Alert archive / Kentucky / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 101, NWS Louisville, KY

April 30, 1997Mercer County, Washington County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Apr 30, 1997, 11:24 PM EDT for Mercer County, Washington County, Kentucky. It was in force for 36 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, 11:24 PM EDT (03:24 UTC)
Expired
May 1, 1997, 12:00 AM EDT
In force
36 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Mercer County, KY, Washington 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, 10:45 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.4 hours before the alert went out and 212 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 010322 RRA
SVRSDF
KYC167-229-010400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1124 PM EDT WED APR 30 1997
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT EDT
FOR PERSONS IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL KENTUCKY
 
   ...MERCER COUNTY
 
IN NORTH CENTRAL KENTUCKY
 
   ...WASHINGTON COUNTY
 
AT 1120 PM EDT WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 30
MILES SOUTHEAST OF LOUISVILLE ACROSS WEST WASHINGTON COUNTY.
 
THE STORM WAS MOVING TO THE EAST AT 45 MPH.
 
LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM.
 
SOME CITIES IN THE PATH OF THIS STORM ARE SPRINGFIELD...MACKVILLE
...AND WILLISBURG BY 1130 PM EDT...AND HARRODSBURG AND MCAFEE BY
1145 PM EDT.
 
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.
 
 
RNK

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, 4 hours 49 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, 1 hour 19 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, 1 hour 18 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, 52 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
Local storm report, Apr 30, 10:55 PM EDT, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1055 PM EDT WED APR 30 1997

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

1010 PM    BRANCHVILLE               IN   WIND DAMAGE
04/30/97   PERRY                          TREES AND POWER LINES DOWN

1010 PM    CORYDON                   IN   WIND DAMAGE
04/30/97   HARRISON                       TREES AND POWER LINES DOWN
Local storm report, Apr 30, 11:13 PM EDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1113 PM EDT WED APR 30 1997

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

1010 PM    BRANCHVILLE               IN   WIND DAMAGE
04/30/97   PERRY                          TREES AND POWER LINES DOWN

1010 PM    CORYDON                   IN   WIND DAMAGE
04/30/97   HARRISON                       TREES AND POWER LINES DOWN

1015 PM    PEKIN                     IN   WIND DAMAGE
04/30/97   WASHINGTON                     TREES AND POWER LINES
                                          DOWNS IN NUMEROUS
                                          LOCATIONS

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, 10:32 PM EDTSevere Thunderstorm WarningLMKTrimble28 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, 11:33 PM EDTSevere Thunderstorm WarningLMKAllen, Barren42 min
May 1, 12:07 AM EDTSevere Thunderstorm WarningLMKMonroe38 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.