Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 90, NWS Louisville, KY

July 16, 2021Franklin County, Shelby County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 16, 2021, 3:12 PM EDT for Franklin County, Shelby County, Kentucky. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 16, 2021, 3:12 PM EDT (19:12 UTC)
Expired: Jul 16, 2021, 3:45 PM EDT
In force: 33 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Franklin County, KY, Shelby County, KY

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.2 hours before the alert went out and 168 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: 291 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 941 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

536 
WUUS53 KLMK 161912
SVRLMK
KYC073-211-161945-
/O.NEW.KLMK.SV.W.0090.210716T1912Z-210716T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
312 PM EDT Fri Jul 16 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  East central Shelby County in central Kentucky...
  Central Franklin County in central Kentucky...

* Until 345 PM EDT.

* At 312 PM EDT, a severe thunderstorm was located 9 miles west of
  Frankfort, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Frankfort around 330 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3832 8476 3826 8473 3819 8472 3814 8486
      3813 8487 3812 8499 3813 8502 3812 8504
      3812 8507 3816 8508
TIME...MOT...LOC 1912Z 251DEG 40KT 3815 8504 

HAIL...<.75IN
WIND...60MPH
 
$$

CG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 1:59 PM EDT	Special Weather Statement	LMK	Bullitt	16 min
Jul 16, 2:04 PM EDT	Special Weather Statement	LMK	Lincoln	26 min
Jul 16, 2:12 PM EDT	Areal Flood Advisory	LMK	Adair, Casey	76 min
Jul 16, 2:28 PM EDT	Special Weather Statement	LMK	Spencer	32 min
Jul 16, 2:42 PM EDT	Severe Thunderstorm Warning	LMK	Shelby, Spencer	33 min
Jul 16, 2:59 PM EDT	Special Weather Statement	LMK	Franklin	31 min
Jul 16, 3:48 PM EDT	Special Weather Statement	LMK	Green, Marion, Mercer, Taylor, Washington	57 min
Jul 16, 3:49 PM EDT	Special Weather Statement	LMK	Robertson	26 min
Jul 16, 3:57 PM EDT	Areal Flood Advisory	LMK	Marion, Nelson, Washington	3 hr
Jul 16, 3:59 PM EDT	Areal Flood Advisory	LMK	Anderson, Franklin, Scott, Shelby, Woodford	3 hr
Jul 16, 4:02 PM EDT	Special Weather Statement	LMK	Allen, Barren, Metcalfe, Monroe	43 min
Jul 16, 4:06 PM EDT	Special Weather Statement	LMK	Bourbon, Nicholas	24 min
Jul 16, 4:15 PM EDT	Flash Flood Warning	LMK	Marion	2 hr
Jul 16, 4:17 PM EDT	Special Weather Statement	LMK	Hart	28 min
Jul 16, 4:28 PM EDT	Special Weather Statement	LMK	Nicholas	32 min
Jul 16, 4:46 PM EDT	Special Weather Statement	LMK	Adair, Boyle, Casey, Clinton, Cumberland, Green and 5 more	59 min
Jul 16, 4:52 PM EDT	Special Weather Statement	LMK	Oldham	38 min
Jul 16, 5:28 PM EDT	Severe Thunderstorm Warning	LMK	Adair, Boyle, Casey, Garrard, Lincoln, Marion and 2 more	47 min
Jul 16, 5:41 PM EDT	Areal Flood Advisory	LMK	Adair, Casey, Green, Marion, Russell, Taylor	3 hr
Jul 16, 5:50 PM EDT	Special Weather Statement	LMK	Bullitt	40 min
Jul 16, 6:15 PM EDT	Special Weather Statement	LMK	Boyle, Garrard, Lincoln	45 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every severe thunderstorm 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.