Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 117, NWS Charleston, WV

October 8, 20214 counties in West Virginia

NWS Charleston, WV issued this flash flood warning at Oct 8, 2021, 9:00 PM EDT for 4 counties in West Virginia. It was in force for 3 hr. 5 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
Oct 8, 2021, 9:00 PM EDT (01:00 UTC)
Expired
Oct 9, 2021, 12:00 AM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Boone County, WV, Kanawha County, WV, Lincoln County, WV, Putnam County, WV

The radar

The Charleston,WV radar (KRLX), 7 km from the middle of the area, began a volume at 01:04 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
Oct 8, 9:00 PM EDTHEAVY RAIN 3.37South Charleston, WVTRAINED SPOTTER REPORTED RAIN TOTALING 3.37 INCHES FROM MULTIPLE STORMS THROUGHOUT THE DAY.
Oct 8, 9:21 PM EDTFLASH FLOOD1 N South Charleston, WVHIGH WATER REPORTED IN THE AREA OF THE BUCKET, 4030 WASHINGTON ST W IN DUNBAR. THE ROAD IS IMPASSIBLE.
Oct 8, 10:18 PM EDTFLASH FLOOD2 Nw Charleston, WVHIGH WATER REPORTED ON VIRGINIA ST W IN CHARLESTON AT THE RAILROAD UNDERPASS.
Oct 8, 11:49 PM EDTHEAVY RAIN 2.72 S Dunbar, WVMESONET STATION FW7791 SOUTH CHARLESTON.
Oct 8, 11:50 PM EDTHEAVY RAIN 1.841 Wsw South Charleston, WVMESONET STATION AP326 SPRING HILL.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.0 hours before the alert went out and 213 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, Cncnati-Daytn, OH at 00:00Z on 2021-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 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, Cncnati-Daytn, OH at 00:00Z on 2021-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
351 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1313 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

847 
WGUS51 KRLX 090100
FFWRLX
WVC005-039-043-079-090400-
/O.NEW.KRLX.FF.W.0117.211009T0100Z-211009T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Northwestern Boone County in central West Virginia...
  Northwestern Kanawha County in central West Virginia...
  East Central Lincoln County in central West Virginia...
  East Central Putnam County in western West Virginia...

* Until midnight EDT.

* At 900 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between a storm earlier in the 
  day and current storms, a total of 3 to 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...
  Charleston, Nitro, Madison, Jefferson, South Charleston, St. 
  Albans, Dunbar, Sissonville, Institute, Alum Creek, Tornado, Cross 
  Lanes, Julian, Danville, Ashford, Woodville and Foster.

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 3853 8178 3853 8175 3853 8152 3804 8175
      3807 8192

FLASH FLOOD...RADAR INDICATED

$$

JLB
2 follow-up statements
206 
WGUS71 KRLX 090247
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1047 PM EDT Fri Oct 8 2021

WVC005-039-043-079-090400-
/O.CON.KRLX.FF.W.0117.000000T0000Z-211009T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boone WV-Kanawha WV-Lincoln WV-Putnam WV-
1047 PM EDT Fri Oct 8 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT 
FOR NORTHWESTERN BOONE, NORTHWESTERN KANAWHA, EAST CENTRAL LINCOLN 
AND EAST CENTRAL PUTNAM COUNTIES...

At 1047 PM EDT, emergency management reported flash flooding as a 
result of heavy rain within the warned area. Flash flooding is 
already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

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...
  Charleston, Nitro, Madison, Jefferson, South Charleston, St. 
  Albans, Dunbar, Sissonville, Institute, Alum Creek, Tornado, Cross 
  Lanes, Julian, Danville, Ashford, Woodville and Foster.

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 3853 8178 3853 8175 3853 8152 3804 8175
      3807 8192

FLASH FLOOD...OBSERVED

$$

JLB
483 
WGUS71 KRLX 090356
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1156 PM EDT Fri Oct 8 2021

WVC005-039-043-079-090406-
/O.EXP.KRLX.FF.W.0117.000000T0000Z-211009T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boone WV-Kanawha WV-Lincoln WV-Putnam WV-
1156 PM EDT Fri Oct 8 2021

...FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT EDT TONIGHT FOR 
NORTHWESTERN BOONE, NORTHWESTERN KANAWHA, EAST CENTRAL LINCOLN AND 
EAST CENTRAL PUTNAM COUNTIES...

The heavy rain has ended, and flood waters have receded. Flooding is 
no longer expected to pose a threat. Please continue to heed 
remaining road closures.

LAT...LON 3853 8178 3853 8175 3853 8152 3804 8175
      3807 8192

$$

TRM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 8:33 PM EDTSpecial Weather StatementRLXBoone, Kanawha27 min
Oct 8, 9:13 PM EDTSpecial Weather StatementRLXRoane32 min
Oct 8, 9:47 PM EDTSpecial Weather StatementRLXClay28 min

Nearby

Flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.