Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 8, NWS Charleston, WV

May 4, 20214 counties in West Virginia

NWS Charleston, WV issued this flash flood warning at May 4, 2021, 11:59 AM EDT for 4 counties in West Virginia. It was in force for 5 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
May 4, 2021, 11:59 AM EDT (15:59 UTC)
Expired
May 4, 2021, 5:00 PM EDT
In force
5 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Doddridge County, WV, Harrison County, WV, Ritchie County, WV, Tyler County, WV

The radar

The Pittsburgh radar (KPBZ), 135 km from the middle of the area, began a volume at 15:59 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
May 4, 12:45 PM EDTFLASH FLOODGreenwood, WVFLOODING ALONG DOTSON RUN IN THE TOWN OF GREENWOOD HAS CAUSED A HORSE TRAILER TO BE SWEPT INTO THE WATER, AND IT IS BANKED UP AGAINST A BRIDGE.
May 4, 12:46 PM EDTFLASH FLOODToll Gate, WVNUMEROUS HOMES, CAMPERS, AND VEHICLES UNDER WATER IN THE TOWN OF TOLL GATE

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 12:00Z, 4.0 hours before the alert went out and 125 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 12:00Z on 2021-05-04Temperature 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, Pittsburgh, PA at 12:00Z on 2021-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.19395878Sfc1 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
662 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

981 
WGUS51 KRLX 041559
FFWRLX
WVC017-033-085-095-041900-
/O.NEW.KRLX.FF.W.0008.210504T1559Z-210504T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
1159 AM EDT Tue May 4 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Doddridge County in northern West Virginia...
  Northwestern Harrison County in northern West Virginia...
  Southeastern Tyler County in northern West Virginia...
  East Central Ritchie County in northwestern West Virginia...

* Until 300 PM EDT.

* At 1159 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across 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...
  Salem, West Union, Pullman, Smithburg, Blandville, Canton, New 
  Milton, Grove, Center Point, Greenwood, Sedalia, Berea and Wallace.

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 3915 8110 3924 8095 3934 8085 3947 8065
      3944 8061 3945 8058 3943 8058 3944 8056
      3943 8054 3943 8052 3946 8051 3946 8049
      3947 8049 3945 8039 3911 8079

FLASH FLOOD...RADAR INDICATED

$$

SL
5 follow-up statements
979 
WGUS71 KRLX 041726
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
126 PM EDT Tue May 4 2021

WVC017-033-085-095-041900-
/O.CON.KRLX.FF.W.0008.000000T0000Z-210504T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Doddridge WV-Harrison WV-Ritchie WV-Tyler WV-
126 PM EDT Tue May 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM EDT THIS 
AFTERNOON FOR DODDRIDGE, NORTHWESTERN HARRISON, SOUTHEASTERN TYLER 
AND EAST CENTRAL RITCHIE COUNTIES...

At 126 PM EDT, emergency management reported thunderstorms producing 
heavy rain across the warned area. Between 1 and 1.5 inches of rain 
have fallen. Flash flooding is ongoing or expected to begin shortly. 
Flooding has been reported in and around the towns of Pennsboro and 
Greenwood, including along Dotson Run.

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...
  Salem, West Union, Pullman, Smithburg, Blandville, Canton, New 
  Milton, Grove, Center Point, Greenwood, Sedalia, Berea and Wallace.

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 3915 8110 3924 8095 3934 8085 3947 8065
      3944 8061 3945 8058 3943 8058 3944 8056
      3943 8054 3943 8052 3946 8051 3946 8049
      3947 8049 3945 8039 3911 8079

FLASH FLOOD...OBSERVED

$$

SL
399 
WGUS51 KRLX 041849
FFWRLX
WVC017-033-085-095-042100-
/O.EXT.KRLX.FF.W.0008.000000T0000Z-210504T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
249 PM EDT Tue May 4 2021

The National Weather Service in Charleston has extended the

* Flash Flood Warning for...
  Doddridge County in northern West Virginia...
  Northwestern Harrison County in northern West Virginia...
  Southeastern Tyler County in northern West Virginia...
  East Central Ritchie County in northwestern West Virginia...

* Until 500 PM EDT.

* At 249 PM EDT, emergency management reported thunderstorms 
  producing heavy rain across the warned area. Between 1 and 1.5 
  inches of rain have fallen. Flash flooding is ongoing or expected 
  to begin shortly.

  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...
  Salem, West Union, Pullman, Smithburg, Blandville, Canton, New 
  Milton, Grove, Center Point, Greenwood, Sedalia, Berea and Wallace.

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 3915 8110 3924 8095 3934 8085 3947 8065
      3944 8061 3945 8058 3943 8058 3944 8056
      3943 8054 3943 8052 3946 8051 3946 8049
      3947 8049 3945 8039 3911 8079

FLASH FLOOD...OBSERVED

$$

SL
452 
WGUS71 KRLX 041853
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
253 PM EDT Tue May 4 2021

WVC033-095-041903-
/O.CAN.KRLX.FF.W.0008.000000T0000Z-210504T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harrison WV-Tyler WV-
253 PM EDT Tue May 4 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN HARRISON AND 
SOUTHEASTERN TYLER COUNTIES...

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

LAT...LON 3920 8100 3924 8095 3930 8089 3930 8088
      3934 8084 3934 8083 3940 8073 3942 8072
      3943 8070 3936 8063 3935 8063 3933 8064
      3931 8066 3930 8069 3917 8089

$$

WVC017-085-042100-
/O.CON.KRLX.FF.W.0008.000000T0000Z-210504T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Doddridge WV-Ritchie WV-
253 PM EDT Tue May 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS 
AFTERNOON FOR NORTHWESTERN DODDRIDGE AND EAST CENTRAL RITCHIE 
COUNTIES...

At 253 PM EDT, emergency management reported thunderstorms producing 
heavy rain across the warned area. Between 1 and 1.5 inches of rain 
have fallen. Flash flooding is ongoing or expected to begin shortly.

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...
  West Union, Pullman, Smithburg, Canton and Greenwood.

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 3920 8100 3924 8095 3930 8089 3930 8088
      3934 8084 3934 8083 3940 8073 3942 8072
      3943 8070 3936 8063 3935 8063 3933 8064
      3931 8066 3930 8069 3917 8089

FLASH FLOOD...OBSERVED

$$

SL
954 
WGUS71 KRLX 042016
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
416 PM EDT Tue May 4 2021

WVC017-085-042100-
/O.CON.KRLX.FF.W.0008.000000T0000Z-210504T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Doddridge WV-Ritchie WV-
416 PM EDT Tue May 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS 
AFTERNOON FOR NORTHWESTERN DODDRIDGE AND EAST CENTRAL RITCHIE 
COUNTIES...

At 416 PM EDT, Emergency management reported flooding along Dotson 
Run in Greenwood due to the heavy rain across the warned area. Radar 
indicated between 1 and 1.5 inches of rain have fallen. Flash 
flooding is ongoing.

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...
  West Union, Pullman, Smithburg, Canton and Greenwood.

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 3920 8100 3924 8095 3930 8089 3930 8088
      3934 8084 3934 8083 3940 8073 3942 8072
      3943 8070 3936 8063 3935 8063 3933 8064
      3931 8066 3930 8069 3917 8089

FLASH FLOOD...OBSERVED

$$

RG
727 
WGUS71 KRLX 042054
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
454 PM EDT Tue May 4 2021

WVC017-085-042104-
/O.EXP.KRLX.FF.W.0008.000000T0000Z-210504T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Doddridge WV-Ritchie WV-
454 PM EDT Tue May 4 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 5 PM EDT THIS AFTERNOON FOR 
NORTHWESTERN DODDRIDGE AND EAST CENTRAL RITCHIE COUNTIES...

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 3920 8100 3924 8095 3930 8089 3930 8088
      3934 8084 3934 8083 3940 8073 3942 8072
      3943 8070 3936 8063 3935 8063 3933 8064
      3931 8066 3930 8069 3917 8089

$$

RG

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 11:01 AM EDTFlash Flood WarningRLXPleasants, Ritchie, Tyler, Wirt, Wood3 hr
May 4, 2:06 PM EDTAreal Flood WarningRLXRitchie, Tyler3 hr
May 4, 2:35 PM EDTFlash Flood WatchRLXBraxton, Calhoun, Clay, Doddridge, Gilmer, Harrison and 11 more17 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.