Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 1, NWS Louisville, KY

January 4, 1997Marion County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jan 4, 1997, 11:49 PM EST for Marion County, Kentucky. It was in force for 21 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 4, 1997, 11:49 PM EST (04:49 UTC)
Expired
Jan 5, 1997, 12:10 AM EST
In force
21 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Marion County, KY

What was reported inside it

TimeReportWhereRemark
Jan 4, 11:55 PM ESTThunderstorm Wind 50Eastern Parts, KY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.8 hours before the alert went out and 198 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 00:00Z on 1997-01-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 153 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 00:00Z on 1997-01-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 426 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
153 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
426 m²/s²
0-3 km storm-relative helicity
479 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

209 
WUUS1 KSDF 050446 RRA
SVRSDF
KYC155-050510-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1049 PM CST SAT JAN 4 1997
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1110 PM CST
FOR PERSONS IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL KENTUCKY
 
   ...EASTERN MARION COUNTY
 
AT 10:35 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 6 MILES WEST OF LEBANON KENTUCKY. THIS THUNDERSTORM
WAS MOVING EAST AT 30 MPH AND WILL REACH LEABANON BY 11 PM CST.
THIS THUNDERSTORM IS CAPABLE OF PRODUCING WINDS OF GREATER THAN
58 MPH.
 
WHEN THUNDERSTORMS OCCUR...MOVE INSIDE A STRONG BUILDING.  GO TO
THE INTERIOR SECTION...OR PREFERABLY A BASEMENT OR LOWEST LEVEL
IF POSSIBLE.  DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. STAY AWAY FROM
ALL DOWNED WIRES.
 
WHW

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.