Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 40, NWS Louisville, KY

August 13, 2021Metcalfe County, Monroe County, Kentucky

NWS Louisville, KY issued this flash flood warning at Aug 13, 2021, 2:51 PM CDT for Metcalfe County, Monroe County, Kentucky. It was in force for 3 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 13, 2021, 2:51 PM CDT (19:51 UTC)
Expired: Aug 13, 2021, 6:00 PM CDT
In force: 3 hr
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Flood severity: None

Counties Metcalfe County, KY, Monroe County, KY

The radar

The Nashville radar (KOHX), 101 km from the middle of the area, began a volume at 19:54 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.9 hours before the alert went out and 112 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: 1072 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1013 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

926 
WGUS53 KLMK 131951
FFWLMK
KYC169-171-132300-
/O.NEW.KLMK.FF.W.0040.210813T1951Z-210813T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
251 PM CDT Fri Aug 13 2021

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Southwestern Metcalfe County in south central Kentucky...
  North Central Monroe County in south central Kentucky...

* Until 600 PM CDT.

* At 251 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. The expected rainfall rate is 2 to 3 inches in 1 
  hour. 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...
  Cyclone, Beaumont, Sulphur Lick and Willow Shade.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Move to higher ground now. Act quickly to protect your life.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3684 8574 3685 8574 3686 8574 3687 8573
      3688 8568 3688 8563 3684 8559 3683 8560
      3680 8567 3680 8574 3680 8577 3683 8577
      3684 8576 3684 8575

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR

$$

EBW

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 7:31 PM CDT	Special Weather Statement	LMK	Meade	29 min
Aug 12, 8:03 PM CDT	Special Weather Statement	LMK	Henry	27 min
Aug 12, 8:26 PM CDT	Special Weather Statement	LMK	Spencer	19 min
Aug 12, 8:45 PM CDT	Special Weather Statement	LMK	Shelby	30 min
Aug 12, 8:52 PM CDT	Special Weather Statement	LMK	Spencer	23 min
Aug 12, 9:04 PM CDT	Severe Thunderstorm Warning	LMK	Shelby, Spencer	14 min
Aug 12, 9:14 PM CDT	Special Weather Statement	LMK	Franklin	31 min
Aug 12, 9:32 PM CDT	Special Weather Statement	LMK	Anderson, Harrison, Scott, Woodford	28 min
Aug 12, 10:08 PM CDT	Special Weather Statement	LMK	Scott	22 min
Aug 12, 10:53 PM CDT	Special Weather Statement	LMK	Grayson	37 min
Aug 13, 12:49 PM CDT	Special Weather Statement	LMK	Nicholas	26 min
Aug 13, 1:17 PM CDT	Special Weather Statement	LMK	Scott	28 min
Aug 13, 2:07 PM CDT	Special Weather Statement	LMK	Metcalfe	23 min
Aug 13, 2:28 PM CDT	Areal Flood Advisory	LMK	Metcalfe, Monroe	2 hr
Aug 13, 3:15 PM CDT	Special Weather Statement	LMK	Metcalfe	15 min
Aug 13, 3:49 PM CDT	Areal Flood Advisory	LMK	Barren, Metcalfe, Monroe	3 hr
Aug 13, 4:16 PM CDT	Special Weather Statement	LMK	Washington	29 min
Aug 13, 4:21 PM CDT	Special Weather Statement	LMK	Marion	24 min
Aug 13, 4:39 PM CDT	Severe Thunderstorm Warning	LMK	Marion, Washington	36 min
Aug 13, 4:46 PM CDT	Special Weather Statement	LMK	Bourbon	29 min
Aug 13, 4:51 PM CDT	Special Weather Statement	LMK	Scott	24 min
Aug 13, 4:56 PM CDT	Special Weather Statement	LMK	Harrison	19 min
Aug 13, 4:59 PM CDT	Special Weather Statement	LMK	Fayette	31 min
Aug 13, 5:04 PM CDT	Special Weather Statement	LMK	Anderson	26 min
Aug 13, 5:11 PM CDT	Special Weather Statement	LMK	Jessamine	34 min
Aug 13, 5:13 PM CDT	Special Weather Statement	LMK	Nelson	32 min
Aug 13, 5:21 PM CDT	Areal Flood Advisory	LMK	Fayette, Jessamine	3 hr
Aug 13, 5:24 PM CDT	Special Weather Statement	LMK	Edmonson	36 min
Aug 13, 5:25 PM CDT	Areal Flood Advisory	LMK	Scott, Woodford	3 hr
Aug 13, 5:27 PM CDT	Special Weather Statement	LMK	Nicholas	33 min
Aug 13, 5:33 PM CDT	Special Weather Statement	LMK	Anderson	27 min
Aug 13, 5:36 PM CDT	Special Weather Statement	LMK	Bullitt	24 min
Aug 13, 5:48 PM CDT	Special Weather Statement	LMK	Nelson	27 min
Aug 13, 6:11 PM CDT	Special Weather Statement	LMK	Nelson	19 min
Aug 13, 6:49 PM CDT	Special Weather Statement	LMK	Shelby	11 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.