Alert archive / Kentucky / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 64, NWS Louisville, KY

November 15, 1989Franklin County, Scott County, Woodford County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Nov 15, 1989, 4:46 PM EST for Franklin County, Scott County, Woodford County, Kentucky. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Nov 15, 1989, 4:46 PM EST (21:46 UTC)
Expired
Nov 15, 1989, 5:30 PM EST
In force
44 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Franklin County, KY, Scott County, KY, Woodford 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

Dayton/James M C, OH (KDAY), launched 12:00Z, 9.8 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, Dayton/James M C, OH at 12:00Z on 1989-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 138 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, Dayton/James M C, OH at 12:00Z on 1989-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 square meters per square second.19395878Sfc1 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
138 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 1:12 PM ESTSevere Thunderstorm WarningLMKBreckinridge33 min
Nov 15, 1:57 PM ESTSevere Thunderstorm WarningLMKJefferson33 min
Nov 15, 2:12 PM ESTSevere Thunderstorm WarningLMKBullitt33 min
Nov 15, 2:33 PM ESTSevere Thunderstorm WarningLMKShelby, Spencer42 min
Nov 15, 3:14 PM ESTSevere Thunderstorm WarningLMKBullitt, Hardin, Meade31 min
Nov 15, 3:24 PM ESTSevere Thunderstorm WarningLMKJefferson36 min
Nov 15, 4:39 PM ESTSevere Thunderstorm WarningLMKGreen, Taylor36 min
Nov 15, 4:49 PM ESTSevere Thunderstorm WarningLMKCasey, Lincoln26 min
Nov 15, 5:13 PM ESTSevere Thunderstorm WarningLMKBoyle32 min
Nov 15, 5:27 PM ESTSevere Thunderstorm WarningLMKCumberland33 min
Nov 15, 6:26 PM ESTSevere Thunderstorm WarningLMKMcCreary, Pulaski, Wayne34 min
Nov 15, 12:44 PM ESTSevere Thunderstorm WarningLMKOrange31 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.