Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Louisville, KY

April 8, 1998Shelby County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Apr 8, 1998, 3:16 PM EDT for Shelby County, Kentucky. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 8, 1998, 3:16 PM EDT (19:16 UTC)
Expired
Apr 8, 1998, 3:45 PM EDT
In force
29 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Shelby County, KY

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 8, 1:15 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.3 hours before the alert went out and 181 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 1998-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 1998-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
55 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 081916 RRA
SVRSDF
KYC211-081945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
316 PM EDT WED APR 8 1998

* SEVERE THUNDERSTORM WARNING FOR
  SHELBY COUNTY - NORTH CENTRAL KENTUCKY

* UNTIL 345 PM EDT

* SOME LOCATIONS AFFECTED
  FINCHVILLE BY 325 PM EDT
  SHELBYVILLE BY 330 PM EDT

* AT 315 PM EDT...RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS
NEAR THE SHELBY/SPENCER COUNTY LINE...OR 20 MILES EAST OF LOUISVILLE.
THIS CLUSTER OF STORMS WAS MOVING NORTHEAST AT 50 MPH.

LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH THIS CLUSTER OF
STORMS.

IF YOU ARE OUTSIDE OR IN THE PATH OF THIS STORM...SEEK SHELTER
INSIDE A STRONG BUILDING. AVOID WINDOWS AND STAY OFF THE TELEPHONE
UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS ALSO IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE NOTICE.

REC/DK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 2:29 AM EDTSevere Thunderstorm WarningLMKLogan46 min
Apr 8, 2:33 AM EDTTornado WarningLMKLogan47 min
Apr 8, 2:51 AM EDTSevere Thunderstorm WarningLMKWarren39 min
Apr 8, 3:02 AM EDTSevere Thunderstorm WarningLMKTrimble33 min
Apr 8, 3:15 AM EDTTornado WarningLMKEdmonson30 min
Apr 8, 3:28 AM EDTSevere Thunderstorm WarningLMKSimpson32 min
Apr 8, 3:33 AM EDTSevere Thunderstorm WarningLMKBarren32 min
Apr 8, 3:33 AM EDTTornado WarningLMKHart32 min
Apr 8, 3:39 AM EDTTornado WarningLMKBarren31 min
Apr 8, 3:49 AM EDTSevere Thunderstorm WarningLMKAllen31 min
Apr 8, 3:57 AM EDTTornado WarningLMKGreen, Metcalfe23 min
Apr 8, 4:23 AM EDTSevere Thunderstorm WarningLMKAdair32 min
Apr 8, 1:04 PM EDTSevere Thunderstorm WarningLMKButler, Warren31 min
Apr 8, 1:28 PM EDTSevere Thunderstorm WarningLMKEdmonson17 min
Apr 8, 1:33 PM EDTSevere Thunderstorm WarningLMKGrayson, Ohio27 min
Apr 8, 2:05 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hardin25 min
Apr 8, 2:35 PM EDTSevere Thunderstorm WarningLMKHardin, Meade30 min
Apr 8, 2:35 PM EDTSevere Thunderstorm WarningLMKBullitt30 min
Apr 8, 2:53 PM EDTTornado WarningLMKBoyle, Mercer22 min
Apr 8, 2:58 PM EDTSevere Thunderstorm WarningLMKJefferson, Spencer32 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1998Every 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; the sounding from the Mesonet's radiosonde archive.