Alert archive / Kentucky / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Louisville, KY

April 26, 1989Garrard County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Apr 26, 1989, 8:44 PM EDT for Garrard County, Kentucky. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Apr 26, 1989, 8:44 PM EDT (00:44 UTC)
Expired
Apr 26, 1989, 9:30 PM EDT
In force
46 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Garrard County, KY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Huntington/Tri S, WV (KHTS), launched 00:00Z, 0.7 hours before the alert went out and 196 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, Huntington/Tri S, WV at 00:00Z on 1989-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 354 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, Huntington/Tri S, WV at 00:00Z on 1989-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.193958Sfc1 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
354 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1173 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLEX 270045
SVRLEX
KYC079-270130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LEXINGTON KY
844 PM EDT WED APR 26 1989
 
THE NATIONAL WEATHER SERVICE IN LEXINGTON HAS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 8:51 PM EDTFlash Flood WarningLMKJefferson, Shelby, Spencer3 hr
Apr 26, 9:49 PM EDTFlash Flood WarningLMKGarrard, Jessamine, Mercer56 min
Apr 26, 9:49 PM EDTSevere Thunderstorm WarningLMKGarrard, Jessamine, Mercer56 min
Apr 26, 10:12 PM EDTSevere Thunderstorm WarningLMKShelby, Spencer63 min
Apr 26, 10:23 PM EDTSevere Thunderstorm WarningLMKJefferson, Oldham62 min
Apr 26, 10:49 PM EDTSevere Thunderstorm WarningLMKBullitt56 min
Apr 26, 11:20 PM EDTSevere Thunderstorm WarningLMKNelson, Spencer45 min
Apr 27, 6:41 AM EDTSevere Thunderstorm WarningLMKRowan34 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1989Every severe thunderstorm warning in 1989

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.