Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 24, NWS Jackson, KY

June 9, 2021Clay County, Laurel County, Owsley County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jun 9, 2021, 4:51 PM EDT for Clay County, Laurel County, Owsley County, Kentucky. It was in force for 3 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
Jun 9, 2021, 4:51 PM EDT (20:51 UTC)
Expired
Jun 9, 2021, 8:00 PM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Clay County, KY, Laurel County, KY, Owsley County, KY

The radar

The Jackson,KY radar (KJKL), 61 km from the middle of the area, began a volume at 20:54 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
Jun 9, 5:00 PM EDTFLASH FLOOD3 Ssw Malcomb, KYTHE CLAY COUNTY 911 CALL CENTER REPORTED A BRIEF ROAD CLOSURE, BETWEEN 5 AND 6 PM, ON KY-472 ALONG BRAY CREEK DUE TO WATER FLOWING OVER THE ROAD.

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 12:00Z, 8.9 hours before the alert went out and 241 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 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2021-06-09The 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
1 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
886 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

588 
WGUS53 KJKL 092051
FFWJKL
KYC051-125-189-100000-
/O.NEW.KJKL.FF.W.0024.210609T2051Z-210610T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
451 PM EDT Wed Jun 9 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  East Central Laurel County in south central Kentucky...
  Northwestern Clay County in southeastern Kentucky...
  Central Owsley County in southeastern Kentucky...

* Until 800 PM EDT.

* At 451 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 3 inches of 
  rain have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Burning Springs, Malcomb, Grace, Sidell, Sacker Gap, Fall Rock, 
  Treadway, Shepherdtown, Fogertown, Chestnutburg, Urban, Byron, 
  Benge, Bernice, Laurel Creek, Sextons Creek, Mill Pond, Sourwood, 
  Portersburg and Crawford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3708 8397 3718 8408 3726 8394 3725 8390
      3729 8388 3733 8382 3734 8378 3736 8380
      3740 8374 3728 8360

FLASH FLOOD...RADAR INDICATED

$$

GEERTSON
2 follow-up statements
572 
WGUS73 KJKL 092229
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
629 PM EDT Wed Jun 9 2021

KYC051-125-189-100000-
/O.CON.KJKL.FF.W.0024.000000T0000Z-210610T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay KY-Laurel KY-Owsley KY-
629 PM EDT Wed Jun 9 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING 
FOR EAST CENTRAL LAUREL, NORTHWESTERN CLAY AND CENTRAL OWSLEY 
COUNTIES...

At 629 PM EDT, the emergency dispatch office in Clay County reported 
that that KY 472 had been temporarily closed due to water flowing 
over the road.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Burning Springs, Malcomb, Grace, Sidell, Sacker Gap, Fall Rock, 
  Treadway, Shepherdtown, Fogertown, Chestnutburg, Urban, Byron, 
  Benge, Bernice, Laurel Creek, Sextons Creek, Mill Pond, Sourwood, 
  Portersburg and Crawford.

Another brief round of rainfall will likely result in continued high 
stream levels and isolated flash flooding in the warned area through 
8 PM. Additional rainfall amounts up to 1 inch are possible during 
the next hour and a half.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3708 8397 3718 8408 3726 8394 3725 8390
      3729 8388 3733 8382 3734 8378 3736 8380
      3740 8374 3728 8360

FLASH FLOOD...OBSERVED

$$

GEERTSON
252 
WGUS73 KJKL 092355
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
755 PM EDT Wed Jun 9 2021

KYC051-125-189-100005-
/O.EXP.KJKL.FF.W.0024.000000T0000Z-210610T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay KY-Laurel KY-Owsley KY-
755 PM EDT Wed Jun 9 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING FOR EAST 
CENTRAL LAUREL, NORTHWESTERN CLAY AND CENTRAL OWSLEY COUNTIES...

Flood waters are receding. Flash flooding is no longer expected to 
pose a threat. Please continue to heed remaining road closures.

LAT...LON 3708 8397 3718 8408 3726 8394 3725 8390
      3729 8388 3733 8382 3734 8378 3736 8380
      3740 8374 3728 8360

$$

GEERTSON

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 8:04 PM EDTSpecial Weather StatementJKLFloyd26 min
Jun 8, 8:31 PM EDTSpecial Weather StatementJKLPike29 min
Jun 8, 9:10 PM EDTAreal Flood AdvisoryJKLPike93 min
Jun 9, 3:44 PM EDTAreal Flood AdvisoryJKLClay, Laurel, Owsley3 hr
Jun 9, 5:01 PM EDTAreal Flood AdvisoryJKLElliott, Johnson, Magoffin, Menifee, Morgan, Rowan and 1 more2 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.