Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 31, NWS Wakefield, VA

July 8, 20216 counties in Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 8, 2021, 8:49 PM EDT for 6 counties in Virginia. It was in force for 5 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
Jul 8, 2021, 8:49 PM EDT (00:49 UTC)
Expired
Jul 9, 2021, 1:44 AM EDT
In force
5 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

Counties Charles City County, VA, Henrico County, VA, James City County, VA, King William County, VA, New Kent County, VA, Prince George County, VA

The radar

The Norfolk radar (KAKQ), 40 km from the middle of the area, began a volume at 00:50 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
Jul 8, 9:25 PM EDTFLASH FLOOD3 Wnw Adkins Store, VACATTAIL RD AT BARNETTS RD CLOSED DUE TO HIGH WATER.

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 00:00Z, 0.8 hours before the alert went out and 162 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 00:00Z on 2021-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 440 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, Wallops Is Stn, VA at 00:00Z on 2021-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.19395878Sfc1 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
440 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
675 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
336 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted.

694 
WGUS51 KAKQ 090049
FFWAKQ
VAC036-087-095-101-127-149-090700-
/O.NEW.KAKQ.FF.W.0031.210709T0049Z-210709T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  East Central Henrico County in central Virginia...
  Charles City County in east central Virginia...
  Southeastern King William County in east central Virginia...
  New Kent County in east central Virginia...
  Northeastern Prince George County in south central Virginia...
  James City County in southeastern Virginia...

* Until 300 AM EDT Friday.

* At 849 PM EDT, Doppler radar and automated rain gauges indicated 
  heavy rain falling across the warned area. Between 2 and 3 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...
  New Kent, Charles City, Roxbury, Talleysville, Adkins Store, 
  Ruthville, Providence Forge, Holdcroft, Rustic, Garysville, 
  Jordans Point, Burrowsville, Roaches Corner, Sandybottom, 
  Mountcastle, New Hope, Colonial Downs, Barnetts, New Kent Airport 
  and Browns Corner.

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 3731 7724 3741 7721 3743 7728 3750 7717
      3755 7723 3767 7694 3763 7688 3736 7688
      3724 7697 3725 7697 3723 7701 3722 7702
      3721 7701 3718 7707 3714 7713 3709 7721

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

JM
1 follow-up statement
308 
WGUS71 KAKQ 090544
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
144 AM EDT Fri Jul 9 2021

VAC036-087-095-101-127-149-090554-
/O.CAN.KAKQ.FF.W.0031.000000T0000Z-210709T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Charles City VA-Henrico VA-James City VA-King William VA-New Kent VA-
Prince George VA-
144 AM EDT Fri Jul 9 2021

...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL HENRICO, 
CHARLES CITY, SOUTHEASTERN KING WILLIAM, NEW KENT, NORTHEASTERN 
PRINCE GEORGE AND JAMES CITY COUNTIES...

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

LAT...LON 3731 7724 3741 7721 3743 7728 3750 7717
      3755 7723 3767 7694 3763 7688 3736 7688
      3724 7697 3725 7697 3723 7701 3722 7702
      3721 7701 3718 7707 3714 7713 3709 7721

$$

05

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 8:07 PM EDTTornado WarningAKQCity of Chesapeake, City of Norfolk, City of Virginia Beach23 min
Jul 8, 8:25 PM EDTTornado WarningAKQCity of Virginia Beach35 min
Jul 8, 8:27 PM EDTSpecial Marine WarningAKQ33 min
Jul 8, 8:37 PM EDTSpecial Marine WarningAKQ83 min
Jul 8, 8:37 PM EDTSpecial Weather StatementAKQCharles City, James City, Prince George, Southampton, Surry, Sussex and 1 more38 min
Jul 8, 9:00 PM EDTSpecial Marine WarningAKQ45 min
Jul 8, 9:42 PM EDTAreal Flood AdvisoryAKQEssex, Gloucester, King and Queen, Lancaster, Mathews, Middlesex and 3 more4 hr
Jul 8, 10:29 PM EDTSpecial Marine WarningAKQ76 min
Jul 8, 11:43 PM EDTSpecial Marine WarningAKQ77 min
Jul 9, 1:14 AM EDTRiver Flood WarningAKQBrunswick34 hr
Jul 9, 2:11 AM EDTGale WarningAKQ5 hr
Jul 9, 4:12 AM EDTSmall Craft AdvisoryAKQ11 hr
Jul 9, 1:38 PM EDTRiver Flood WarningAKQCharles City, New Kent17 hr
Jul 9, 1:50 PM EDTSpecial Weather StatementAKQMecklenburg40 min
Jul 9, 2:31 PM EDTSpecial Weather StatementAKQBrunswick44 min
Jul 9, 2:46 PM EDTSpecial Weather StatementAKQDinwiddie44 min
Jul 9, 3:12 PM EDTSpecial Weather StatementAKQDinwiddie, Sussex48 min
Jul 9, 3:42 PM EDTSpecial Weather StatementAKQGreensville, Southampton, City of Emporia48 min
Jul 9, 3:48 PM EDTSpecial Weather StatementAKQSouthampton42 min
Jul 9, 4:09 PM EDTSpecial Weather StatementAKQCity of Newport News51 min
Jul 9, 4:10 PM EDTSpecial Marine WarningAKQ25 min
Jul 9, 4:33 PM EDTSpecial Weather StatementAKQIsle of Wight, City of Franklin, City of Portsmouth, City of Suffolk57 min
Jul 9, 5:01 PM EDTSpecial Weather StatementAKQCaroline44 min
Jul 9, 5:29 PM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Portsmouth61 min
Jul 9, 6:19 PM EDTSpecial Marine WarningAKQ56 min
Jul 9, 6:22 PM EDTSpecial Weather StatementAKQCity of Virginia Beach53 min
Jul 9, 6:23 PM EDTSpecial Marine WarningAKQ67 min

Nearby

Flash Flood Warnings in Virginia, 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.