Alert archive / Virginia / Flash Flood Warnings in 2023

Flash Flood Warning 21, NWS Wakefield, VA

July 8, 2023Hanover County, Henrico County, City of Richmond, Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 8, 2023, 1:43 PM EDT for Hanover County, Henrico County, City of Richmond, Virginia. It was in force for 92 min. 3 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, 2023, 1:43 PM EDT (17:43 UTC)
Expired
Jul 8, 2023, 3:15 PM EDT
In force
92 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

Counties City of Richmond, VA, Hanover County, VA, Henrico County, VA

The radar

The Norfolk radar (KAKQ), 81 km from the middle of the area, began a volume at 17:45 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, 1:50 PM EDTFLASH FLOOD1 S Lakeside, VALakeshore Ave closed at Brook Ave due to flooding.
Jul 8, 2:20 PM EDTFLASH FLOOD2 W Laurel, VAOne lane of north-bound US-250 impassable due to water on roadway.
Jul 8, 2:35 PM EDTFLASH FLOOD2 Nne Tuckahoe, VAVA-157 Pemberton Road partially closed at Downing St due to water on roadway.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 5.7 hours before the alert went out and 154 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, Washington/Dulle, VA at 12:00Z on 2023-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 305 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, Washington/Dulle, VA at 12:00Z on 2023-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939Sfc1 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
305 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

633 
WGUS51 KAKQ 081743
FFWAKQ
VAC085-087-760-081915-
/O.NEW.KAKQ.FF.W.0021.230708T1743Z-230708T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
143 PM EDT Sat Jul 8 2023

The National Weather Service in Wakefield has issued a

* Flash Flood Warning for...
  South Central Hanover County in central Virginia...
  Northwestern Henrico County in central Virginia...
  The City of Richmond in central Virginia...

* Until 315 PM EDT.

* At 143 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 inches of 
  rain have fallen. The expected rainfall rate is 2 to 3 inches in 1 
  hour. Additional rainfall amounts up 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...
  Richmond, Virginia Union University, University Of Richmond, 
  Virginia Commonwealth University, Downtown Richmond, Tuckahoe, Bon 
  Air, Mechanicsville, Lakeside, Laurel, Glen Allen, East Highland 
  Park, Dumbarton, Greendale, Solomons Store, Longdale, Roslyn 
  Hills, Chamberlayne and Atlee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3756 7761 3758 7762 3759 7762 3759 7763
      3764 7759 3770 7751 3768 7738 3764 7738
      3757 7742 3753 7747 3749 7752 3753 7753
      3753 7754 3754 7756 3753 7758 3753 7759
      3754 7760 3755 7760

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR

$$

Poche
2 follow-up statements
009 
WGUS71 KAKQ 081821
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
221 PM EDT Sat Jul 8 2023

VAC085-087-760-081915-
/O.CON.KAKQ.FF.W.0021.000000T0000Z-230708T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hanover VA-Henrico VA-City of Richmond VA-
221 PM EDT Sat Jul 8 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT THIS 
AFTERNOON FOR SOUTH CENTRAL HANOVER AND NORTHWESTERN HENRICO 
COUNTIES AND THE CITY OF RICHMOND...

At 221 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1.5 and 2.5 inches of rain have 
fallen. Flash flooding is already occurring.

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...
  Richmond, Virginia Union University, University Of Richmond, 
  Virginia Commonwealth University, Downtown Richmond, Tuckahoe, Bon 
  Air, Mechanicsville, Lakeside, Laurel, Glen Allen, East Highland 
  Park, Dumbarton, Greendale, Solomons Store, Longdale, Roslyn 
  Hills, Chamberlayne and Atlee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3756 7761 3758 7762 3759 7762 3759 7763
      3764 7759 3770 7751 3768 7738 3764 7738
      3757 7742 3753 7747 3749 7752 3753 7753
      3753 7754 3754 7756 3753 7758 3753 7759
      3754 7760 3755 7760

FLASH FLOOD...RADAR INDICATED

$$

Poche
326 
WGUS71 KAKQ 081915
FFSAKQ

Flash Flood Statement
National Weather Service Wakefield VA
315 PM EDT Sat Jul 8 2023

VAC085-087-760-081925-
/O.EXP.KAKQ.FF.W.0021.000000T0000Z-230708T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hanover VA-Henrico VA-City of Richmond VA-
315 PM EDT Sat Jul 8 2023

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL HANOVER AND 
NORTHWESTERN HENRICO COUNTIES AND THE CITY OF RICHMOND...

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

LAT...LON 3756 7761 3758 7762 3759 7762 3759 7763
      3764 7759 3770 7751 3768 7738 3764 7738
      3757 7742 3753 7747 3749 7752 3753 7753
      3753 7754 3754 7756 3753 7758 3753 7759
      3754 7760 3755 7760

$$

Poche

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:16 PM EDTSevere Thunderstorm WarningAKQCumberland, Prince Edward44 min
Jul 8, 12:47 PM EDTSpecial Weather StatementAKQNorthumberland28 min
Jul 8, 12:52 PM EDTFlash Flood WarningAKQLancaster, Northumberland, Richmond83 min
Jul 8, 1:18 PM EDTSpecial Weather StatementAKQHanover27 min
Jul 8, 1:23 PM EDTSpecial Weather StatementAKQHanover37 min
Jul 8, 1:31 PM EDTSpecial Weather StatementAKQLancaster, Middlesex59 min
Jul 8, 1:38 PM EDTSpecial Weather StatementAKQCity of Norfolk, City of Portsmouth67 min
Jul 8, 1:58 PM EDTAreal Flood AdvisoryAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk2 hr
Jul 8, 2:14 PM EDTSpecial Weather StatementAKQKing and Queen, King William31 min
Jul 8, 2:30 PM EDTSpecial Weather StatementAKQWestmoreland45 min
Jul 8, 2:59 PM EDTSpecial Weather StatementAKQNew Kent31 min
Jul 8, 3:36 PM EDTAreal Flood AdvisoryAKQCharles City, James City, New Kent, Prince George2 hr
Jul 8, 4:03 PM EDTSpecial Weather StatementAKQSurry42 min
Jul 8, 4:17 PM EDTSevere Thunderstorm WarningAKQIsle of Wight, Surry43 min
Jul 8, 4:19 PM EDTSpecial Marine WarningAKQ71 min
Jul 8, 4:46 PM EDTAreal Flood AdvisoryAKQSurry2 hr
Jul 8, 5:04 PM EDTSpecial Weather StatementAKQIsle of Wight, City of Newport News41 min
Jul 8, 5:13 PM EDTSpecial Weather StatementAKQLunenburg62 min
Jul 8, 5:15 PM EDTFlash Flood WarningAKQSurry105 min
Jul 8, 5:38 PM EDTSpecial Weather StatementAKQMecklenburg52 min
Jul 8, 5:38 PM EDTSpecial Weather StatementAKQPrince Edward52 min
Jul 8, 5:59 PM EDTSpecial Weather StatementAKQBrunswick, Mecklenburg46 min
Jul 8, 6:01 PM EDTSpecial Weather StatementAKQSouthampton, City of Franklin44 min
Jul 8, 6:14 PM EDTSpecial Weather StatementAKQDinwiddie46 min
Jul 8, 6:46 PM EDTAreal Flood AdvisoryAKQBrunswick, Dinwiddie, Nottoway2 hr
Jul 8, 6:58 PM EDTSpecial Weather StatementAKQAmelia, Cumberland, Prince Edward62 min
Jul 8, 7:00 PM EDTFlash Flood WarningAKQBrunswick, Dinwiddie, Nottoway2 hr

Nearby

Flash Flood Warnings in Virginia, 2023Every flash flood warning in 2023

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.