Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 28, NWS Charleston, WV

June 10, 2021Nicholas County, Webster County, West Virginia

NWS Charleston, WV issued this flash flood warning at Jun 10, 2021, 6:46 PM EDT for Nicholas County, Webster 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
Jun 10, 2021, 6:46 PM EDT (22:46 UTC)
Expired
Jun 10, 2021, 9:45 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Nicholas County, WV, Webster County, WV

The radar

The Charleston,WV radar (KRLX), 97 km from the middle of the area, began a volume at 22:47 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, 10.8 hours before the alert went out and 170 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 2021-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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, Roanoke, VA at 12:00Z on 2021-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
185 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

665 
WGUS51 KRLX 102246
FFWRLX
WVC067-101-110145-
/O.NEW.KRLX.FF.W.0028.210610T2246Z-210611T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
646 PM EDT Thu Jun 10 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  West Central Webster County in northeastern West Virginia...
  Northeastern Nicholas County in southeastern West Virginia...

* Until 945 PM EDT.

* At 646 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2.5 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...
  Cowen and Boggs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

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 3839 8068 3845 8068 3847 8066 3852 8060
      3848 8050 3841 8055

FLASH FLOOD...RADAR INDICATED

$$

JZ
1 follow-up statement
801 
WGUS71 KRLX 110145
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
945 PM EDT Thu Jun 10 2021

WVC067-101-110155-
/O.EXP.KRLX.FF.W.0028.000000T0000Z-210611T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nicholas WV-Webster WV-
945 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 945 PM EDT THIS EVENING FOR 
WEST CENTRAL WEBSTER AND NORTHEASTERN NICHOLAS COUNTIES...

The heavy rain has ended. 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 Friday for 
portions of northeast Kentucky, southeast Ohio and West Virginia.

LAT...LON 3839 8068 3845 8068 3847 8066 3852 8060
      3848 8050 3841 8055

$$

JZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 9:24 PM EDTSpecial Weather StatementRLXMason51 min
Jun 10, 2:43 AM EDTFlash Flood WarningRLXCabell, Lincoln3 hr
Jun 10, 3:01 AM EDTFlash Flood WarningRLXJackson, Mason, Putnam4 hr
Jun 10, 3:27 AM EDTSpecial Weather StatementRLXBoone33 min
Jun 10, 7:24 AM EDTAreal Flood WarningRLXJackson5 hr
Jun 10, 9:59 AM EDTFlash Flood WatchRLXBarbour, Boone, Braxton, Cabell, Calhoun, Clay and 28 more36 hr
Jun 10, 1:24 PM EDTFlash Flood WarningRLXWirt96 min
Jun 10, 1:29 PM EDTFlash Flood WarningRLXJackson, Mason91 min
Jun 10, 1:39 PM EDTSpecial Weather StatementRLXMingo36 min
Jun 10, 3:18 PM EDTSpecial Weather StatementRLXRandolph42 min
Jun 10, 3:31 PM EDTFlash Flood WarningRLXJackson, Roane2 hr
Jun 10, 4:28 PM EDTFlash Flood WarningRLXJackson, Roane, Wirt, Wood6 hr
Jun 10, 4:38 PM EDTFlash Flood WarningRLXFayette3 hr
Jun 10, 5:17 PM EDTFlash Flood WarningRLXWebster4 hr
Jun 10, 5:27 PM EDTSpecial Weather StatementRLXFayette33 min
Jun 10, 5:33 PM EDTFlash Flood WarningRLXUpshur4 hr
Jun 10, 6:24 PM EDTSpecial Weather StatementRLXBoone51 min
Jun 10, 6:27 PM EDTSpecial Weather StatementRLXBarbour48 min
Jun 10, 6:58 PM EDTFlash Flood WarningRLXClay, Nicholas3 hr
Jun 10, 7:31 PM EDTFlash Flood WarningRLXLincoln, Putnam3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.