Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 7, NWS Louisville, KY

February 28, 20216 counties in Kentucky

NWS Louisville, KY issued this flash flood warning at Feb 28, 2021, 7:59 PM CST for 6 counties in Kentucky. It was in force for 4 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: Feb 28, 2021, 7:59 PM CST (01:59 UTC)
Expired: Mar 1, 2021, 12:00 AM CST
In force: 4 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Adair County, KY, Clinton County, KY, Cumberland County, KY, Metcalfe County, KY, Monroe County, KY, Russell County, KY

The radar

The Louisville radar (KLVX), 143 km from the middle of the area, began a volume at 02:03 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

Time	Report	Where	Remark
Feb 28, 8:30 PM CST	FLASH FLOOD	1 Nw Marrowbone, KY	FLOODING ON GRAY GAP ROAD AT TURNER BRANCH ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.0 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 419 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 979 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

As transmitted.

366 
WGUS53 KLMK 010159
FFWLMK
KYC001-053-057-169-171-207-010600-
/O.NEW.KLMK.FF.W.0007.210301T0159Z-210301T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
759 PM CST Sun Feb 28 2021

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Southern Adair County in south central Kentucky...
  Clinton County in south central Kentucky...
  Cumberland County in south central Kentucky...
  Southeastern Metcalfe County in south central Kentucky...
  Monroe County in south central Kentucky...
  Russell County in south central Kentucky...

* Until midnight CST.

* At 759 PM CST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 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.

* Some locations that will experience flash flooding include...
  Columbia, Tompkinsville, Albany, Jamestown, Edmonton, Burkesville, 
  Leslie, Russell Springs, Gamaliel, and Bakerton.

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.

Please report flooding to your local law enforcement agency when you 
can do so safely and have them relay your report to the National 
Weather Service in Louisville.

&&

LAT...LON 3709 8554 3711 8497 3710 8495 3711 8490
      3704 8491 3701 8486 3700 8484 3695 8491
      3696 8495 3692 8496 3686 8506 3683 8506
      3681 8503 3675 8500 3670 8502 3668 8500
      3663 8500 3661 8499 3661 8498 3663 8585

FLASH FLOOD...RADAR INDICATED

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 7:01 PM CST	Flash Flood Warning	LMK	Allen, Barren, Logan, Simpson, Warren	6 hr
Feb 28, 7:07 PM CST	Severe Thunderstorm Warning	LMK	Allen, Barren, Monroe	38 min
Feb 28, 7:20 PM CST	Special Weather Statement	LMK	Simpson	25 min
Feb 28, 7:37 PM CST	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	38 min
Feb 28, 8:07 PM CST	Special Weather Statement	LMK	Clinton, Cumberland, Russell	23 min
Feb 28, 8:14 PM CST	Severe Thunderstorm Warning	LMK	Adair, Clinton, Russell	16 min
Feb 28, 8:43 PM CST	Areal Flood Warning	LMK	Boyle, Casey, Garrard, Lincoln, Madison	13 hr
Feb 28, 8:46 PM CST	Areal Flood Warning	LMK	Barren, Edmonson, Green, Hart, Larue, Marion and 3 more	13 hr
Feb 28, 9:04 PM CST	Areal Flood Warning	LMK	Anderson, Bourbon, Clark, Fayette, Franklin, Garrard and 6 more	9 hr
Feb 28, 9:21 PM CST	Areal Flood Warning	LMK	Butler, Logan, Warren	12 hr
Mar 1, 12:01 AM CST	Areal Flood Warning	LMK	Adair, Casey, Clinton, Cumberland, Metcalfe, Monroe and 1 more	9 hr
Mar 1, 12:48 AM CST	Areal Flood Warning	LMK	Allen, Barren, Logan, Simpson, Warren	9 hr
Mar 1, 2:52 AM CST	River Flood Warning	LMK	Warren	44 hr
Mar 1, 4:04 AM CST	River Flood Warning	LMK	Cumberland, Monroe	9 hr
Mar 1, 8:55 AM CST	Areal Flood Warning	LMK	Adair, Allen, Barren, Boyle, Butler, Casey and 17 more	12 hr
Mar 1, 10:31 AM CST	River Flood Warning	LMK	Hancock	21 days

Nearby

Flash Flood Warnings in Kentucky, 2021 Every 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.