Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 171, NWS Louisville, KY

August 25, 1997Breckinridge County, Grayson County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Aug 25, 1997, 8:14 AM CDT for Breckinridge County, Grayson County, Kentucky. It was in force for 31 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
Aug 25, 1997, 8:14 AM CDT (13:14 UTC)
Expired
Aug 25, 1997, 8:45 AM CDT
In force
31 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Breckinridge County, KY, Grayson County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 1.2 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 1997-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Nashville Metro, TN at 12:00Z on 1997-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939587897Sfc1 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
3 J/kg
Mixed-layer CIN
-400 J/kg
Mixed-layer LCL
1223 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Aug 25, 6:53 AM CDTSevere Thunderstorm WarningLMKJessamine, Mercer, Woodford32 min
Aug 25, 7:20 AM CDTSevere Thunderstorm WarningLMKBreckinridge35 min
Aug 25, 8:22 AM CDTSevere Thunderstorm WarningLMKBoyle18 min
Aug 25, 8:33 AM CDTSevere Thunderstorm WarningLMKLincoln27 min
Aug 25, 9:04 AM CDTSevere Thunderstorm WarningLMKLincoln11 min
Aug 25, 9:32 AM CDTSevere Thunderstorm WarningLMKGrayson28 min
Aug 25, 10:07 AM CDTSevere Thunderstorm WarningLMKGrayson, Hart33 min
Aug 25, 11:33 AM CDTSevere Thunderstorm WarningLMKHart27 min
Aug 25, 12:01 PM CDTSevere Thunderstorm WarningLMKHart29 min
Aug 25, 12:17 PM CDTSevere Thunderstorm WarningLMKBarren33 min
Aug 25, 9:52 AM CDTSevere Thunderstorm WarningLMKDubois33 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1997Every 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; the sounding from the Mesonet's radiosonde archive.