Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 38, NWS Louisville, KY

July 30, 2021Harrison County, Nicholas County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jul 30, 2021, 12:15 AM EDT for Harrison County, Nicholas County, Kentucky. It was in force for 3 hr. 6 reports 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: Jul 30, 2021, 12:15 AM EDT (04:15 UTC)
Expired: Jul 30, 2021, 3:00 AM EDT
In force: 3 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Harrison County, KY, Nicholas County, KY

The radar

The Cincinnati radar (KILN), 110 km from the middle of the area, began a volume at 04:15 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
Jul 30, 12:40 AM EDT	FLASH FLOOD	1 E Carlisle, KY	SEVERAL STREETS IN CARLISLE EXPERIENCING FLASH FLOODING.
Jul 30, 1:00 AM EDT	FLASH FLOOD	1 E Carlisle, KY	* 1 FATAL * CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 1 E CARLISLE. EMERGENCY MANAGER REPORTED THAT THE RESIDENT OF THE TRAILER HAS BEEN LOCATED DECEASED. TIME ESTIMATED USING RADAR.
Jul 30, 1:00 AM EDT	FLASH FLOOD	1 E Carlisle, KY	* 1 FATAL * CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 1 E CARLISLE. MULTIPLE CITIES AND CARS IN CARLISLE FLOODED. TRAILER WASHED OFF ITS FOUNDATION...RESIDENT IS MISSING.
Jul 30, 1:00 AM EDT	FLASH FLOOD	1 E Carlisle, KY	CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 1 E CARLISLE. CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 1 E CARLISLE. MULTIPLE CITIES AND CARS IN CARLISLE FLOODED. TRAILER WASHED OFF ITS FOUNDATION...RESIDENT IS MISSING.
Jul 30, 1:00 AM EDT	FLASH FLOOD	1 E Carlisle, KY	EMERGENCY MANAGER REPORTED THAT THE RESIDENT OF THE TRAILER HAS BEEN LOCATED DECEASED. TIME ESTIMATED USING RADAR.
Jul 30, 1:00 AM EDT	FLASH FLOOD	1 E Carlisle, KY	MULTIPLE CITIES AND CARS IN CARLISLE FLOODED. TRAILER WASHED OFF ITS FOUNDATION...RESIDENT IS MISSING.

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 00:00Z, 4.3 hours before the alert went out and 111 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: 2113 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 691 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

028 
WGUS53 KLMK 300415
FFWLMK
KYC097-181-300700-
/O.NEW.KLMK.FF.W.0038.210730T0415Z-210730T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
1215 AM EDT Fri Jul 30 2021

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Eastern Harrison County in central Kentucky...
  Nicholas County in central Kentucky...

* Until 300 AM EDT.

* At 1215 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 2 to 4 inches 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...
  Carlisle, Barefoot, Barterville, Headquarters, Morning Glory, 
  Buena Vista, Ellisville, Venus, Claysville and Oddville.

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 3858 8421 3856 8422 3855 8421 3855 8416
      3852 8418 3850 8418 3850 8416 3849 8417
      3843 8401 3844 8400 3842 8400 3844 8397
      3836 8392 3836 8389 3835 8390 3836 8387
      3831 8383 3821 8395 3856 8442

FLASH FLOOD...RADAR INDICATED

$$

CJP

1 follow-up statement

797 
WGUS73 KLMK 300446
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
1246 AM EDT Fri Jul 30 2021

KYC097-181-300700-
/O.CON.KLMK.FF.W.0038.000000T0000Z-210730T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harrison KY-Nicholas KY-
1246 AM EDT Fri Jul 30 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 AM EDT EARLY THIS 
MORNING FOR EASTERN HARRISON AND NICHOLAS COUNTIES...

At 1246 AM EDT, local law enforcement reported thunderstorms 
producing heavy rain across the warned area. Between 2 and 3 inches 
of rain have fallen. Additional rainfall amounts of 1 to 3 inches 
are possible in the warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, highways,
         streets and underpasses as well as other poor drainage
         and low-lying areas.

Some locations that will experience flash flooding include...
  Carlisle, Barefoot, Barterville, Headquarters, Morning Glory, 
  Buena Vista, Ellisville, Venus, Claysville and Oddville.

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 3858 8421 3856 8422 3855 8421 3855 8416
      3852 8418 3850 8418 3850 8416 3849 8417
      3843 8401 3844 8400 3842 8400 3844 8397
      3836 8392 3836 8389 3835 8390 3836 8387
      3831 8383 3821 8395 3856 8442

FLASH FLOOD...OBSERVED

$$

CJP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 11:46 PM EDT	Special Weather Statement	LMK	Meade	29 min
Jul 29, 11:55 PM EDT	Special Weather Statement	LMK	Nicholas	35 min
Jul 29, 11:57 PM EDT	Areal Flood Advisory	LMK	Harrison, Nicholas	18 min
Jul 30, 1:29 AM EDT	Special Weather Statement	LMK	Clark	31 min
Jul 30, 1:33 AM EDT	Areal Flood Advisory	LMK	Bourbon, Clark	12 min
Jul 30, 1:35 AM EDT	Special Weather Statement	LMK	Meade	25 min
Jul 30, 1:45 AM EDT	Flash Flood Warning	LMK	Bourbon, Clark	2 hr
Jul 30, 2:57 AM EDT	Areal Flood Advisory	LMK	Garrard, Madison	2 hr
Jul 30, 3:53 AM EDT	Areal Flood Advisory	LMK	Boyle, Lincoln	112 min
Jul 30, 3:57 AM EDT	Special Weather Statement	LMK	Lincoln	18 min
Jul 30, 4:02 AM EDT	Special Weather Statement	LMK	Taylor	28 min
Jul 30, 4:24 AM EDT	Special Weather Statement	LMK	Adair	21 min
Jul 30, 4:43 AM EDT	Special Weather Statement	LMK	Russell	17 min
Jul 30, 4:46 AM EDT	Special Weather Statement	LMK	Green	29 min
Jul 30, 5:17 AM EDT	Special Weather Statement	LMK	Adair, Clinton	28 min
Jul 30, 5:54 AM EDT	Areal Flood Advisory	LMK	Lincoln	2 hr
Jul 30, 5:57 AM EDT	Areal Flood Advisory	LMK	Clinton	2 hr
Jul 30, 6:53 AM EDT	Areal Flood Warning	LMK	Bourbon, Nicholas	3 hr

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.