Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 55, NWS Wakefield, VA

August 22, 2021Lancaster County, Northumberland County, Richmond County, Virginia

NWS Wakefield, VA issued this flash flood warning at Aug 22, 2021, 3:14 PM EDT for Lancaster County, Northumberland County, Richmond County, Virginia. It was in force for 3 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: Aug 22, 2021, 3:14 PM EDT (19:14 UTC)
Expired: Aug 22, 2021, 6:15 PM EDT
In force: 3 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties Lancaster County, VA, Northumberland County, VA, Richmond County, VA

The radar

The Norfolk radar (KAKQ), 107 km from the middle of the area, began a volume at 19:15 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, 7.2 hours before the alert went out and 88 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: 1445 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 876 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -34 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

793 
WGUS51 KAKQ 221914
FFWAKQ
VAC103-133-159-222215-
/O.NEW.KAKQ.FF.W.0055.210822T1914Z-210822T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
314 PM EDT Sun Aug 22 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Southeastern Richmond County in east central Virginia...
  Lancaster County in eastern Virginia...
  Northumberland County in eastern Virginia...

* Until 615 PM EDT.

* At 314 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. The expected rainfall rate is 1 to 2 inches in 1 
  hour. 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 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...
  Fair Port, Robley, Wicomico Church, Heathsville, Browns Store, 
  Howland, Regina, Beanes Corner, Avalon, Lara, Rehoboth Church, 
  Dodlyt, Moon Corner, Lilian, Reedville, Fleeton, Mulch and Downing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life.

&&

LAT...LON 3782 7661 3783 7666 3785 7666 3792 7657
      3792 7649 3790 7638 3784 7622 3782 7623
      3780 7625 3779 7625 3777 7625 3777 7626
      3776 7628 3775 7628 3774 7628 3776 7636
      3781 7650

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

Zimmerman

1 follow-up statement

544 
WGUS71 KAKQ 222210
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
610 PM EDT Sun Aug 22 2021

VAC103-133-159-222220-
/O.EXP.KAKQ.FF.W.0055.000000T0000Z-210822T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lancaster VA-Northumberland VA-Richmond VA-
610 PM EDT Sun Aug 22 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 615 PM EDT THIS EVENING FOR 
SOUTHEASTERN RICHMOND, LANCASTER AND NORTHUMBERLAND COUNTIES...

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

LAT...LON 3782 7661 3783 7666 3785 7666 3792 7657
      3792 7649 3790 7638 3784 7622 3782 7623
      3780 7625 3779 7625 3777 7625 3777 7626
      3776 7628 3775 7628 3774 7628 3776 7636
      3781 7650

$$

Zimmerman

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 1:27 PM EDT	Special Marine Warning	AKQ		63 min
Aug 22, 1:34 PM EDT	Special Marine Warning	AKQ		56 min
Aug 22, 1:46 PM EDT	Special Weather Statement	AKQ	Mathews	44 min
Aug 22, 2:10 PM EDT	Special Weather Statement	AKQ	Charles City, New Kent	35 min
Aug 22, 2:13 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	47 min
Aug 22, 2:22 PM EDT	Severe Thunderstorm Warning	AKQ	James City, Surry, City of Newport News, City of Williamsburg	38 min
Aug 22, 2:23 PM EDT	Special Marine Warning	AKQ		52 min
Aug 22, 2:29 PM EDT	Special Weather Statement	AKQ	Gloucester, Mathews	46 min
Aug 22, 2:35 PM EDT	Special Weather Statement	AKQ	Middlesex	40 min
Aug 22, 2:38 PM EDT	Special Marine Warning	AKQ		67 min
Aug 22, 2:41 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg, Nottoway	49 min
Aug 22, 2:47 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, Mathews, York	43 min
Aug 22, 2:50 PM EDT	Special Weather Statement	AKQ	Lancaster, Northumberland	40 min
Aug 22, 2:53 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Northumberland, Richmond	52 min
Aug 22, 3:02 PM EDT	Special Weather Statement	AKQ	James City	28 min
Aug 22, 3:06 PM EDT	Special Marine Warning	AKQ		54 min
Aug 22, 3:09 PM EDT	Areal Flood Advisory	AKQ	Gloucester, Mathews	3 hr
Aug 22, 3:14 PM EDT	Special Weather Statement	AKQ	City of Williamsburg	31 min
Aug 22, 3:16 PM EDT	Special Weather Statement	AKQ	Middlesex	29 min
Aug 22, 3:25 PM EDT	Flash Flood Warning	AKQ	Mathews	3 hr
Aug 22, 3:29 PM EDT	Special Weather Statement	AKQ	Mecklenburg	46 min
Aug 22, 3:31 PM EDT	Special Weather Statement	AKQ	Accomack	29 min
Aug 22, 3:36 PM EDT	Special Marine Warning	AKQ		54 min
Aug 22, 3:38 PM EDT	Special Weather Statement	AKQ	City of Norfolk, City of Portsmouth	37 min
Aug 22, 3:41 PM EDT	Special Weather Statement	AKQ	Dinwiddie	34 min
Aug 22, 3:49 PM EDT	Areal Flood Advisory	AKQ	Essex, King and Queen, Middlesex	3 hr
Aug 22, 3:51 PM EDT	Special Weather Statement	AKQ	King and Queen	39 min
Aug 22, 3:54 PM EDT	Special Marine Warning	AKQ		66 min
Aug 22, 4:01 PM EDT	Areal Flood Advisory	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	3 hr
Aug 22, 4:04 PM EDT	Special Weather Statement	AKQ	Dinwiddie	26 min
Aug 22, 4:07 PM EDT	Flash Flood Warning	AKQ	Essex, Gloucester, King and Queen, Middlesex	3 hr
Aug 22, 4:11 PM EDT	Special Weather Statement	AKQ	Accomack	34 min
Aug 22, 4:13 PM EDT	Severe Thunderstorm Warning	AKQ	City of Chesapeake, City of Virginia Beach	47 min
Aug 22, 4:14 PM EDT	Special Weather Statement	AKQ	Surry	46 min
Aug 22, 4:14 PM EDT	Special Weather Statement	AKQ	Prince George	31 min
Aug 22, 4:19 PM EDT	Special Marine Warning	AKQ		32 min
Aug 22, 4:21 PM EDT	Areal Flood Advisory	AKQ	Accomack	2 hr
Aug 22, 4:31 PM EDT	Severe Thunderstorm Warning	AKQ	Chesterfield, Dinwiddie, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg	44 min
Aug 22, 4:35 PM EDT	Special Marine Warning	AKQ		55 min
Aug 22, 4:39 PM EDT	Flash Flood Warning	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	3 hr
Aug 22, 4:47 PM EDT	Special Weather Statement	AKQ	Essex	28 min
Aug 22, 5:04 PM EDT	Special Weather Statement	AKQ	City of Chesapeake	41 min
Aug 22, 5:05 PM EDT	Special Weather Statement	AKQ	Sussex	40 min
Aug 22, 5:06 PM EDT	Special Marine Warning	AKQ		39 min
Aug 22, 5:09 PM EDT	Areal Flood Advisory	AKQ	Dinwiddie, Prince George, Surry, Sussex, City of Colonial Heights, City of Hopewell and 1 more	3 hr
Aug 22, 5:12 PM EDT	Severe Thunderstorm Warning	AKQ	Southampton, Sussex	48 min
Aug 22, 5:20 PM EDT	Special Weather Statement	AKQ	City of Suffolk	40 min
Aug 22, 5:46 PM EDT	Special Weather Statement	AKQ	Isle of Wight	29 min

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.