Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 23, NWS Charleston, WV

June 10, 2021Lawrence County, Kentucky

NWS Charleston, WV issued this flash flood warning at Jun 10, 2021, 4:47 PM EDT for Lawrence County, Kentucky. 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, 4:47 PM EDT (20:47 UTC)
Expired
Jun 10, 2021, 8:00 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Lawrence County, KY

The radar

The Jackson,KY radar (KJKL), 55 km from the middle of the area, began a volume at 20:50 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.8 hours before the alert went out and 176 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 12:00Z on 2021-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 12:00Z on 2021-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
7 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

722 
WGUS51 KRLX 102047
FFWRLX
KYC127-110000-
/O.NEW.KRLX.FF.W.0023.210610T2047Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Southwestern Lawrence County in northeastern Kentucky...

* Until 800 PM EDT.

* At 447 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has 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...
  Blaine and Martha.

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 3803 8300 3809 8271 3799 8273 3794 8279
      3797 8283 3800 8294 3800 8295 3799 8297
      3798 8298 3797 8298 3796 8299 3797 8302
      3798 8301 3798 8302 3799 8302 3800 8302
      3801 8302 3801 8301

FLASH FLOOD...RADAR INDICATED

$$

JZ
2 follow-up statements
038 
WGUS71 KRLX 102306
FFSRLX

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

KYC127-110000-
/O.CON.KRLX.FF.W.0023.000000T0000Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lawrence KY-
706 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING 
FOR SOUTHWESTERN LAWRENCE COUNTY...

At 706 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 3 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...
  Blaine and Martha.

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 3803 8300 3809 8271 3799 8273 3794 8279
      3797 8283 3800 8294 3800 8295 3799 8297
      3798 8298 3797 8298 3796 8299 3797 8302
      3798 8301 3798 8302 3799 8302 3800 8302
      3801 8302 3801 8301

FLASH FLOOD...RADAR INDICATED

$$

JZ
353 
WGUS71 KRLX 110004
FFSRLX

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

KYC127-110014-
/O.EXP.KRLX.FF.W.0023.000000T0000Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lawrence KY-
804 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHWESTERN LAWRENCE 
COUNTY...

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 3803 8300 3809 8271 3799 8273 3794 8279
      3797 8283 3800 8294 3800 8295 3799 8297
      3798 8298 3797 8298 3796 8299 3797 8302
      3798 8301 3798 8302 3799 8302 3800 8302
      3801 8302 3801 8301

$$

JZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 9:59 AM EDTFlash Flood WatchRLXBoyd, Carter, Greenup, Lawrence36 hr
Jun 10, 4:54 PM EDTFlash Flood WarningRLXCarter, Greenup3 hr
Jun 10, 6:13 PM EDTFlash Flood WarningRLXCarter4 hr

Nearby

Flash Flood Warnings in Kentucky, 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.