Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 86, NWS Louisville, KY

May 23, 1998Breckinridge County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 23, 1998, 11:26 PM CDT for Breckinridge County, Kentucky. It was in force for 44 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: May 23, 1998, 11:26 PM CDT (04:26 UTC)
Expired: May 24, 1998, 12:10 AM CDT
In force: 44 min
Issued by: NWS Louisville, KY
Area: Whole counties

County Breckinridge County, KY

What was reported inside it

Time	Report	Where	Remark
May 24, 12:07 AM CDT	Thunderstorm Wind 50	Hardinsburg, 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
May 23, 7:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.4 hours before the alert went out and 183 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: 4636 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 984 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 240428 RRA
SVRSDF
KYC027-240510-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1226 AM EDT (1126 PM CDT) SUN MAY 24 1998

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BRECKINRIDGE COUNTY IN NORTH CENTRAL KENTUCKY

* UNTIL 1210 AM CDT (110 AM EDT)

* AT 1225 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR CLOVERPORT OR 40 MILES SOUTHWEST OF
  LOUISVILLE MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HARDINSBURG BY 1240 AM EDT
  HENSLEY BY 1250 AM EDT

GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! A TORNADO
WATCH IS IN EFF(ECT. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

KOCH/KIRKPATRICK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 9:38 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Russell	47 min
May 23, 11:43 PM CDT	Severe Thunderstorm Warning	LMK	Hardin, Meade	42 min
May 24, 12:18 AM CDT	Severe Thunderstorm Warning	LMK	Bullitt, Nelson	47 min
May 24, 12:18 AM CDT	Severe Thunderstorm Warning	LMK	Larue	47 min
May 24, 12:52 AM CDT	Severe Thunderstorm Warning	LMK	Washington	43 min
May 24, 2:01 AM CDT	Severe Thunderstorm Warning	LMK	Madison	34 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1998 Every severe thunderstorm warning in 1998

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.