Alert archive / Virginia / Flash Flood Warnings in 2022
Flash Flood Warning 21, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Aug 21, 2022, 9:24 PM EDT for Henry County, Pittsylvania County, City of Martinsville, Virginia. It was in force for 4 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 21, 2022, 9:24 PM EDT (01:24 UTC)
- Expired
- Aug 22, 2022, 1:03 AM EDT
- In force
- 4 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties City of Martinsville, VA, Henry County, VA, Pittsylvania County, VA
The radar
The Roanoke radar (KFCX), 68 km from the middle of the area, began a volume at 01:25 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.4 hours before the alert went out and 58 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
- 842 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted.
945
WGUS51 KRNK 220124
FFWRNK
VAC089-143-690-220730-
/O.NEW.KRNK.FF.W.0021.220822T0124Z-220822T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Blacksburg VA
924 PM EDT Sun Aug 21 2022
The National Weather Service in Blacksburg has issued a
* Flash Flood Warning for...
Southeastern Henry County in south central Virginia...
Southwestern Pittsylvania County in south central Virginia...
The City of Martinsville in south central Virginia...
* Until 330 AM EDT Monday.
* At 924 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 1.5 to 3 inches
are possible in the warned area. Flash flooding is 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...
Martinsville... Axton...
Ridgeway... Aiken Summit...
Sandy Level... Laurel Park...
Sandy River...
This includes the following streams and drainages...
Dan River, Childress Creek, East Branch Cascade Creek, Fishing
Fork, Flippins Creek, Banister River, Cascade Creek, Beaver Creek
and Buckhorn Branch.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather
Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports
and pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.
&&
LAT...LON 3674 7991 3677 7951 3660 7952 3654 7952
3654 7956 3654 7962 3654 7971 3654 7976
3654 7982 3654 7987 3654 7989 3654 7990
3654 7991
FLASH FLOOD...RADAR INDICATED
$$
PW2 follow-up statements
593
WGUS71 KRNK 220249
FFSRNK
Flash Flood Statement
National Weather Service Blacksburg VA
1049 PM EDT Sun Aug 21 2022
VAC089-143-690-220730-
/O.CON.KRNK.FF.W.0021.000000T0000Z-220822T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henry VA-Pittsylvania VA-City of Martinsville VA-
1049 PM EDT Sun Aug 21 2022
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM EDT MONDAY FOR
SOUTHEASTERN HENRY AND SOUTHWESTERN PITTSYLVANIA COUNTIES AND THE
CITY OF MARTINSVILLE...
At 1049 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 0.5 to 1.5 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...
Martinsville... Axton...
Ridgeway... Aiken Summit...
Sandy Level... Laurel Park...
Sandy River...
This includes the following streams and drainages...
Dan River, Childress Creek, East Branch Cascade Creek, Fishing
Fork, Flippins Creek, Banister River, Cascade Creek, Beaver Creek
and Buckhorn Branch.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather
Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports
and pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.
&&
LAT...LON 3674 7991 3677 7951 3660 7952 3654 7952
3654 7956 3654 7962 3654 7971 3654 7976
3654 7982 3654 7987 3654 7989 3654 7990
3654 7991
FLASH FLOOD...RADAR INDICATED
$$
PW059
WGUS71 KRNK 220503
FFSRNK
Flash Flood Statement
National Weather Service Blacksburg VA
103 AM EDT Mon Aug 22 2022
VAC089-143-690-220513-
/O.CAN.KRNK.FF.W.0021.000000T0000Z-220822T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henry VA-Pittsylvania VA-City of Martinsville VA-
103 AM EDT Mon Aug 22 2022
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN HENRY AND
SOUTHWESTERN PITTSYLVANIA COUNTIES AND THE CITY OF MARTINSVILLE...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3674 7991 3677 7951 3660 7952 3654 7952
3654 7956 3654 7962 3654 7971 3654 7976
3654 7982 3654 7987 3654 7989 3654 7990
3654 7991
$$
WPThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 8:03 PM EDT | Areal Flood Advisory | RNK | Carroll, Floyd, Patrick | 17 min |
| Aug 21, 8:20 PM EDT | Flash Flood Warning | RNK | Carroll, Floyd, Patrick | 4 hr |
| Aug 21, 9:17 PM EDT | Flash Flood Warning | RNK | Henry, Patrick | 3 hr |
| Aug 21, 9:52 PM EDT | Areal Flood Advisory | RNK | Giles | 2 hr |
| Aug 21, 10:29 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 46 min |
| Aug 21, 10:55 PM EDT | Areal Flood Advisory | RNK | Craig, Giles, Montgomery | 98 min |
| Aug 21, 11:15 PM EDT | Special Weather Statement | RNK | City of Danville | 30 min |
| Aug 21, 11:26 PM EDT | Areal Flood Advisory | RNK | Pittsylvania, City of Danville | 3 hr |
| Aug 22, 2:53 PM EDT | Areal Flood Advisory | RNK | Henry, City of Martinsville | 98 min |
| Aug 22, 3:06 PM EDT | Special Weather Statement | RNK | Franklin | 24 min |
| Aug 22, 3:45 PM EDT | Special Weather Statement | RNK | Pittsylvania | 30 min |
Nearby
Flash Flood Warnings in Virginia, 2022Every flash flood warning in 2022
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.