

&&

LAT...LON 3665 7635 3668 7628 3665 7611 3663 7609
      3656 7610 3655 7612 3655 7617 3656 7642
      3658 7640

FLASH FLOOD...OBSERVED

$$

RMM
627 
WGUS71 KAKQ 100345
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
1145 PM EDT Fri Apr 9 2021

NCC053-VAC550-810-100355-
/O.CAN.KAKQ.FF.W.0001.000000T0000Z-210410T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Currituck NC-City of Chesapeake VA-City of Virginia Beach VA-
1145 PM EDT Fri Apr 9 2021

...FLASH FLOOD WARNING IS CANCELLED FOR CURRITUCK COUNTY AND THE 
SOUTHEASTERN CITY OF CHESAPEAKE AND THE SOUTH CENTRAL CITY OF 
VIRGINIA BEACH...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3665 7635 3668 7628 3665 7611 3663 7609
      3656 7610 3655 7612 3655 7617 3656 7642
      3658 7640

$$

Fisher

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 3:25 PM EDTSpecial Weather StatementAKQCity of Chesapeake50 min
Apr 9, 3:50 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake40 min
Apr 9, 4:08 PM EDTSpecial Weather StatementAKQCity of Newport News37 min
Apr 9, 4:10 PM EDTSpecial Weather StatementAKQMecklenburg35 min
Apr 9, 4:12 PM EDTSpecial Marine WarningAKQ48 min
Apr 9, 4:14 PM EDTSevere Thunderstorm WarningAKQMecklenburg46 min
Apr 9, 4:28 PM EDTSevere Thunderstorm WarningAKQCity of Suffolk28 min
Apr 9, 4:30 PM EDTSpecial Weather StatementAKQSurry30 min
Apr 9, 4:31 PM EDTSpecial Weather StatementAKQCity of Chesapeake44 min
Apr 9, 4:34 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake41 min
Apr 9, 4:45 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, Surry, City of Hampton, City of Newport News45 min
Apr 9, 4:55 PM EDTSpecial Marine WarningAKQ65 min
Apr 9, 4:57 PM EDTSevere Thunderstorm WarningAKQMecklenburg48 min
Apr 9, 5:07 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, City of Hampton, City of Newport News, City of Portsmouth, City of Suffolk53 min
Apr 9, 5:09 PM EDTSpecial Weather StatementAKQBrunswick36 min
Apr 9, 5:11 PM EDTSpecial Weather StatementAKQCity of Portsmouth49 min
Apr 9, 5:13 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake, City of Virginia Beach47 min
Apr 9, 5:13 PM EDTSevere Thunderstorm WarningAKQBrunswick, Mecklenburg47 min
Apr 9, 5:27 PM EDTSpecial Marine WarningAKQ78 min
Apr 9, 5:39 PM EDTAreal Flood AdvisoryAKQIsle of Wight, Surry, York, City of Hampton, City of Newport News3 hr
Apr 9, 5:39 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake, City of Portsmouth, City of Suffolk51 min
Apr 9, 5:57 PM EDTSevere Thunderstorm WarningAKQBrunswick, Mecklenburg48 min
Apr 9, 5:58 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake, City of Virginia Beach47 min
Apr 9, 6:22 PM EDTAreal Flood AdvisoryAKQCity of Chesapeake3 hr
Apr 9, 6:24 PM EDTSpecial Weather StatementAKQCity of Chesapeake36 min
Apr 9, 6:29 PM EDTSevere Thunderstorm WarningAKQBrunswick, Greensville46 min
Apr 9, 6:30 PM EDTSpecial Weather StatementAKQMecklenburg45 min
Apr 9, 6:30 PM EDTSevere Thunderstorm WarningAKQCity of Chesapeake45 min
Apr 9, 6:31 PM EDTSpecial Weather StatementAKQDinwiddie44 min
Apr 9, 6:39 PM EDTSevere Thunderstorm WarningAKQMecklenburg51 min
Apr 9, 6:40 PM EDTSpecial Weather StatementAKQCity of Richmond50 min
Apr 9, 6:42 PM EDTSpecial Weather StatementAKQCity of Chesapeake48 min
Apr 9, 7:07 PM EDTSpecial Weather StatementAKQCharles City, City of Colonial Heights, City of Hopewell53 min
Apr 9, 7:17 PM EDTSpecial Marine WarningAKQ88 min
Apr 9, 7:17 PM EDTSevere Thunderstorm WarningAKQLunenburg, Mecklenburg43 min
Apr 9, 7:19 PM EDTSpecial Weather StatementAKQDinwiddie, Prince George, City of Petersburg41 min
Apr 9, 7:20 PM EDTSpecial Weather StatementAKQLunenburg40 min
Apr 9, 7:23 PM EDTSevere Thunderstorm WarningAKQCharles City, Prince George52 min
Apr 9, 7:50 PM EDTSpecial Weather StatementAKQDinwiddie40 min
Apr 9, 4:50 PM EDTSpecial Weather StatementAKQChowan40 min
Apr 9, 5:06 PM EDTSevere Thunderstorm WarningAKQBertie, Chowan, Perquimans39 min
Apr 9, 5:42 PM EDTSevere Thunderstorm WarningAKQBertie, Chowan, Perquimans48 min
Apr 9, 6:24 PM EDTSevere Thunderstorm WarningAKQChowan, Perquimans51 min
Apr 9, 6:58 PM EDTSevere Thunderstorm WarningAKQChowan24 min
Apr 9, 7:03 PM EDTSevere Thunderstorm WarningAKQNorthampton42 min
Apr 9, 7:09 PM EDTSevere Thunderstorm WarningAKQCamden, Currituck51 min
Apr 9, 7:39 PM EDTSevere Thunderstorm WarningAKQBertie, Hertford, Northampton51 min

Nearby

Flash Flood Warnings in Virginia, 2021Flash Flood Warnings in North Carolina, 2021Every flash flood warning in 2021

Sources

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