Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 21, NWS Wilmington, OH

March 28, 1997Carroll County, Kentucky; Switzerland County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Mar 28, 1997, 7:14 PM EST for Carroll County, Kentucky; Switzerland County, Indiana. It was in force for 31 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 28, 1997, 7:14 PM EST (00:14 UTC)
Expired: Mar 28, 1997, 7:45 PM EST
In force: 31 min
Issued by: NWS Wilmington, OH
Area: Whole counties

Counties Switzerland County, IN, Carroll County, KY

The radar

The Louisville radar (KLVX), 114 km from the middle of the area, began a volume at 00:13 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
Mar 28, 7:15 PM EST	Hail 1	Carrollton, KY
Mar 28, 7:30 PM EST	Thunderstorm Wind 50	Vevay, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.2 hours before the alert went out and 134 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: 275 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 282 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILN 290015 RRA
SVRILN
INC155-KYC041-290045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
714 PM EST FRI MAR 28 1997
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST INDIANA
 
   ...SWITZERLAND COUNTY
 
 
IN NORTH KENTUCKY
 
   ...CARROLL COUNTY
 
AT 712 PM EDT...DOPPLER RADAR WAS INDICATING A SEVERE THUNDERSTORM
MOVING INTO WESTERN CARROLL COUNTY. THE STORM WAS MOVING NORTHEAST AT 40
MPH. TOWNS IN THE PATH OF THIS STORM INCLUDE CARROLLTON AND VEVAY.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO
WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING CONDITIONS.
STAY INDOORS AWAY FROM WINDOWS AS THIS STORM MOVES OVERHEAD.
 
LOTT

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 8:05 PM EST	Severe Thunderstorm Warning	ILN	Carroll	25 min
Mar 28, 9:21 PM EST	Severe Thunderstorm Warning	ILN	Carroll, Gallatin, Owen	39 min
Mar 28, 9:23 PM EST	Severe Thunderstorm Warning	ILN	Boone, Kenton	52 min
Mar 28, 9:39 PM EST	Severe Thunderstorm Warning	ILN	Grant	36 min
Mar 28, 9:44 PM EST	Severe Thunderstorm Warning	ILN	Campbell	46 min
Mar 28, 7:37 PM EST	Severe Thunderstorm Warning	ILN	Dearborn, Ohio	38 min
Mar 28, 7:55 PM EST	Severe Thunderstorm Warning	ILN	Ripley	50 min
Mar 28, 8:13 PM EST	Severe Thunderstorm Warning	ILN	Ohio, Switzerland	47 min
Mar 28, 8:13 PM EST	Severe Thunderstorm Warning	ILN	Dearborn	47 min
Mar 28, 8:26 PM EST	Severe Thunderstorm Warning	ILN	Franklin	34 min
Mar 28, 8:39 PM EST	Severe Thunderstorm Warning	ILN	Fayette, Wayne	51 min
Mar 28, 8:51 PM EST	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	54 min
Mar 28, 8:57 PM EST	Severe Thunderstorm Warning	ILN	Union	48 min
Mar 28, 9:01 PM EST	Severe Thunderstorm Warning	ILN	Ohio, Switzerland	59 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1997 Severe Thunderstorm Warnings in Indiana, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.