Alert archive / Virginia / Flash Flood Warnings in 2021
Flash Flood Warning 99, NWS Charleston, WV
NWS Charleston, WV issued this flash flood warning at Aug 19, 2021, 3:40 PM EDT for Buchanan 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 19, 2021, 3:40 PM EDT (19:40 UTC)
- Expired
- Aug 19, 2021, 6:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, WV
- Area
- Storm-based polygon
- Flood severity
- None
County Buchanan County, VA
The radar
The Jackson,KY radar (KJKL), 107 km from the middle of the area, began a volume at 19:44 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 19, 4:30 PM EDT | FLASH FLOOD | Big Rock, VA | HIGH WATER ACROSS RT 2450 IN BIG ROCK. |
| Aug 19, 4:30 PM EDT | FLASH FLOOD | Hurley, VA | HIGH WATER ACROSS HURLEY RD IN THE TOWN OF HURLEY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 7.7 hours before the alert went out and 234 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
- 17 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
418
WGUS51 KRLX 191940
FFWRLX
VAC027-192245-
/O.NEW.KRLX.FF.W.0099.210819T1940Z-210819T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
340 PM EDT Thu Aug 19 2021
The National Weather Service in Charleston has issued a
* Flash Flood Warning for...
Northwestern Buchanan County in southwestern Virginia...
* Until 645 PM EDT.
* At 340 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 2 inches of rain have
fallen. Additional rainfall amounts up to 1 inch 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...
Grundy, Big Rock, Roseann and Hurley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report Severe Weather to the National Weather Service by
calling toll free, 800 401 9535, when you can do so safely. You may
also report severe weather by posting your report to the Charleston
West Virginia National Weather Service Facebook Page, or by using
the Twitter Hashtag, NWSRLX.
&&
LAT...LON 3749 8204 3743 8196 3739 8194 3723 8220
3732 8227 3732 8228 3734 8225 3735 8223
3737 8220 3739 8219 3741 8214 3745 8209
3747 8206 3748 8205
FLASH FLOOD...RADAR INDICATED
$$
JZ1 follow-up statement
307
WGUS71 KRLX 192242
FFSRLX
Flash Flood Statement
National Weather Service Charleston WV
642 PM EDT Thu Aug 19 2021
VAC027-192252-
/O.EXP.KRLX.FF.W.0099.000000T0000Z-210819T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Buchanan VA-
642 PM EDT Thu Aug 19 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 645 PM EDT THIS EVENING FOR
NORTHWESTERN BUCHANAN COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3749 8204 3743 8196 3739 8194 3723 8220
3732 8227 3732 8228 3734 8225 3735 8223
3737 8220 3739 8219 3741 8214 3745 8209
3747 8206 3748 8205
$$
JZNearby
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.