Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 12, NWS Louisville, KY

May 4, 2021Edmonson County, Hart County, Kentucky

NWS Louisville, KY issued this flash flood warning at May 4, 2021, 4:51 AM CDT for Edmonson County, Hart 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: May 4, 2021, 4:51 AM CDT (09:51 UTC)
Expired: May 4, 2021, 8:00 AM CDT
In force: 3 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Edmonson County, KY, Hart County, KY

The radar

The Louisville radar (KLVX), 76 km from the middle of the area, began a volume at 09:51 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
May 4, 5:30 AM CDT	FLASH FLOOD	2 Se Windyville, KY	RAPID WATER RISE OVER E HARRIS 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, 9.9 hours before the alert went out and 138 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: 2263 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1050 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted.

188 
WGUS53 KLMK 040951
FFWLMK
KYC061-099-041300-
/O.NEW.KLMK.FF.W.0012.210504T0951Z-210504T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
451 AM CDT Tue May 4 2021

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Southwestern Hart County in central Kentucky...
  Central Edmonson County in south central Kentucky...

* Until 800 AM CDT.

* At 451 AM CDT, 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 as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Munfordville, Brownsville, Bonnieville, Stockholm, Bee, Mammoth 
  Cave, Big Windy, Straw, Cub Run, and Dogcreek.

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 3735 8612 3733 8612 3733 8610 3733 8609
      3734 8611 3735 8610 3735 8608 3734 8609
      3734 8607 3735 8607 3735 8606 3736 8607
      3738 8590 3720 8585 3717 8606 3715 8606
      3711 8632 3731 8635

FLASH FLOOD...RADAR INDICATED

$$

13

1 follow-up statement

902 
WGUS73 KLMK 041255
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
755 AM CDT Tue May 4 2021

KYC061-099-041305-
/O.EXP.KLMK.FF.W.0012.000000T0000Z-210504T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edmonson KY-Hart KY-
755 AM CDT Tue May 4 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING FOR 
SOUTHWESTERN HART AND CENTRAL EDMONSON 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 400 AM CDT Wednesday for 
portions of northwest Kentucky and south central Kentucky.

LAT...LON 3735 8612 3733 8612 3733 8610 3733 8609
      3734 8611 3735 8610 3735 8608 3734 8609
      3734 8607 3735 8607 3735 8606 3736 8607
      3738 8590 3720 8585 3717 8606 3715 8606
      3711 8632 3731 8635

$$

DLM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 12:08 AM CDT	Special Weather Statement	LMK	Warren	22 min
May 4, 12:12 AM CDT	Severe Thunderstorm Warning	LMK	Edmonson, Warren	33 min
May 4, 12:26 AM CDT	Severe Thunderstorm Warning	LMK	Allen, Monroe	34 min
May 4, 12:45 AM CDT	Special Weather Statement	LMK	Edmonson	15 min
May 4, 1:32 AM CDT	Special Weather Statement	LMK	Barren, Warren	43 min
May 4, 1:57 AM CDT	Special Weather Statement	LMK	Metcalfe	33 min
May 4, 2:15 AM CDT	Special Weather Statement	LMK	Monroe	30 min
May 4, 2:18 AM CDT	Special Weather Statement	LMK	Warren	27 min
May 4, 2:43 AM CDT	Special Weather Statement	LMK	Barren	32 min
May 4, 2:54 AM CDT	Special Weather Statement	LMK	Butler	36 min
May 4, 3:13 AM CDT	Severe Thunderstorm Warning	LMK	Barren, Edmonson, Hart	32 min
May 4, 3:22 AM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland	23 min
May 4, 3:27 AM CDT	Flash Flood Warning	LMK	Barren	3 hr
May 4, 3:42 AM CDT	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	33 min
May 4, 3:47 AM CDT	Special Weather Statement	LMK	Adair, Butler, Clinton, Cumberland, Edmonson, Green and 2 more	28 min
May 4, 3:55 AM CDT	Flash Flood Watch	LMK	Adair, Allen, Barren, Butler, Casey, Clinton and 13 more	22 hr
May 4, 4:06 AM CDT	Flash Flood Warning	LMK	Cumberland, Monroe	3 hr
May 4, 4:11 AM CDT	Special Weather Statement	LMK	Butler	34 min
May 4, 4:21 AM CDT	Flash Flood Warning	LMK	Butler	5 hr
May 4, 4:24 AM CDT	Special Weather Statement	LMK	Edmonson, Warren	36 min
May 4, 5:03 AM CDT	Special Weather Statement	LMK	Green	27 min
May 4, 5:20 AM CDT	Special Weather Statement	LMK	Allen, Barren, Logan, Simpson, Warren	40 min
May 4, 5:21 AM CDT	Flash Flood Warning	LMK	Adair, Cumberland, Metcalfe	3 hr
May 4, 5:49 AM CDT	Flash Flood Warning	LMK	Barren, Edmonson, Metcalfe, Warren	3 hr
May 4, 5:54 AM CDT	Flash Flood Warning	LMK	Logan, Simpson, Warren	3 hr
May 4, 5:58 AM CDT	Special Weather Statement	LMK	Allen, Simpson	47 min
May 4, 6:10 AM CDT	Severe Thunderstorm Warning	LMK	Allen, Simpson	20 min
May 4, 6:26 AM CDT	Special Weather Statement	LMK	Barren, Monroe	19 min
May 4, 6:28 AM CDT	Areal Flood Advisory	LMK	Allen, Barren, Metcalfe, Monroe	3 hr
May 4, 6:43 AM CDT	Special Weather Statement	LMK	Allen, Cumberland, Monroe	47 min
May 4, 6:51 AM CDT	Flash Flood Warning	LMK	Adair, Barren, Clinton, Cumberland, Metcalfe, Monroe and 1 more	6 hr
May 4, 8:46 AM CDT	Areal Flood Warning	LMK	Logan, Simpson, Warren	3 hr
May 4, 8:50 AM CDT	Areal Flood Warning	LMK	Barren, Edmonson, Metcalfe, Warren	4 hr
May 4, 10:12 AM CDT	River Flood Warning	LMK	Cumberland, Monroe	11 hr
May 4, 1:19 PM CDT	River Flood Warning	LMK	Butler, Warren	4 days
May 4, 1:19 PM CDT	River Flood Warning	LMK	Butler, Muhlenberg, Ohio	5 days
May 4, 5:40 PM CDT	Special Weather Statement	LMK	Warren	50 min
May 4, 5:48 PM CDT	Special Weather Statement	LMK	Spencer	27 min
May 4, 6:13 PM CDT	Special Weather Statement	LMK	Simpson	47 min
May 4, 6:26 PM CDT	Special Weather Statement	LMK	Edmonson	49 min
May 4, 6:41 PM CDT	Special Weather Statement	LMK	Butler	34 min
May 4, 6:56 PM CDT	Special Weather Statement	LMK	Butler	34 min

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.