Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 101, NWS Indianapolis, IN

June 28, 1998Morgan County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 28, 1998, 7:06 PM EST for Morgan County, Indiana. It was in force for 34 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
Jun 28, 1998, 7:06 PM EST (00:06 UTC)
Expired
Jun 28, 1998, 7:40 PM EST
In force
34 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Morgan County, IN

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 198 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, Lincoln, IL at 00:00Z on 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3145 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, Lincoln, IL at 00:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
3145 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1452 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 7:42 PM ESTSevere Thunderstorm WarningINDOwen33 min
Jun 28, 8:21 PM ESTSevere Thunderstorm WarningINDOwen34 min
Jun 28, 8:44 PM ESTFlash Flood WarningINDOwen4 hr
Jun 28, 9:07 PM ESTSevere Thunderstorm WarningINDOwen63 min
Jun 28, 9:25 PM ESTSevere Thunderstorm WarningINDClay, Vigo45 min
Jun 28, 10:12 PM ESTSevere Thunderstorm WarningINDOwen48 min
Jun 29, 12:54 AM ESTFlash Flood WarningINDOwen8 hr
Jun 29, 6:05 PM ESTSevere Thunderstorm WarningINDVermillion, Warren50 min
Jun 29, 6:44 PM ESTSevere Thunderstorm WarningINDFountain, Parke51 min
Jun 29, 6:44 PM ESTSevere Thunderstorm WarningINDVigo51 min
Jun 29, 6:56 PM ESTSevere Thunderstorm WarningINDTippecanoe34 min

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.