Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 115, NWS Charleston, WV

October 8, 2021Buchanan County, Virginia; McDowell County, West Virginia

NWS Charleston, WV issued this flash flood warning at Oct 8, 2021, 6:38 PM EDT for Buchanan County, Virginia; McDowell County, West Virginia. It was in force for 3 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
Oct 8, 2021, 6:38 PM EDT (22:38 UTC)
Expired
Oct 8, 2021, 9:45 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Buchanan County, VA, McDowell County, WV

The radar

The Charleston,WV radar (KRLX), 109 km from the middle of the area, began a volume at 22:40 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

Roanoke, VA (KRNK), launched 12:00Z, 10.6 hours before the alert went out and 207 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, Roanoke, VA at 12:00Z on 2021-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Roanoke, VA at 12:00Z on 2021-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

238 
WGUS51 KRLX 082238
FFWRLX
VAC027-WVC047-090145-
/O.NEW.KRLX.FF.W.0115.211008T2238Z-211009T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
638 PM EDT Fri Oct 8 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  East Central Buchanan County in southwestern Virginia...
  Southwestern McDowell County in southern West Virginia...

* Until 945 PM EDT.

* At 638 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 inches of 
  rain have fallen. 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...
  Bradshaw and Jolo.

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 3742 8183 3732 8169 3721 8185 3728 8195

FLASH FLOOD...RADAR INDICATED

$$

JLB
2 follow-up statements
089 
WGUS71 KRLX 090105
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
905 PM EDT Fri Oct 8 2021

VAC027-WVC047-090145-
/O.CON.KRLX.FF.W.0115.000000T0000Z-211009T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Buchanan VA-McDowell WV-
905 PM EDT Fri Oct 8 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT THIS 
EVENING FOR EAST CENTRAL BUCHANAN AND SOUTHWESTERN MCDOWELL 
COUNTIES...

At 905 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2.5 and 3 inches of rain have 
fallen. 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...
  Bradshaw and Jolo.

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 3742 8183 3732 8169 3721 8185 3728 8195

FLASH FLOOD...RADAR INDICATED

$$

JLB
920 
WGUS71 KRLX 090140
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
940 PM EDT Fri Oct 8 2021

VAC027-WVC047-090150-
/O.EXP.KRLX.FF.W.0115.000000T0000Z-211009T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Buchanan VA-McDowell WV-
940 PM EDT Fri Oct 8 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 945 PM EDT THIS EVENING FOR 
EAST CENTRAL BUCHANAN AND SOUTHWESTERN MCDOWELL COUNTIES...

Any flooding that occurred has receded. Please continue to heed any 
road closures.

LAT...LON 3742 8183 3732 8169 3721 8185 3728 8195

$$

JLB

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 8, 2:39 PM EDTSpecial Weather StatementRLXKanawha36 min
Oct 8, 4:02 PM EDTSpecial Weather StatementRLXCabell28 min
Oct 8, 4:10 PM EDTSpecial Weather StatementRLXMason35 min
Oct 8, 4:35 PM EDTSpecial Weather StatementRLXMcDowell25 min
Oct 8, 4:52 PM EDTSpecial Weather StatementRLXMason23 min
Oct 8, 5:38 PM EDTSpecial Weather StatementRLXMason37 min
Oct 8, 6:09 PM EDTSpecial Weather StatementRLXWyoming36 min
Oct 8, 6:14 PM EDTSpecial Weather StatementRLXLincoln31 min
Oct 8, 6:53 PM EDTSpecial Weather StatementRLXPutnam22 min
Oct 8, 7:20 PM EDTFlash Flood WarningRLXCabell, Mason, Putnam3 hr
Oct 8, 7:59 PM EDTSpecial Weather StatementRLXPutnam31 min

Nearby

Flash Flood Warnings in Virginia, 2021Flash Flood Warnings in West 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.