Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 170, NWS Louisville, KY

August 25, 1997Perry County, Indiana; Breckinridge County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Aug 25, 1997, 7:20 AM EST for Perry County, Indiana; Breckinridge County, Kentucky. It was in force for 35 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, 7:20 AM EST (12:20 UTC)
Expired
Aug 25, 1997, 7:55 AM EST
In force
35 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Perry County, IN, Breckinridge County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.3 hours before the alert went out and 200 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

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

000 
TTAA00 KSDF 251220 RRA
SVRSDF
INC123-KYC027-251255-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
820 AM EDT (720 AM CDT) MON AUG 25 1997

* SEVERE THUNDERSTORM WARNING FOR
  BRECKINRIDGE COUNTY - NORTH CENTRAL KENTUCKY
  SOUTHERN PERRY COUNTY - SOUTH CENTRAL INDIANA

* UNTIL 755 AM CDT (755 AM EST OR 855 AM EDT)
 
* SOME LOCATIONS AFFECTED
  ROME BY 730 AM CDT 
  SAMPLE BY 735 AM CDT 
  HARDINSBURG BY 740 AM CDT

* AT 718 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR
LILLY DALE...WHICH IS 30 MILES WEST OF LOUISIVLLE. THE STORM IS MOVING
SOUTHEAST AT 30 MPH.

LARGE HAIL IS POSSIBLE WITH THIS STORM.

IF YOU ARE OUTSIDE OR IN THE PATH OF THIS FSTORM...SEEK SHELTER INSIDE
A STRONG BUILDING. AVOID WINDOWS AND STAY OFF THE TELEPHONE UNTIL
THE STORM HAS PASSED.



DEWALD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 9:52 AM ESTSevere Thunderstorm WarningLMKDubois33 min
Aug 25, 6:53 AM ESTSevere Thunderstorm WarningLMKJessamine, Mercer, Woodford32 min
Aug 25, 8:14 AM ESTSevere Thunderstorm WarningLMKBreckinridge, Grayson31 min
Aug 25, 8:22 AM ESTSevere Thunderstorm WarningLMKBoyle18 min
Aug 25, 8:33 AM ESTSevere Thunderstorm WarningLMKLincoln27 min
Aug 25, 9:04 AM ESTSevere Thunderstorm WarningLMKLincoln11 min
Aug 25, 9:32 AM ESTSevere Thunderstorm WarningLMKGrayson28 min
Aug 25, 10:07 AM ESTSevere Thunderstorm WarningLMKGrayson, Hart33 min
Aug 25, 11:33 AM ESTSevere Thunderstorm WarningLMKHart27 min
Aug 25, 12:01 PM ESTSevere Thunderstorm WarningLMKHart29 min
Aug 25, 12:17 PM ESTSevere Thunderstorm WarningLMKBarren33 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1997Severe 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.