Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 3, NWS Louisville, KY

March 28, 1998Orange County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Mar 28, 1998, 5:25 AM EST for Orange County, Indiana. It was in force for 15 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
Mar 28, 1998, 5:25 AM EST (10:25 UTC)
Expired
Mar 28, 1998, 5:40 AM EST
In force
15 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Orange County, IN

The radar

The Louisville radar (KLVX), 79 km from the middle of the area, began a volume at 10:26 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
Mar 28, 2:00 AM ESTTornado WatchSPC4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.4 hours before the alert went out and 253 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 1998-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1998-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2018 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
199 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 281025 RRA
SVRSDF
INC117-281040-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
525 AM EST SAT MAR 28 1998

* SEVERE THUNDERSTORM WARNING FOR
  NORTHERN ORANGE COUNTY - SOUTH CENTRAL INDIANA

* UNTIL 540 AM EST

* SOME LOCATIONS AFFECTED
  ORLEANS BY 530 AM EST
  LEIPSIC BY 530 AM EST

*AT 520 AM EST DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN NORTH
ORANGE COUNTY 10 MILES NORTH OF PAOLI OR 40 NORTHWEST OF LOUISVILLE.
THE STORM WAS MOVING EASTNORTHEAST AT 50 MPH.

THIS IS A DANGEROUS STORM. SEEK SHELTER IMMEDIATELY IN A REINFORCED
BUILDING AND STAY AWAY FROM WINDOWS AND OFF THE TELEPHONE. AVOID
DOWNED POWER LINES.

A TORNADO WATCH IS ALSO IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE NOTICE.

REITMEYER

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.