Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 97, NWS Louisville, KY

April 30, 1997Trimble County, Kentucky; Jefferson County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Apr 30, 1997, 10:32 PM EDT for Trimble County, Kentucky; Jefferson County, Indiana. It was in force for 28 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
Apr 30, 1997, 10:32 PM EDT (02:32 UTC)
Expired
Apr 30, 1997, 11:00 PM EDT
In force
28 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Jefferson County, IN, Trimble County, KY

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 30, 6:30 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.5 hours before the alert went out and 159 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, Cncnati-Daytn, OH at 00:00Z on 1997-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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, Cncnati-Daytn, OH at 00:00Z on 1997-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 321 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
5 J/kg
Mixed-layer CIN
-452 J/kg
Mixed-layer LCL
1959 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
321 m²/s²
0-3 km storm-relative helicity
540 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 010231 RRA
SVRSDF
INC077-KYC223-010300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1032 PM EDT WED APR 30 1997
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM EDT
FOR PERSONS IN THE FOLLOWING LOCATIONS...
 
IN SOUTH INDIANA
 
   ...JEFFERSON COUNTY
 
IN NORTH CENTRAL KENTUCKY
 
   ...TRIMBLE COUNTY
 
AT 1025 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE
THUNDERSTORMS 25 MILES NORTH OF LOUISVILLE FROM NEAR BLOCHER TO NEAR NEW
WASHINGTON. THE STORMS WERE MOVING EAST AT 40 TO 50 MPH.
 
THESE STORMS WILL REACH MADISON...BELLEVIEW...MILTON...AND BEDFORD BY
1045 PM EDT.
 
DAMAGING WINDS ARE LIKELY.
 
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
TWF

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 30, 6:35 PM EDT, 3 hours 57 minutes before
INZ076>079-083-010400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
635 PM EDT WED APR 30 1997

...A TORNADO WATCH IS IN AFFECT FOR PARTS OF SOUTHERN INDIANA UNTIL
12 MIDNIGHT EDT...
A TORNADO WATCH HAS BEEN ISSUED FOR THE FOLLOWING COUNITES OF
SOUTHERN INDIANA...DUBOIS...ORANGE...WASHINGTON...SCOTT...AND
JEFFERSON. STRONG TO SEVERE THUNDERSTORMS WERE DEVELOPING RAPIDLY
ACROSS SOUTHERN ILLINOIS...AND THE POTENTIAL FOR SOME OF THESE
STORMS TO PRODUCE ISOLATED TORNADOES DOES EXIST THIS EVENING.
YOU SHOULD MONITOR THE WEATHER IS EVENING.

MCT
Special weather statement, Apr 30, 10:05 PM EDT, 27 minutes before
INZ076>079-083-010400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1005 PM EDT WED APR 30 1997

...A TORNADO WATCH REMAINS IN AFFECT FOR PARTS OF SOUTHERN INDIANA UNTIL
12 MIDNIGHT EDT FOR DUBOIS/ORANGE/WASHINGTON/SCOTT AND JEFFERSON COUNTIES...
THE LINE OF SEVERE THUNDERSTORMS WITH THE POTENTIAL FOR ISOLATED TORNADOES
WILL PUSH THROUGH SOUTHERN INDIANA OVER THE NEXT 2-4 HOURS. STRONG WINDS
TO 60-70 MPH AND LARGE HAIL...AS WELL AS THE POTENTIAL FOR ISOLATED TORNADOES
ARE POSSIBLE WITH THE STORMS. A STORM SPOTTER IN CRAWFORD COUNTY REPORTED
WINDS TO 67 MPH.

MCT
Local storm report, Apr 30, 10:06 PM EDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1006 PM EDT WED APR 30 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0900 PM    CURBY                     IN   67 MPH TSTM GUST
04/30/97   CRAWFORD                       SPOTTER ALSO SAW FUNNEL
                                          CLOUD THAT NEVER TOUCHED
                                          DOWN
Local storm report, Apr 30, 10:32 PM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1032 PM EDT WED APR 30 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0900 PM    CURBY                     IN   67 MPH TSTM GUST
04/30/97   CRAWFORD                       SPOTTER ALSO SAW FUNNEL
                                          CLOUD THAT NEVER TOUCHED
                                          DOWN

0910 PM    JASPER                    IN   WIND DAMAGE
04/30/97   DUBOIS                         TREES AND POWER LINES DOWN

0925 PM    PAOLI                     IN   WIND DAMAGE
04/30/97   ORANGE                         TREES DOWN

0925 PM    FRENCH LICK               IN   WIND DAMAGE
04/30/97   ORANGE                         TREES DOWN

0930 PM    3 W HORSE BRANCH          KY   WIND DAMAGE
04/30/97   OHIO                           WINDOWS BROKEN IN A
                                          HOME...TREES DAMAGED

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 9:19 PM EDTSevere Thunderstorm WarningLMKOhio41 min
Apr 30, 10:13 PM EDTSevere Thunderstorm WarningLMKGrayson32 min
Apr 30, 10:28 PM EDTSevere Thunderstorm WarningLMKHardin32 min
Apr 30, 10:37 PM EDTSevere Thunderstorm WarningLMKLogan38 min
Apr 30, 10:48 PM EDTSevere Thunderstorm WarningLMKLarue, Nelson42 min
Apr 30, 11:08 PM EDTSevere Thunderstorm WarningLMKSimpson, Warren37 min
Apr 30, 11:19 PM EDTTornado WarningLMKWarren26 min
Apr 30, 11:24 PM EDTSevere Thunderstorm WarningLMKMercer, Washington36 min
Apr 30, 11:33 PM EDTSevere Thunderstorm WarningLMKAllen, Barren42 min
May 1, 12:07 AM EDTSevere Thunderstorm WarningLMKMonroe38 min
Apr 30, 8:58 PM EDTSevere Thunderstorm WarningLMKDubois32 min
Apr 30, 9:17 PM EDTSevere Thunderstorm WarningLMKCrawford, Orange43 min
Apr 30, 9:25 PM EDTSevere Thunderstorm WarningLMKPerry35 min
Apr 30, 9:39 PM EDTTornado WarningLMKCrawford, Perry21 min
Apr 30, 9:57 PM EDTSevere Thunderstorm WarningLMKHarrison, Washington33 min
Apr 30, 10:02 PM EDTSevere Thunderstorm WarningLMKClark, Floyd43 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1997Severe Thunderstorm Warnings in Indiana, 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.