Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 34, NWS Wakefield, VA

July 26, 2021Prince George County, City of Petersburg, Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 26, 2021, 4:27 PM EDT for Prince George County, City of Petersburg, Virginia. It was in force for 3 hr. 5 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 26, 2021, 4:27 PM EDT (20:27 UTC)
Expired: Jul 26, 2021, 7:30 PM EDT
In force: 3 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties City of Petersburg, VA, Prince George County, VA

The radar

The Norfolk radar (KAKQ), 31 km from the middle of the area, began a volume at 20:26 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

Time	Report	Where	Remark
Jul 26, 4:51 PM EDT	FLASH FLOOD	2 W Garysville, VA	BRIDGE IS UNDER WATER ALONG THE 4800 BLOCK OF HERITAGE ROAD.
Jul 26, 4:53 PM EDT	FLASH FLOOD	3 Se Jordan Point Count, VA	911 CALL CENTER REPORTS FLOODING ON MERCHANT HOPE ROAD.
Jul 26, 5:10 PM EDT	HEAVY RAIN 2.51	6 Ne Disputanta, VA	RAIN FELL IN LESS THAN 2 HOURS.
Jul 26, 5:57 PM EDT	FLASH FLOOD	2 Wnw Garysville, VA	ROUTE 635 CLOSED AT JAMES RIVER DRIVE DUE TO WATER ON ROAD.
Jul 26, 6:00 PM EDT	FLASH FLOOD	2 Ese Ettrick, VA	BANK AND BOLLINGBROOK STS CLOSED AT CRATER ROAD DUE TO WATER OVER ROADWAY. NUMEROUS REPORTS OF 3-4 OF RAINFALL IN THIS AREA OVER THE PAST 90 MINUTES.

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, 8.5 hours before the alert went out and 172 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: 1265 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 768 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

261 
WGUS51 KAKQ 262027
FFWAKQ
VAC149-730-262330-
/O.NEW.KAKQ.FF.W.0034.210726T2027Z-210726T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
427 PM EDT Mon Jul 26 2021

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  Northern Prince George County in south central Virginia...
  The Northeastern City of Petersburg in south central Virginia...

* Until 730 PM EDT.

* At 427 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 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...
  Petersburg, Colonial Heights, Fort Lee, Prince George, Garysville, 
  Burrowsville, Jordans Point, Taylors Corner, Brandon and 
  Petersburg National Battlefield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3725 7737 3726 7722 3732 7723 3732 7722
      3730 7713 3731 7709 3727 7708 3730 7700
      3725 7697 3723 7701 3722 7702 3721 7701
      3720 7702 3720 7704 3719 7704 3718 7707
      3714 7712 3716 7722 3722 7739 3724 7741

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

$$

Zimmerman

2 follow-up statements

334 
WGUS71 KAKQ 262117
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
517 PM EDT Mon Jul 26 2021

VAC149-730-262330-
/O.CON.KAKQ.FF.W.0034.000000T0000Z-210726T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Prince George VA-City of Petersburg VA-
517 PM EDT Mon Jul 26 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT THIS 
EVENING FOR NORTHERN PRINCE GEORGE COUNTY AND THE NORTHEASTERN CITY 
OF PETERSBURG...

At 517 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 3 and 4 inches of rain have 
fallen. Additional rainfall amounts up to 1 inch are possible in the 
warned area. Flash flooding is ongoing.

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...
  Petersburg, Colonial Heights, Fort Lee, Prince George, Garysville, 
  Burrowsville, Jordans Point, Taylors Corner, Brandon and 
  Petersburg National Battlefield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3725 7737 3726 7722 3732 7723 3732 7722
      3730 7713 3731 7709 3727 7708 3730 7700
      3725 7697 3723 7701 3722 7702 3721 7701
      3720 7702 3720 7704 3719 7704 3718 7707
      3714 7712 3716 7722 3722 7739 3724 7741

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

$$

Zimmerman

505 
WGUS71 KAKQ 262327
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
727 PM EDT Mon Jul 26 2021

VAC149-730-262337-
/O.EXP.KAKQ.FF.W.0034.000000T0000Z-210726T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Prince George VA-City of Petersburg VA-
727 PM EDT Mon Jul 26 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 730 PM EDT THIS EVENING FOR 
NORTHERN PRINCE GEORGE COUNTY AND THE NORTHEASTERN 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 3725 7737 3726 7722 3732 7723 3732 7722
      3730 7713 3731 7709 3727 7708 3730 7700
      3725 7697 3723 7701 3722 7702 3721 7701
      3720 7702 3720 7704 3719 7704 3718 7707
      3714 7712 3716 7722 3722 7739 3724 7741

$$

Zimmerman

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 3:15 AM EDT	Flash Flood Watch	AKQ	Charles City, Chesterfield, Dinwiddie, Greensville, Henrico, James City and 18 more	19 hr
Jul 26, 1:48 PM EDT	Special Weather Statement	AKQ	Hanover	27 min
Jul 26, 2:14 PM EDT	Special Weather Statement	AKQ	Hanover	31 min
Jul 26, 2:24 PM EDT	Special Weather Statement	AKQ	King and Queen	51 min
Jul 26, 2:25 PM EDT	Severe Thunderstorm Warning	AKQ	Hanover, Henrico, New Kent	50 min
Jul 26, 2:40 PM EDT	Areal Flood Advisory	AKQ	Chesterfield, City of Richmond	2 hr
Jul 26, 2:59 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Chesterfield, Henrico, New Kent, City of Richmond	46 min
Jul 26, 3:10 PM EDT	Special Weather Statement	AKQ	King and Queen	50 min
Jul 26, 3:39 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, James City, New Kent, Prince George, Surry, Sussex and 1 more	51 min
Jul 26, 3:45 PM EDT	Areal Flood Advisory	AKQ	Chesterfield, Henrico, Prince George, City of Colonial Heights, City of Hopewell	3 hr
Jul 26, 4:02 PM EDT	Flash Flood Warning	AKQ	Chesterfield, Prince George, City of Colonial Heights, City of Hopewell	3 hr
Jul 26, 4:05 PM EDT	Special Marine Warning	AKQ		55 min
Jul 26, 4:10 PM EDT	Special Weather Statement	AKQ	Prince Edward	50 min
Jul 26, 4:14 PM EDT	Severe Thunderstorm Warning	AKQ	Chesterfield, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg	31 min
Jul 26, 4:23 PM EDT	Severe Thunderstorm Warning	AKQ	Sussex	37 min
Jul 26, 4:33 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, James City, Southampton, Surry, Sussex, City of Hampton and 1 more	42 min
Jul 26, 4:34 PM EDT	Special Weather Statement	AKQ	Chesterfield	41 min
Jul 26, 4:51 PM EDT	Areal Flood Advisory	AKQ	Amelia, Chesterfield	2 hr
Jul 26, 4:53 PM EDT	Areal Flood Advisory	AKQ	Charles City, James City, York, City of Williamsburg	112 min
Jul 26, 5:04 PM EDT	Special Weather Statement	AKQ	Isle of Wight, Southampton, Sussex	41 min
Jul 26, 5:05 PM EDT	Areal Flood Advisory	AKQ	Isle of Wight, Southampton, Surry, Sussex	3 hr
Jul 26, 5:06 PM EDT	Flash Flood Warning	AKQ	Amelia, Chesterfield, Dinwiddie	3 hr
Jul 26, 5:45 PM EDT	Special Weather Statement	AKQ	Isle of Wight, Southampton, City of Chesapeake, City of Franklin, City of Portsmouth, City of Suffolk	45 min
Jul 26, 5:52 PM EDT	Areal Flood Advisory	AKQ	Isle of Wight, Southampton, City of Franklin, City of Suffolk	3 hr
Jul 26, 6:30 PM EDT	Special Weather Statement	AKQ	Southampton, City of Chesapeake, City of Franklin, City of Portsmouth, City of Suffolk	45 min
Jul 26, 6:55 PM EDT	Areal Flood Advisory	AKQ	Southampton, City of Suffolk	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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.