Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 59, NWS Jackson, KY

August 14, 2021McCreary County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 14, 2021, 9:13 PM EDT for McCreary County, Kentucky. It was in force for 2 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
Aug 14, 2021, 9:13 PM EDT (01:13 UTC)
Expired
Aug 14, 2021, 11:15 PM EDT
In force
2 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

County McCreary County, KY

The radar

The Knoxville radar (KMRX), 116 km from the middle of the area, began a volume at 01:16 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

Nashville Metro, TN (KBNA), launched 00:00Z, 1.2 hours before the alert went out and 207 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, Nashville Metro, TN at 00:00Z on 2021-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1476 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, Nashville Metro, TN at 00:00Z on 2021-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
1476 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

682 
WGUS53 KJKL 150113
FFWJKL
KYC147-150315-
/O.NEW.KJKL.FF.W.0059.210815T0113Z-210815T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson KY
913 PM EDT Sat Aug 14 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Central McCreary County in south central Kentucky...

* Until 1115 PM EDT.

* At 913 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts up 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...
  Whitley City, Beulah Heights, Marshes Siding, Wiborg and Parkers 
  Lake.

This includes the following streams and drainages...
  Cogur Fork, Barren Fork, Spruce Creek, Cumberland River, Freeman 
  Fork, Hens Nest Creek, Big Creek, Indian Creek, Laurel Fork, Big 
  South Fork Cumberland River, Laurel Creek, Railroad Fork, Marsh 
  Creek, Kilburn Fork, Bridge Fork, Eagle Creek and Beaver Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3685 8448 3683 8436 3672 8436 3673 8451

FLASH FLOOD...RADAR INDICATED

$$

CMF
2 follow-up statements
444 
WGUS73 KJKL 150242
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
1042 PM EDT Sat Aug 14 2021

KYC147-150315-
/O.CON.KJKL.FF.W.0059.000000T0000Z-210815T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McCreary KY-
1042 PM EDT Sat Aug 14 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT THIS 
EVENING FOR CENTRAL MCCREARY COUNTY...

At 1042 PM EDT, Doppler radar indicated thunderstorms produced 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...
  Whitley City, Beulah Heights, Marshes Siding, Wiborg and Parkers 
  Lake.

This includes the following streams and drainages...
  Cogur Fork, Barren Fork, Spruce Creek, Cumberland River, Freeman 
  Fork, Hens Nest Creek, Big Creek, Indian Creek, Laurel Fork, Big 
  South Fork Cumberland River, Laurel Creek, Railroad Fork, Marsh 
  Creek, Kilburn Fork, Bridge Fork, Eagle Creek and Beaver Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3685 8448 3683 8436 3672 8436 3673 8451

FLASH FLOOD...RADAR INDICATED

$$

CMF
958 
WGUS73 KJKL 150305
FFSJKL

Flash Flood Statement
National Weather Service Jackson KY
1105 PM EDT Sat Aug 14 2021

KYC147-150315-
/O.EXP.KJKL.FF.W.0059.000000T0000Z-210815T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McCreary KY-
1105 PM EDT Sat Aug 14 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1115 PM EDT THIS EVENING FOR 
CENTRAL MCCREARY COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3685 8448 3683 8436 3672 8436 3673 8451

$$

CMF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 8:04 PM EDTSpecial Weather StatementJKLBell, Harlan41 min
Aug 14, 8:09 PM EDTSevere Thunderstorm WarningJKLBell, Harlan, Leslie36 min
Aug 14, 8:14 PM EDTFlash Flood WarningJKLMcCreary, Pulaski, Wayne91 min
Aug 14, 8:28 PM EDTSevere Thunderstorm WarningJKLBell47 min
Aug 14, 8:43 PM EDTSpecial Weather StatementJKLMcCreary47 min
Aug 14, 9:31 PM EDTSpecial Weather StatementJKLWhitley44 min
Aug 14, 9:47 PM EDTSpecial Weather StatementJKLHarlan, Letcher43 min
Aug 14, 9:51 PM EDTSpecial Weather StatementJKLKnox39 min
Aug 14, 10:15 PM EDTSpecial Weather StatementJKLWhitley30 min
Aug 14, 10:31 PM EDTSpecial Weather StatementJKLLeslie, Letcher, Perry44 min
Aug 15, 4:35 PM EDTSpecial Weather StatementJKLWayne25 min
Aug 15, 6:00 PM EDTSpecial Weather StatementJKLPulaski45 min
Aug 15, 6:46 PM EDTAreal Flood AdvisoryJKLLaurel15 min
Aug 15, 7:01 PM EDTFlash Flood WarningJKLLaurel3 hr
Aug 15, 7:12 PM EDTSpecial Weather StatementJKLKnox, Whitley48 min
Aug 15, 7:15 PM EDTSpecial Weather StatementJKLLetcher, Pike45 min
Aug 15, 7:41 PM EDTAreal Flood AdvisoryJKLLetcher, Pike2 hr
Aug 15, 7:42 PM EDTAreal Flood AdvisoryJKLBell, Clay, Knox, Leslie, Whitley2 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.