Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 111, NWS Charleston, WV

September 1, 20216 counties in West Virginia

NWS Charleston, WV issued this flash flood warning at Sep 1, 2021, 6:19 AM EDT for 6 counties in West Virginia. It was in force for 6 hr. 1 report 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
Sep 1, 2021, 6:19 AM EDT (10:19 UTC)
Expired
Sep 1, 2021, 12:19 PM EDT
In force
6 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Braxton County, WV, Calhoun County, WV, Gilmer County, WV, Lewis County, WV, Ritchie County, WV, Wirt County, WV

The radar

The Charleston,WV radar (KRLX), 82 km from the middle of the area, began a volume at 10:22 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
Sep 1, 8:20 AM EDTFLASH FLOOD1 N Flatwoods, WVRAILROAD TRACKS WASHING OUT DUE TO HIGH WATER ALONG RT 4 NEAR THE TOWN OF FLATWOODS.

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 10.3 hours before the alert went out and 198 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, Pittsburgh, PA at 00:00Z on 2021-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 43 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, Pittsburgh, PA at 00:00Z on 2021-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
43 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

394 
WGUS51 KRLX 011019
FFWRLX
WVC007-013-021-041-085-105-011330-
/O.NEW.KRLX.FF.W.0111.210901T1019Z-210901T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
619 AM EDT Wed Sep 1 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Northern Braxton County in north central West Virginia...
  Calhoun County in north central West Virginia...
  Gilmer County in north central West Virginia...
  Lewis County in northern West Virginia...
  South Central Ritchie County in northwestern West Virginia...
  East Central Wirt County in northwestern West Virginia...

* Until 930 AM EDT.

* At 619 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 0.5 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...
  Weston, Glenville, Grantsville, Cedar Creek State Park, 
  Arnoldsburg, Stonewall Jackson, Burnsville, Flatwoods, Sand Fork, 
  Cedarville, Stouts Mills, Baldwin, Exchange, Normantown, Troy, 
  Linn, Coxs Mills, Tanner, Newberne and Heaters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

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 3901 8125 3910 8035 3876 8042 3865 8101
      3867 8103 3865 8105 3864 8110 3864 8111
      3863 8111 3863 8112

FLASH FLOOD...RADAR INDICATED

$$

JZ
4 follow-up statements
691 
WGUS71 KRLX 011227
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
827 AM EDT Wed Sep 1 2021

WVC085-105-011237-
/O.CAN.KRLX.FF.W.0111.000000T0000Z-210901T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ritchie WV-Wirt WV-
827 AM EDT Wed Sep 1 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTH CENTRAL RITCHIE AND 
EAST CENTRAL WIRT COUNTIES...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

A Flash Flood Watch remains in effect until 800 PM EDT Wednesday for 
portions of northeast Kentucky, southeast Ohio, southwest Virginia 
and West Virginia.

LAT...LON 3867 8103 3865 8105 3864 8111 3863 8112
      3887 8089 3906 8070 3910 8035 3876 8042
      3866 8099

$$

WVC007-013-021-041-011330-
/O.CON.KRLX.FF.W.0111.000000T0000Z-210901T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Braxton WV-Calhoun WV-Gilmer WV-Lewis WV-
827 AM EDT Wed Sep 1 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM EDT THIS 
MORNING FOR NORTHERN BRAXTON, SOUTHEASTERN CALHOUN, CENTRAL GILMER 
AND LEWIS COUNTIES...

At 827 AM EDT, Doppler radar indicated heavy rain across the warned 
area. Between 0.5 and 1.25 inches of rain have fallen. Additional 
rainfall amounts of 0.5 to 1 inch are possible in the warned area. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rain.

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...
  Weston, Glenville, Cedar Creek State Park, Stonewall Jackson, 
  Burnsville, Flatwoods, Sand Fork, Stouts Mills, Sand Run, Heaters, 
  Baldwin, Exchange, Falls Mills, Linn, Cedarville, Alum Bridge, 
  Walkersville, Ireland, Camden and Wilsie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

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 3867 8103 3865 8105 3864 8111 3863 8112
      3887 8089 3906 8070 3910 8035 3876 8042
      3866 8099

FLASH FLOOD...RADAR INDICATED

$$

30
452 
WGUS71 KRLX 011317
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
917 AM EDT Wed Sep 1 2021

WVC013-021-011327-
/O.CAN.KRLX.FF.W.0111.000000T0000Z-210901T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Calhoun WV-Gilmer WV-
917 AM EDT Wed Sep 1 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN CALHOUN AND 
CENTRAL GILMER COUNTIES...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

A Flash Flood Watch remains in effect until 800 PM EDT Wednesday for 
portions of northeast Kentucky, southeast Ohio, southwest Virginia 
and West Virginia.

LAT...LON 3910 8035 3876 8042 3875 8045 3869 8084
      3880 8073

$$

WVC007-041-011330-
/O.CON.KRLX.FF.W.0111.000000T0000Z-210901T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Braxton WV-Lewis WV-
917 AM EDT Wed Sep 1 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM EDT THIS 
MORNING FOR NORTHEASTERN BRAXTON AND CENTRAL LEWIS COUNTIES...

At 917 AM EDT, Doppler radar indicated heavy rain across the warned 
area. Between 0.5 and 1.2 inches of rain have fallen. Additional 
rainfall amounts of 0.5 to 1 inch are possible in the warned area. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rain.

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...
  Burnsville, Flatwoods, Falls Mills, Sand Run, Walkersville, 
  Ireland, Heaters, Exchange and Horner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

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 3910 8035 3876 8042 3875 8045 3869 8084
      3880 8073

FLASH FLOOD...RADAR INDICATED

$$

30
435 
WGUS51 KRLX 011320
FFWRLX
WVC007-041-011630-
/O.EXT.KRLX.FF.W.0111.000000T0000Z-210901T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
920 AM EDT Wed Sep 1 2021

The National Weather Service in Charleston has extended the

* Flash Flood Warning for...
  Northeastern Braxton County in north central West Virginia...
  Central Lewis County in northern West Virginia...

* Until 1230 PM EDT.

* At 920 AM EDT, Doppler radar and automated rain gauges indicated 
  heavy rain falling across the warned area. Between 1.25 and 2 
  inches of rain have fallen. Additional rainfall amounts of 0.5 to 
  1 inch are possible in the warned area. Flash flooding is ongoing 
  or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Radar and automated gauges.

  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...
  Burnsville, Flatwoods, Falls Mills, Sand Run, Walkersville, 
  Ireland, Heaters, Exchange and Horner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

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 3910 8035 3876 8042 3875 8045 3869 8084
      3880 8073

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

30
752 
WGUS71 KRLX 011619
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1219 PM EDT Wed Sep 1 2021

WVC007-041-011629-
/O.CAN.KRLX.FF.W.0111.000000T0000Z-210901T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Braxton WV-Lewis WV-
1219 PM EDT Wed Sep 1 2021

...FLASH FLOOD WARNING FOR NORTHEASTERN BRAXTON AND CENTRAL LEWIS 
COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

LAT...LON 3910 8035 3876 8042 3875 8045 3869 8084
      3880 8073

$$

30

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 6:22 AM EDTFlash Flood WarningRLXClay, Kanawha, Nicholas3 hr
Sep 1, 7:28 AM EDTFlash Flood WarningRLXBraxton, Calhoun, Clay, Kanawha, Nicholas, Roane4 hr
Sep 1, 7:35 AM EDTFlash Flood WarningRLXBarbour, Doddridge, Harrison, Lewis, Randolph, Taylor and 1 more6 hr
Sep 1, 11:20 AM EDTAreal Flood WarningRLXBraxton, Clay3 hr
Sep 1, 12:19 PM EDTAreal Flood WarningRLXBraxton, Lewis3 hr
Sep 1, 1:27 PM EDTAreal Flood WarningRLXBarbour, Harrison, Lewis, Randolph, Taylor, Upshur3 hr

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.