Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Charleston, WV

March 18, 2021Cabell County, Lincoln County, Wayne County, West Virginia

NWS Charleston, WV issued this flash flood warning at Mar 18, 2021, 8:39 PM EDT for Cabell County, Lincoln County, Wayne County, West 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
Mar 18, 2021, 8:39 PM EDT (00:39 UTC)
Expired
Mar 18, 2021, 11:45 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Cabell County, WV, Lincoln County, WV, Wayne County, WV

The radar

The Charleston,WV radar (KRLX), 60 km from the middle of the area, began a volume at 00:41 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
Mar 18, 9:00 PM EDTFLASH FLOOD6 Ne East Lynn Lake, WVFLOODING WAS OBSERVED ALONG BEECH FORK ROAD NEAR THE STATE PARK, WHICH CLOSED THE ROAD FOR A TIME.
Mar 18, 9:43 PM EDTFLASH FLOOD1 Wnw East Lynn Lake, WVWATER WAS OBSERVED ALONG THE RIGHT HAND LANE OF BIG LYNN CREEK ROAD AS THE ADJACENT CREEK ROSE OUT OF ITS BANKS.

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, 0.7 hours before the alert went out and 184 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 2021-03-19Temperature 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, Cncnati-Daytn, OH at 00:00Z on 2021-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
571 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

674 
WGUS51 KRLX 190039
FFWRLX
WVC011-043-099-190345-
/O.NEW.KRLX.FF.W.0005.210319T0039Z-210319T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
839 PM EDT Thu Mar 18 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  South Central Cabell County in central West Virginia...
  Northwestern Lincoln County in central West Virginia...
  Central Wayne County in western West Virginia...

* Until 1145 PM EDT.

* At 839 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen in the past two hours. 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 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...
  East Lynn Lake, West Hamlin, East Lynn and Branchland.

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 3811 8257 3818 8258 3821 8244 3827 8233
      3829 8217 3817 8213

FLASH FLOOD...RADAR INDICATED

$$

TRM
2 follow-up statements
590 
WGUS71 KRLX 190136
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
936 PM EDT Thu Mar 18 2021

WVC011-043-099-190345-
/O.CON.KRLX.FF.W.0005.000000T0000Z-210319T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cabell WV-Lincoln WV-Wayne WV-
936 PM EDT Thu Mar 18 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT THIS 
EVENING FOR SOUTH CENTRAL CABELL, NORTHWESTERN LINCOLN AND CENTRAL 
WAYNE COUNTIES...

At 936 PM EDT, Doppler radar indicated thunderstorms produced heavy 
rain across the warned area. Between 1 and 2 inches of rain have 
fallen. The heaviest of the rain was over, with additional rainfall 
amounts of less than 0.5 inches expected in the warned area. Flash 
flooding is ongoing or expected to begin shortly. There were two 
mudslides in Branchland, high water on Route 214 about one half of a 
mile from Route 119, and a road in Fort Gay was blocked by high 
water, all shortly after 9 PM. There were also rises on area streams.


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...
  East Lynn Lake, West Hamlin, East Lynn and Branchland.

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 3811 8257 3818 8258 3821 8244 3827 8233
      3829 8217 3817 8213

FLASH FLOOD...RADAR INDICATED

$$

TRM
985 
WGUS71 KRLX 190338
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1138 PM EDT Thu Mar 18 2021

WVC011-043-099-190348-
/O.EXP.KRLX.FF.W.0005.000000T0000Z-210319T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cabell WV-Lincoln WV-Wayne WV-
1138 PM EDT Thu Mar 18 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1145 PM EDT THIS EVENING FOR 
SOUTH CENTRAL CABELL, NORTHWESTERN LINCOLN AND CENTRAL WAYNE 
COUNTIES...

Flood waters are receding, therefore the Flash Flood Warning is 
being allowed to expire. Motorists should continue to use extreme 
caution and be prepared for water or debris remaining on roadways. 
Please continue to heed remaining road closures.

LAT...LON 3811 8257 3818 8258 3821 8244 3827 8233
      3829 8217 3817 8213

$$

RPY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 8:08 PM EDTFlash Flood WarningRLXKanawha82 min
Mar 18, 8:25 PM EDTSpecial Weather StatementRLXWebster35 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.