Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Wakefield, VA

June 4, 2021Isle of Wight County, Virginia

NWS Wakefield, VA issued this flash flood warning at Jun 4, 2021, 7:16 PM EDT for Isle of Wight County, Virginia. It was in force for 3 hr. 2 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
Jun 4, 2021, 7:16 PM EDT (23:16 UTC)
Expired
Jun 4, 2021, 10:15 PM EDT
In force
3 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

County Isle of Wight County, VA

The radar

The Norfolk radar (KAKQ), 31 km from the middle of the area, began a volume at 23:17 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
Jun 4, 7:20 PM EDTFLASH FLOODSmithfield, VAMULTIPLE REPORTING SITES SHOWING 2-2.5 INCHES OF RAIN IN 45 MINUTES.
Jun 4, 8:15 PM EDTFLASH FLOODIsle Of Wight, VASEVERAL REPORTS OF STANDING WATER ON ROADWAYS IN CENTRAL ISLE OF WIGHT COUNTY.

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, 11.3 hours before the alert went out and 158 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 2021-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 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 12:00Z on 2021-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
396 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

826 
WGUS51 KAKQ 042316
FFWAKQ
VAC093-050215-
/O.NEW.KAKQ.FF.W.0005.210604T2316Z-210605T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
716 PM EDT Fri Jun 4 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Central Isle of Wight County in southeastern Virginia...

* Until 1015 PM EDT.

* At 716 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1.5 and 2.5 inches of rain have fallen in the past 30 to 40 
  minutes. The expected rainfall rate is 1 to 2 inches in 45 
  minutes. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  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...
  Smithfield, Suffolk, Isle Of Wight, Rescue, Zuni, Bethel Church, 
  Central Hill, Lawson, Comet, Benns Church, Whitley, Raynor and 
  Carrollton.

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 3697 7686 3703 7657 3698 7651 3693 7647
      3692 7649 3693 7649 3692 7650 3691 7653
      3692 7653 3691 7655 3689 7661 3686 7683
      3688 7683 3688 7682 3689 7683 3692 7683
      3696 7686

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 45 MINUTES

$$

EI
2 follow-up statements
469 
WGUS71 KAKQ 050006
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
806 PM EDT Fri Jun 4 2021

VAC093-050215-
/O.CON.KAKQ.FF.W.0005.000000T0000Z-210605T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Isle of Wight VA-
806 PM EDT Fri Jun 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT THIS 
EVENING FOR CENTRAL ISLE OF WIGHT COUNTY...

At 806 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 2 
and 3 inches of rain have fallen. The expected rainfall rate is 0.5 
to 1 inch in 1 hour. Flash flooding is likely ongoing.

HAZARD...Flash flooding caused by thunderstorms.

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...
  Smithfield, Suffolk, Isle Of Wight, Rescue, Zuni, Bethel Church, 
  Central Hill, Lawson, Comet, Benns Church, Whitley, Raynor and 
  Carrollton.

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 3697 7686 3703 7657 3698 7651 3693 7647
      3692 7649 3693 7649 3692 7650 3691 7653
      3692 7653 3691 7655 3689 7661 3686 7683
      3688 7683 3688 7682 3689 7683 3692 7683
      3696 7686

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...0.5-1 INCH IN 1 HOUR

$$

EI
197 
WGUS71 KAKQ 050205
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
1005 PM EDT Fri Jun 4 2021

VAC093-050215-
/O.EXP.KAKQ.FF.W.0005.000000T0000Z-210605T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Isle of Wight VA-
1005 PM EDT Fri Jun 4 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT THIS EVENING FOR 
CENTRAL ISLE OF WIGHT COUNTY...

The heavy rain has ended. Please continue to heed remaining road 
closures.

LAT...LON 3697 7686 3703 7657 3698 7651 3693 7647
      3692 7649 3693 7649 3692 7650 3691 7653
      3692 7653 3691 7655 3689 7661 3686 7683
      3688 7683 3688 7682 3689 7683 3692 7683
      3696 7686

$$

EI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:26 PM EDTSmall Craft AdvisoryAKQ8 hr
Jun 4, 4:01 AM EDTSpecial Marine WarningAKQ59 min
Jun 4, 4:24 AM EDTSpecial Weather StatementAKQMecklenburg51 min
Jun 4, 5:04 AM EDTAreal Flood AdvisoryAKQCity of Virginia Beach116 min
Jun 4, 7:25 AM EDTSpecial Weather StatementAKQSouthampton50 min
Jun 4, 7:55 AM EDTSpecial Weather StatementAKQCity of Franklin, City of Suffolk35 min
Jun 4, 8:34 AM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk, City of Virginia Beach56 min
Jun 4, 9:27 AM EDTSpecial Weather StatementAKQCity of Chesapeake, City of Virginia Beach48 min
Jun 4, 10:26 AM EDTSpecial Marine WarningAKQ51 min
Jun 4, 1:15 PM EDTSpecial Weather StatementAKQLouisa45 min
Jun 4, 2:03 PM EDTSpecial Weather StatementAKQLouisa42 min
Jun 4, 2:44 PM EDTSpecial Weather StatementAKQHanover46 min
Jun 4, 2:57 PM EDTSpecial Weather StatementAKQCaroline, Westmoreland48 min
Jun 4, 3:18 PM EDTSevere Thunderstorm WarningAKQEssex, Northumberland, Richmond, Westmoreland42 min
Jun 4, 3:28 PM EDTSpecial Weather StatementAKQEssex, Hanover, King and Queen, King William, Powhatan, City of Richmond62 min
Jun 4, 3:59 PM EDTSpecial Marine WarningAKQ2 hr
Jun 4, 3:59 PM EDTSevere Thunderstorm WarningAKQEssex, Lancaster, Northumberland, Richmond, Westmoreland61 min
Jun 4, 4:01 PM EDTSpecial Weather StatementAKQCharles City, Chesterfield, Henrico, Middlesex, New Kent, City of Colonial Heights and 2 more44 min
Jun 4, 5:04 PM EDTSpecial Marine WarningAKQ86 min
Jun 4, 5:04 PM EDTSpecial Weather StatementAKQGloucester, James City, City of Williamsburg56 min
Jun 4, 5:34 PM EDTSpecial Marine WarningAKQ116 min
Jun 4, 5:49 PM EDTSpecial Weather StatementAKQGloucester, Mathews, Surry, York, City of Hampton, City of Newport News and 2 more56 min
Jun 4, 5:54 PM EDTSpecial Weather StatementAKQNorthampton66 min
Jun 4, 5:59 PM EDTSpecial Marine WarningAKQ2 hr
Jun 4, 5:59 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, James City, Surry, York, City of Hampton, City of Newport News and 1 more61 min
Jun 4, 6:29 PM EDTSpecial Marine WarningAKQ31 min
Jun 4, 6:34 PM EDTAreal Flood AdvisoryAKQYork, City of Hampton, City of Newport News, City of Poquoson2 hr
Jun 4, 6:43 PM EDTSpecial Weather StatementAKQCity of Norfolk, City of Portsmouth47 min
Jun 4, 6:45 PM EDTSpecial Weather StatementAKQIsle of Wight30 min
Jun 4, 6:48 PM EDTSpecial Weather StatementAKQNorthampton42 min
Jun 4, 7:02 PM EDTAreal Flood AdvisoryAKQIsle of Wight3 hr
Jun 4, 7:27 PM EDTSpecial Marine WarningAKQ93 min
Jun 4, 7:32 PM EDTSpecial Weather StatementAKQIsle of Wight43 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.