Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 30, NWS Wakefield, VA

July 8, 20218 counties in Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 8, 2021, 7:49 PM EDT for 8 counties in Virginia. It was in force for 6 hr. 8 reports 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, 7:49 PM EDT (23:49 UTC)
Expired
Jul 9, 2021, 1:42 AM EDT
In force
6 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Charles City County, VA, Chesterfield County, VA, City of Colonial Heights, VA, City of Hopewell, VA, City of Petersburg, VA, Dinwiddie County, VA, Henrico County, VA, Prince George County, VA

The radar

The Norfolk radar (KAKQ), 57 km from the middle of the area, began a volume at 23:50 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, 8:10 PM EDTFLASH FLOOD1 E Chester, VAREPORTS OF STRANDED VEHICLES IN HIGH WATER ON WEST HUNDRED RD AND JEFF DAVIS HIGHWAY. ONE WATER RESCUE PERFORMED.
Jul 8, 8:15 PM EDTFLASH FLOOD3 Wsw Chester, VACAR STRANDED DUE TO HIGH WATER.
Jul 8, 8:45 PM EDTFLASH FLOOD1 Sw New Bohemia, VAWATER OVER RIVES ROAD.
Jul 8, 8:45 PM EDTFLASH FLOOD1 W Petersburg National, VANEARLY 70% OF ALL ROADS IN PETERSBURG CLOSED DUE TO FLOODING AT THE HEIGHT OF THE EVENT.
Jul 8, 8:45 PM EDTFLASH FLOOD2 Ene Chester, VAOSBORNE RD AT OLD STAGE RD CLOSED DUE TO HIGH WATER.
Jul 8, 8:45 PM EDTFLASH FLOODBellwood, VACHESTER RD AT PERRYMONT RD CLOSED DUE TO HIGH WATER.
Jul 8, 9:00 PM EDTFLASH FLOOD3 N Colonial Heights, VAWATER COVERING INTERSECTION OF WOODS EDGE AND RUFFIN MILL ROAD.
Jul 8, 9:11 PM EDTFLASH FLOOD2 Se Matoaca, VABOYDTON PLANK RD AT FRANKLIN ST 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

Roanoke, VA (KRNK), launched 12:00Z, 11.8 hours before the alert went out and 168 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.

925 
WGUS51 KAKQ 082349
FFWAKQ
VAC036-041-053-087-149-570-670-730-090600-
/O.NEW.KAKQ.FF.W.0030.210708T2349Z-210709T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Southeastern Chesterfield County in central Virginia...
  Southeastern Henrico County in central Virginia...
  The City of Colonial Heights in central Virginia...
  West Central Charles City County in east central Virginia...
  Dinwiddie County in south central Virginia...
  Western Prince George County in south central Virginia...
  The City of Hopewell in south central Virginia...
  The City of Petersburg in south central Virginia...

* Until 200 AM EDT Friday.

* At 749 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 3 inches 
  are possible in the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Radar and automated gauges.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Richmond, Petersburg, Dinwiddie, Hopewell, Colonial Heights, 
  McKenney, Virginia State University, Fort Lee, Chester, 
  Disputanta, Prince George, Matoaca, Sutherland, Ettrick, Carson, 
  Chesterfield Court House, Dewitt, Bellwood, Bensley and 
  Chesterfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3704 7789 3721 7772 3724 7766 3726 7765
      3728 7766 3746 7748 3741 7721 3731 7725
      3709 7721 3699 7740 3697 7775 3700 7783
      3699 7789

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JM
1 follow-up statement
923 
WGUS71 KAKQ 090542
FFSAKQ

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

VAC036-041-053-087-149-570-670-730-090552-
/O.CAN.KAKQ.FF.W.0030.000000T0000Z-210709T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Charles City VA-Chesterfield VA-Dinwiddie VA-Henrico VA-Prince
George VA-City of Colonial Heights VA-City of Hopewell VA-City of
Petersburg VA-
142 AM EDT Fri Jul 9 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN CHESTERFIELD, 
SOUTHEASTERN HENRICO, WEST CENTRAL CHARLES CITY, DINWIDDIE AND 
WESTERN PRINCE GEORGE COUNTIES AND THE CITY OF COLONIAL HEIGHTS, THE 
CITY OF HOPEWELL AND THE CITY OF PETERSBURG...

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

LAT...LON 3704 7789 3721 7772 3724 7766 3726 7765
      3728 7766 3746 7748 3741 7721 3731 7725
      3709 7721 3699 7740 3697 7775 3700 7783
      3699 7789

$$

05

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, 5:20 PM EDTFlash Flood WarningAKQBrunswick4 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

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.