Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 66, NWS Louisville, KY

June 29, 2021Perry County, Indiana; Hancock County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 29, 2021, 8:12 PM CDT for Perry County, Indiana; Hancock County, Kentucky. It was in force for 33 min. 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: Jun 29, 2021, 8:12 PM CDT (01:12 UTC)
Expired: Jun 29, 2021, 8:45 PM CDT
In force: 33 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Perry County, IN, Hancock County, KY

The radar

The Louisville radar (KLVX), 75 km from the middle of the area, began a volume at 01:12 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
Jun 29, 8:17 PM CDT	TSTM WND DMG	1 W Tell City, IN	TREES DOWN AROUND THE TELL CITY AREA. ONE TREE ON A CAR IN TELL CITY. NO INJURIES. TIME ESTIMATED FROM RADAR.

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, 1.2 hours before the alert went out and 209 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: 224 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: -11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

044 
WUUS53 KLMK 300112
SVRLMK
INC123-KYC091-300145-
/O.NEW.KLMK.SV.W.0066.210630T0112Z-210630T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
812 PM CDT Tue Jun 29 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Southwestern Perry County in south central Indiana...
  North central Hancock County in central Kentucky...

* Until 845 PM CDT.

* At 812 PM CDT, a severe thunderstorm was located over Tell City,
  moving north at 15 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will remain over mainly rural areas of
  southwestern Perry and north central Hancock Counties, including
  the following locations... Petri, Cannelton, Ranger, Adair, Fenn
  Haven and Troy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3799 8686 3800 8681 3802 8680 3800 8678
      3800 8677 3803 8678 3803 8677 3804 8679
      3806 8677 3808 8678 3810 8677 3810 8668
      3786 8673 3786 8687 3796 8689
TIME...MOT...LOC 0112Z 177DEG 19KT 3795 8678 

HAIL...0.75IN
WIND...60MPH
 
$$

JML

1 follow-up statement

030 
WWUS53 KLMK 300139
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
839 PM CDT Tue Jun 29 2021

INC123-KYC091-300149-
/O.EXP.KLMK.SV.W.0066.000000T0000Z-210630T0145Z/
Perry IN-Hancock KY-
839 PM CDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN PERRY AND NORTH
CENTRAL HANCOCK COUNTIES WILL EXPIRE AT 845 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3799 8686 3800 8681 3802 8680 3800 8678
      3800 8677 3803 8678 3803 8677 3804 8679
      3806 8677 3808 8678 3810 8677 3810 8668
      3786 8673 3786 8687 3796 8689
TIME...MOT...LOC 0139Z 177DEG 19KT 3808 8679 

$$

JML

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:21 PM CDT	Special Weather Statement	LMK	Crawford	24 min
Jun 29, 7:25 PM CDT	Special Weather Statement	LMK	Orange	35 min
Jun 29, 7:40 PM CDT	Special Weather Statement	LMK	Perry	35 min
Jun 29, 8:10 PM CDT	Special Weather Statement	LMK	Crawford	35 min
Jun 29, 8:21 PM CDT	Special Weather Statement	LMK	Dubois	24 min
Jun 29, 8:43 PM CDT	Special Weather Statement	LMK	Dubois	47 min
Jun 29, 8:53 PM CDT	Severe Thunderstorm Warning	LMK	Dubois, Orange	37 min
Jun 29, 8:59 PM CDT	Severe Thunderstorm Warning	LMK	Dubois, Perry	31 min
Jun 29, 7:04 PM CDT	Special Weather Statement	LMK	Ohio	26 min
Jun 29, 7:09 PM CDT	Severe Thunderstorm Warning	LMK	Ohio	36 min
Jun 29, 7:14 PM CDT	Special Weather Statement	LMK	Cumberland	31 min
Jun 29, 7:25 PM CDT	Special Weather Statement	LMK	Grayson	35 min
Jun 29, 8:03 PM CDT	Special Weather Statement	LMK	Hancock	27 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.