Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 45, NWS Louisville, KY

March 28, 1997Grayson County, Hardin County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Mar 28, 1997, 5:37 PM CST for Grayson County, Hardin County, Kentucky. It was in force for 38 min. 1 report 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, 5:37 PM CST (23:37 UTC)
Expired: Mar 28, 1997, 6:15 PM CST
In force: 38 min
Issued by: NWS Louisville, KY
Area: Whole counties

Counties Grayson County, KY, Hardin County, KY

The radar

The Louisville radar (KLVX), 48 km from the middle of the area, began a volume at 23:38 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, 5:45 PM CST	Tornado F1	Rineyville, KY

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 28, 5:00 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.6 hours before the alert went out and 166 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 554 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 287 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 282337 RRA
SVRSDF
KYC093-085-290015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
637 PM EST (537 PM CST) FRI MAR 28 1997
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM EST (615 PM CST)
FOR PERSONS IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL KENTUCKY
 
   ...HARDIN COUNTY
 
IN SOUTH CENTRAL KENTUCKY
 
   ...EASTERN GRAYSON COUNTY
 
AT 634 PM EST...NWS DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS 50
MILES SOUTHWEST OF LOUISVILLE...AND ALSO 30 MILES NORTHEAST OF BOWLING
GREEN. OTHER SEVERE THUNDERSTORMS CONTINUE IN THE VINE GROVE AREA AND
ACROSS THE NORTHERN HALF OF HARDIN COUNTY.
 
THESE STORMS ARE MOVING NORTHEAST AT 30 MPH...AND WILL CONTINUE TO
AFFECT CLARKSON AND BIG CLIFTY IN GRAYSON COUNTY IMMEDIATELY. OTHER
STORMS WILL CONTINUE TO AFFECT RINEYVILLE AND VINEGROVE IMMEDIATELY...
AND ELIZABETHTOWN THROUGH 650 PM EST.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
TF/VLD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 4:33 PM CST	Severe Thunderstorm Warning	LMK	Breckinridge	42 min
Mar 28, 4:52 PM CST	Severe Thunderstorm Warning	LMK	Grayson	38 min
Mar 28, 5:01 PM CST	Severe Thunderstorm Warning	LMK	Hardin	44 min
Mar 28, 5:15 PM CST	Severe Thunderstorm Warning	LMK	Logan	30 min
Mar 28, 5:15 PM CST	Severe Thunderstorm Warning	LMK	Bullitt	45 min
Mar 28, 5:26 PM CST	Severe Thunderstorm Warning	LMK	Edmonson, Warren	34 min
Mar 28, 5:46 PM CST	Tornado Warning	LMK	Hardin	29 min
Mar 28, 5:49 PM CST	Severe Thunderstorm Warning	LMK	Hart	41 min
Mar 28, 5:59 PM CST	Severe Thunderstorm Warning	LMK	Larue, Nelson, Spencer	46 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 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.