Alert archive / Indiana / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 17, NWS Indianapolis, IN

May 9, 1988Decatur County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 9, 1988, 12:34 PM EST for Decatur County, Indiana. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 9, 1988, 12:34 PM EST (17:34 UTC)
Expired
May 9, 1988, 1:15 PM EST
In force
41 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Decatur County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 9, 12:49 PM ESTHail 1Decatur, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 5.6 hours before the alert went out and 130 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, Dayton/James M C, OH at 12:00Z on 1988-05-09Temperature 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, Dayton/James M C, OH at 12:00Z on 1988-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
May 8, 8:31 PM ESTTornado WarningINDBenton24 min
May 9, 11:55 AM ESTSevere Thunderstorm WarningINDDelaware35 min
May 9, 12:09 PM ESTSevere Thunderstorm WarningINDRush36 min
May 9, 3:54 PM ESTSevere Thunderstorm WarningINDButler, Grayson36 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1988Every severe thunderstorm warning in 1988

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.