Alert archive / Virginia / Flash Flood Warnings in 2021
Flash Flood Warning 51, NWS Wakefield, VA
NWS Wakefield, VA issued this flash flood warning at Aug 16, 2021, 3:36 PM EDT for Henrico 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
- Aug 16, 2021, 3:36 PM EDT (19:36 UTC)
- Expired
- Aug 16, 2021, 6:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Henrico County, VA
The radar
The Norfolk radar (KAKQ), 86 km from the middle of the area, began a volume at 19:37 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 |
|---|---|---|---|
| Aug 16, 5:30 PM EDT | FLASH FLOOD | 1 Ene Tuckahoe, VA | FLOODING NEAR PARHAM RD AND PATTERSON ROAD. SOME ROADS IN THE AREA ARE FLOODED AND IMPASSIBLE. |
| Aug 16, 5:30 PM EDT | FLASH FLOOD | 2 Nnw Tuckahoe, VA | ROAD IMPASSABLE DUE TO FLOODING NEAR THE INTERSECTION OF GAYTON ROAD AND MONMOUTH DRIVE. |
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, 7.6 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 161 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
372
WGUS51 KAKQ 161936
FFWAKQ
VAC087-162245-
/O.NEW.KAKQ.FF.W.0051.210816T1936Z-210816T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wakefield VA
336 PM EDT Mon Aug 16 2021
The National Weather Service in Wakefield has issued a
* Flash Flood Warning for...
Northwestern Henrico County in central Virginia...
* Until 645 PM EDT.
* At 336 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1.5 inches of
rain have fallen. Additional rainfall amounts of 0.5 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, Tuckahoe, Laurel, Lakeside, Glen Allen, Roslyn Hills,
Dumbarton, Greendale and Short Pump.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3762 7763 3768 7759 3768 7756 3768 7751
3763 7749 3759 7751 3759 7753 3759 7754
3757 7756 3757 7762 3758 7762 3759 7762
3760 7763
FLASH FLOOD...RADAR INDICATED
$$
Rogers1 follow-up statement
471
WGUS71 KAKQ 162049
FFSAKQ
Flash Flood Statement
National Weather Service Wakefield VA
449 PM EDT Mon Aug 16 2021
VAC087-162245-
/O.CON.KAKQ.FF.W.0051.000000T0000Z-210816T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henrico VA-
449 PM EDT Mon Aug 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM EDT THIS
EVENING FOR NORTHWESTERN HENRICO COUNTY...
At 449 PM EDT, Doppler radar indicated another round of showers and
isolated thunderstorms was moving into most of northwestern Henrico
county. Additional heavy rain is expected. Additional rainfall
amounts of 0.5 to 2 inches are possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Richmond, Tuckahoe, Laurel, Lakeside, Glen Allen, Roslyn Hills,
Dumbarton, Greendale and Short Pump.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3762 7763 3768 7759 3768 7756 3768 7751
3763 7749 3759 7751 3759 7753 3759 7754
3757 7756 3757 7762 3758 7762 3759 7762
3760 7763
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:05 PM EDT | Flash Flood Warning | AKQ | Chesterfield, City of Richmond | 3 hr |
| Aug 15, 8:21 PM EDT | Areal Flood Advisory | AKQ | Goochland, Hanover, Henrico, Powhatan | 3 hr |
| Aug 15, 8:42 PM EDT | Flash Flood Warning | AKQ | Hanover, Henrico | 3 hr |
| Aug 15, 10:17 PM EDT | Areal Flood Advisory | AKQ | Chesterfield, Hanover, Henrico, City of Richmond | 118 min |
| Aug 16, 2:43 AM EDT | Areal Flood Advisory | AKQ | Chesterfield, Henrico, City of Richmond | 3 hr |
| Aug 16, 3:29 AM EDT | Areal Flood Advisory | AKQ | Chesterfield, Prince George, City of Colonial Heights, City of Hopewell, City of Petersburg | 6 hr |
| Aug 16, 3:33 AM EDT | Areal Flood Advisory | AKQ | Southampton | 2 hr |
| Aug 16, 6:11 AM EDT | Areal Flood Advisory | AKQ | Amelia, Chesterfield | 4 hr |
| Aug 16, 8:18 AM EDT | Flash Flood Watch | AKQ | Charles City, Chesterfield, Essex, Gloucester, Hanover, Henrico and 18 more | 12 hr |
| Aug 16, 8:41 AM EDT | Areal Flood Advisory | AKQ | James City, City of Williamsburg | 2 hr |
| Aug 16, 1:22 PM EDT | Areal Flood Advisory | AKQ | City of Richmond | 5 hr |
| Aug 16, 1:47 PM EDT | Special Weather Statement | AKQ | City of Norfolk, City of Portsmouth | 43 min |
| Aug 16, 2:00 PM EDT | Areal Flood Advisory | AKQ | Isle of Wight, Surry, York, City of Newport News | 3 hr |
| Aug 16, 2:09 PM EDT | Areal Flood Advisory | AKQ | City of Chesapeake, City of Norfolk, City of Portsmouth | 38 min |
| Aug 16, 2:37 PM EDT | Flash Flood Warning | AKQ | Isle of Wight, Surry, York, City of Newport News | 3 hr |
| Aug 16, 2:46 PM EDT | Flash Flood Warning | AKQ | City of Chesapeake, City of Norfolk, City of Portsmouth | 2 hr |
| Aug 16, 3:00 PM EDT | Areal Flood Advisory | AKQ | City of Chesapeake, City of Virginia Beach | 3 hr |
| Aug 16, 3:13 PM EDT | Areal Flood Advisory | AKQ | Henrico | 2 hr |
| Aug 16, 3:39 PM EDT | Special Weather Statement | AKQ | Caroline, Essex, Richmond, Westmoreland | 51 min |
| Aug 16, 4:51 PM EDT | Areal Flood Advisory | AKQ | Chesterfield, Henrico, City of Richmond | 114 min |
| Aug 16, 5:03 PM EDT | Flash Flood Warning | AKQ | Chesterfield, Henrico, City of Richmond | 3 hr |
| Aug 16, 5:53 PM EDT | Areal Flood Advisory | AKQ | Chesterfield | 112 min |
| Aug 16, 6:35 PM EDT | Special Weather Statement | AKQ | Greensville, City of Emporia | 55 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.