Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 92, NWS Louisville, KY

May 24, 1998Washington County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at May 24, 1998, 4:00 PM EST for Washington County, Indiana. It was in force for 30 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
May 24, 1998, 4:00 PM EST (21:00 UTC)
Expired
May 24, 1998, 4:30 PM EST
In force
30 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Washington County, IN

The radar

The Louisville radar (KLVX), 71 km from the middle of the area, began a volume at 21:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

IssuedProductOfficeLasted
May 24, 1:30 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.0 hours before the alert went out and 219 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 12:00Z on 1998-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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 12:00Z on 1998-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
8 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

338 
WUUS1 KSDF 242103 RRA
SVRSDF
INC175-242130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
500 PM EDT SUN MAY 24 1998

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN SOUTH CENTRAL INDIANA

* UNTIL 430 PM EST (530 PM EDT)

* AT 500 PM EDT (400 PM CDT)...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A SEVERE THUNDERSTORM NEAR MCKINLEY...35 MILES
NORTHWESTOF LOUISVILLE...MOVING EAST AT 30   MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MILLPORT AT 405 PM EST (505 PM EDT)
  KOSSUTH AT 405 PM EST (505 PM EDT)

THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS.

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, May 24, 11:21 AM EST, 4 hours 39 minutes before
KYZ023>043-045>049-053>057-061>067-070>078-081-082-089>100-
INZ076>079-084-090>092-242215-

CENTRAL KENTUCKY AND SOUTH CENTRAL INDIANA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
NOON EDT SUN MAY 24 1998

THE STORM PREDICTION CENTER HAS INDICATED THAT A SLIGHT RISK OF
SEVERE THUNDERSTORMS EXISTS ACROSS ALL OF CENTRAL KENTUCKY AND
SOUTH CENTRAL INDIANA THIS AFTERNOON AND TONIGHT. MAJOR CITIES
INCLUDED IN THE SLIGHT RISK AREA ARE METRO LOUISVILLE...BARDSTOWN...
ELIZABETHTOWN...BOWLING GREEN...GLASGOW...CAMPBELLSVILLE...
LEXINGTON...AND RICHMOND IN KENTUCKY AND PAOLI AND
SCOTTSBURG IN INDIANA.

VERY UNSTABLE AIR WILL REMAIN IN PLACE ACROSS THE TWO STATE REGION
THIS AFTERNOON AND TONIGHT. A WEAK AND NEARLY STATIONARY FRONTAL
BOUNDARY WILL ALSO REMAIN IN THE REGION AND SERVE AS A FOCUS FOR
THUNDERSTORM DEVELOPMENT.

THE MAIN SEVERE WEATHER THREAT WILL BE DAMAGING WINDS AND LARGE HAIL.
ISOLATED TORNADOES ARE ALSO POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FROM THE NATIONAL WEATHER SERVICE
OR YOUR LOCAL MEDIA OUTLETS FOR THE LATEST INFORMATION ON THIS
WEATHER SITUATION.

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY.

Nearby

Severe Thunderstorm Warnings in Indiana, 1998Every severe thunderstorm warning in 1998

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; radar from the NEXRAD Level II archive.