Alert archive / Kentucky / Tornado Warnings in 1991

Tornado Warning 1, NWS Wilmington, OH

April 9, 1991Campbell County, Kenton County, Kentucky

NWS Wilmington, OH issued this tornado warning at Apr 9, 1991, 3:54 PM EDT for Campbell County, Kenton County, Kentucky. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1991, 3:54 PM EDT (19:54 UTC)
Expired
Apr 9, 1991, 4:30 PM EDT
In force
36 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Campbell County, KY, Kenton County, KY

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 7.9 hours before the alert went out and 109 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 1991-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 471 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 1991-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 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
471 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

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 Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 3:28 PM EDTSevere Thunderstorm WarningILNButler62 min
Apr 9, 3:32 PM EDTSevere Thunderstorm WarningILNPreble58 min
Apr 9, 3:43 PM EDTSevere Thunderstorm WarningILNHamilton62 min
Apr 9, 3:48 PM EDTSevere Thunderstorm WarningILNMontgomery57 min
Apr 9, 4:09 PM EDTSevere Thunderstorm WarningILNClermont, Clinton, Warren66 min
Apr 9, 2:26 PM EDTSevere Thunderstorm WarningILNSwitzerland64 min

Nearby

Tornado Warnings in Kentucky, 1991Every tornado warning in 1991Tornadoes in 1991

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.