Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 9, NWS Wakefield, VA

June 10, 2021City of Chesapeake, City of Norfolk, City of Virginia Beach, Virginia

NWS Wakefield, VA issued this flash flood warning at Jun 10, 2021, 5:07 PM EDT for City of Chesapeake, City of Norfolk, City of Virginia Beach, Virginia. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 10, 2021, 5:07 PM EDT (21:07 UTC)
Expired: Jun 10, 2021, 6:01 PM EDT
In force: 54 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties City of Chesapeake, VA, City of Norfolk, VA, City of Virginia Beach, VA

The radar

The Norfolk radar (KAKQ), 76 km from the middle of the area, began a volume at 21:09 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.1 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 408 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 745 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

085 
WGUS51 KAKQ 102107
FFWAKQ
VAC550-710-810-102300-
/O.NEW.KAKQ.FF.W.0009.210610T2107Z-210610T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
507 PM EDT Thu Jun 10 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  The Northeastern City of Chesapeake in southeastern Virginia...
  The Southeastern City of Norfolk in southeastern Virginia...
  The West Central City of Virginia Beach in southeastern Virginia...

* Until 700 PM EDT.

* At 507 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 2 inches of rain have 
  fallen. Additional rainfall amounts up to 1 inch 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, Kempsville, Regent University, Norfolk, 
  Chesapeake, Princess Anne, Gallups Corner, Greenbrier, Princess 
  Anne Plaza and Mount Pleasant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3688 7627 3687 7622 3685 7617 3685 7613
      3684 7605 3672 7605 3671 7613 3677 7622
      3682 7626

FLASH FLOOD...RADAR INDICATED

$$

Poche

1 follow-up statement

284 
WGUS71 KAKQ 102201
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
601 PM EDT Thu Jun 10 2021

VAC550-710-810-102211-
/O.CAN.KAKQ.FF.W.0009.000000T0000Z-210610T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
City of Chesapeake VA-City of Norfolk VA-City of Virginia Beach VA-
601 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING IS CANCELLED FOR THE NORTHEASTERN CITY OF 
CHESAPEAKE, THE SOUTHEASTERN CITY OF NORFOLK AND THE WEST CENTRAL 
CITY OF VIRGINIA BEACH...

The heavy rain has ended though periods of light to moderate rain 
will continue. Significant flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3688 7627 3687 7622 3685 7617 3685 7613
      3684 7605 3672 7605 3671 7613 3677 7622
      3682 7626

$$

JO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 10:14 AM EDT	Flash Flood Watch	AKQ	Amelia, Cumberland, Nottoway, Powhatan, Prince Edward	10 hr
Jun 10, 2:39 PM EDT	Flash Flood Watch	AKQ	Amelia, Brunswick, Caroline, Charles City, Chesterfield, Cumberland and 41 more	33 hr
Jun 10, 3:02 PM EDT	Special Weather Statement	AKQ	Prince Edward	43 min
Jun 10, 3:07 PM EDT	Areal Flood Advisory	AKQ	Cumberland, Prince Edward	113 min
Jun 10, 3:33 PM EDT	Special Weather Statement	AKQ	Dinwiddie	27 min
Jun 10, 4:39 PM EDT	Special Weather Statement	AKQ	Accomack	36 min
Jun 10, 4:39 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	51 min
Jun 10, 4:45 PM EDT	Special Weather Statement	AKQ	City of Colonial Heights, City of Hopewell, City of Petersburg	30 min
Jun 10, 4:51 PM EDT	Areal Flood Advisory	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	3 hr
Jun 10, 5:17 PM EDT	Special Weather Statement	AKQ	Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg	28 min
Jun 10, 5:32 PM EDT	Severe Thunderstorm Warning	AKQ	City of Chesapeake, City of Virginia Beach	43 min
Jun 10, 5:39 PM EDT	Special Weather Statement	AKQ	Charles City	51 min
Jun 10, 5:48 PM EDT	Special Weather Statement	AKQ	Isle of Wight, Surry	57 min
Jun 10, 6:15 PM EDT	Special Weather Statement	AKQ	City of Chesapeake	45 min
Jun 10, 6:17 PM EDT	Areal Flood Advisory	AKQ	Isle of Wight, Surry	118 min
Jun 10, 6:20 PM EDT	Special Marine Warning	AKQ		55 min
Jun 10, 6:37 PM EDT	Flash Flood Warning	AKQ	Surry	113 min
Jun 10, 6:41 PM EDT	Areal Flood Advisory	AKQ	Isle of Wight, City of Chesapeake, City of Portsmouth, City of Suffolk	109 min
Jun 10, 7:07 PM EDT	Areal Flood Advisory	AKQ	King William	113 min
Jun 10, 7:12 PM EDT	Areal Flood Advisory	AKQ	Essex, Richmond, Westmoreland	3 hr
Jun 10, 7:35 PM EDT	Areal Flood Advisory	AKQ	Prince George, Surry, Sussex	3 hr

Nearby

Flash Flood Warnings in Virginia, 2021 Every 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.