Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 54, NWS Indianapolis, IN

May 14, 1986Gibson County, Knox County, Indiana; Wabash County, Illinois

NWS Indianapolis, IN issued this severe thunderstorm warning at May 14, 1986, 7:15 PM CDT for Gibson County, Knox County, Indiana; Wabash County, Illinois. It was in force for 45 min. 3 reports 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 14, 1986, 7:15 PM CDT (00:15 UTC)
Expired
May 14, 1986, 8:00 PM CDT
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Wabash County, IL, Gibson County, IN, Knox 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 14, 7:24 PM CDTHail 0.75Wabash, IL
May 14, 7:35 PM CDTThunderstorm Wind 52Gibson, IN
May 14, 7:46 PM CDTThunderstorm Wind 52Wabash, IL

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

Salem-Leckrone, IL (KSLO), launched 00:00Z, 0.3 hours before the alert went out and 113 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, Salem-Leckrone, IL at 00:00Z on 1986-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 190 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, Salem-Leckrone, IL at 00:00Z on 1986-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
190 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
50 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 15, 2:00 PM CDTSevere Thunderstorm WarningINDVanderburgh30 min
May 15, 3:19 PM CDTSevere Thunderstorm WarningINDLawrence41 min
May 15, 4:16 PM CDTTornado WarningINDGibson, Pike44 min
May 15, 4:29 PM CDTTornado WarningINDPosey, Vanderburgh46 min
May 15, 4:31 PM CDTSevere Thunderstorm WarningINDMadison29 min
May 15, 5:05 PM CDTSevere Thunderstorm WarningINDRandolph, Wayne25 min
May 15, 5:23 PM CDTSevere Thunderstorm WarningINDUnion22 min
May 15, 5:40 PM CDTTornado WarningINDVanderburgh, Warrick35 min
May 15, 6:15 PM CDTTornado WarningINDDubois45 min
May 14, 7:44 PM CDTSevere Thunderstorm WarningINDLawrence46 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1986Severe Thunderstorm Warnings in Illinois, 1986Every severe thunderstorm warning in 1986

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.