Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 28, NWS Wakefield, VA

July 8, 2021Brunswick County, Virginia; Northampton County, North Carolina

NWS Wakefield, VA issued this flash flood warning at Jul 8, 2021, 5:20 PM EDT for Brunswick County, Virginia; Northampton County, North Carolina. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 8, 2021, 5:20 PM EDT (21:20 UTC)
Expired
Jul 8, 2021, 9:01 PM EDT
In force
4 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

Counties Northampton County, NC, Brunswick County, VA

The radar

The Norfolk radar (KAKQ), 89 km from the middle of the area, began a volume at 21:23 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

Roanoke, VA (KRNK), launched 12:00Z, 9.3 hours before the alert went out and 164 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, Roanoke, VA at 12:00Z on 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 243 joules per kilogram.LCLLFCEL10008507005003002001001 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, Roanoke, VA at 12:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
243 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1038 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

907 
WGUS51 KAKQ 082120
FFWAKQ
NCC131-VAC025-090200-
/O.NEW.KAKQ.FF.W.0028.210708T2120Z-210709T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
520 PM EDT Thu Jul 8 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Northwestern Northampton County in northeastern North Carolina...
  Southern Brunswick County in south central Virginia...

* Until 1000 PM EDT.

* At 520 PM EDT, Doppler radar and automated rain gauges indicated 
  heavy rain falling across the warned area. Between 2 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 heavy rain.

  SOURCE...Radar and automated gauges.

  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...
  Lawrenceville, Brodnax, Brunswick, Gasburg, Ebony, White Plains, 
  Valentines, Bowens Corner, Triplet, Henrico, Ante, Meredithville 
  and Vultare.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3654 7804 3684 7802 3672 7767 3654 7778
      3648 7767 3649 7773 3648 7775 3648 7777
      3650 7782 3650 7787 3651 7789 3651 7790
      3654 7790

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

JM
1 follow-up statement
394 
WGUS71 KAKQ 090101
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
901 PM EDT Thu Jul 8 2021

NCC131-VAC025-090111-
/O.CAN.KAKQ.FF.W.0028.000000T0000Z-210709T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northampton NC-Brunswick VA-
901 PM EDT Thu Jul 8 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN NORTHAMPTON AND 
SOUTHERN BRUNSWICK COUNTIES...

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



LAT...LON 3654 7804 3684 7802 3672 7767 3654 7778
      3648 7767 3649 7773 3648 7775 3648 7777
      3650 7782 3650 7787 3651 7789 3651 7790
      3654 7790

$$

JM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 11:21 PM EDTTropical Storm WarningAKQAccomack, Gloucester, Lancaster, Mathews, Middlesex, Northampton and 8 more27 hr
Jul 8, 6:31 AM EDTCoastal Flood AdvisoryAKQAccomack, Northampton, City of Virginia Beach27 hr
Jul 8, 3:55 PM EDTTornado WarningAKQSouthampton35 min
Jul 8, 4:00 PM EDTTornado WarningAKQIsle of Wight, Southampton, City of Franklin, City of Suffolk30 min
Jul 8, 4:37 PM EDTAreal Flood AdvisoryAKQBrunswick, Lunenburg, Mecklenburg3 hr
Jul 8, 5:35 PM EDTBeach Hazards StatementAKQAccomack, Northampton26 hr
Jul 8, 5:35 PM EDTAreal Flood AdvisoryAKQBrunswick, Dinwiddie, Lunenburg, Nottoway3 hr
Jul 8, 5:39 PM EDTTornado WarningAKQCity of Chesapeake, City of Suffolk36 min
Jul 8, 5:45 PM EDTFlash Flood WarningAKQLunenburg3 hr
Jul 8, 6:17 PM EDTTornado WarningAKQIsle of Wight, Surry, City of Newport News, City of Suffolk14 min
Jul 8, 6:21 PM EDTSpecial Marine WarningAKQ11 min
Jul 8, 6:23 PM EDTAreal Flood AdvisoryAKQAmelia, Dinwiddie, Nottoway, Prince Edward3 hr
Jul 8, 6:43 PM EDTTornado WarningAKQCity of Suffolk32 min
Jul 8, 6:48 PM EDTAreal Flood AdvisoryAKQAmelia, Chesterfield, Dinwiddie, Greensville, Prince George, Surry and 5 more4 hr
Jul 8, 7:06 PM EDTTornado WarningAKQIsle of Wight, City of Suffolk24 min
Jul 8, 7:30 PM EDTRiver Flood WarningAKQLunenburg9 hr
Jul 8, 7:39 PM EDTSpecial Marine WarningAKQ36 min
Jul 8, 7:40 PM EDTAreal Flood AdvisoryAKQCharles City, Chesterfield, Goochland, Hanover, Henrico, James City and 8 more4 hr
Jul 8, 7:49 PM EDTFlash Flood Warning Considerable damage threatAKQCharles City, Chesterfield, Dinwiddie, Henrico, Prince George, City of Colonial Heights and 2 more6 hr
Jul 8, 9:58 AM EDTSpecial Weather StatementAKQChowan, Pasquotank, Perquimans47 min
Jul 8, 3:39 PM EDTTornado WarningAKQBertie, Gates, Hertford36 min
Jul 8, 7:09 PM EDTTornado WarningAKQCamden, Currituck, Pasquotank, Perquimans36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.