Alert archive / Indiana / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 64, NWS Indianapolis, IN

August 18, 1988LaPorte County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 18, 1988, 6:43 PM CDT for LaPorte County, Indiana. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Aug 18, 1988, 6:43 PM CDT (23:43 UTC)
Expired
Aug 18, 1988, 7:30 PM CDT
In force
47 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County LaPorte County, IN

The radar

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

The nearest sounding before it

Peoria Regional, IL (KPIA), launched 12:00Z, 11.7 hours before the alert went out and 259 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, Peoria Regional, IL at 12:00Z on 1988-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2579 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, Peoria Regional, IL at 12:00Z on 1988-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.193958Sfc1 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
2579 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1449 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-18 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
Aug 18, 4:38 PM CDTSevere Thunderstorm WarningINDMiami25 min
Aug 18, 4:38 PM CDTSevere Thunderstorm WarningINDWhite52 min
Aug 18, 5:17 PM CDTSevere Thunderstorm WarningINDLaPorte, Starke43 min
Aug 18, 5:23 PM CDTSevere Thunderstorm WarningINDKosciusko37 min
Aug 18, 6:25 PM CDTSevere Thunderstorm WarningINDWhite50 min
Aug 18, 6:30 PM CDTSevere Thunderstorm WarningINDBerrien45 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; the sounding from the Mesonet's radiosonde archive.