Alert archive / Indiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Wilmington, OH

April 20, 1996Fayette County, Union County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 20, 1996, 1:24 AM EST for Fayette County, Union County, Indiana. It was in force for 36 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
Apr 20, 1996, 1:24 AM EST (06:24 UTC)
Expired
Apr 20, 1996, 2:00 AM EST
In force
36 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Fayette County, IN, Union County, IN

The radar

The Indianapolis radar (KIND), 105 km from the middle of the area, began a volume at 06:24 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.4 hours before the alert went out and 110 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 1996-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1144 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, Cncnati-Daytn, OH at 00:00Z on 1996-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897117Sfc1 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
1144 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILN 200634
SVRILN
INC041-161-200700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
224 AM EDT (124 AM EST) SAT APR 20 1996
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM EDT (200 AM EST)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL INDIANA
 
   ...FAYETTE COUNTY...UNION COUNTY
 
AT 130 AM EST NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM NEAR THE TOWN OF LAUREL MOVING EAST NORTHEAST AT 40 MPH.
SOME TOWNS IN THE PATH OF THIS STORM ARE EVERTON...ROSEBURG AND
LIBERTY.  BE PREPARED FOR DAMAGING WINDS AND LARGE HAIL.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO
WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING CONDITIONS.
STAY INDOORS AWAY FROM WINDOWS AS THIS STORM MOVES OVERHEAD.
 
SANDLER

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 7:54 PM ESTTornado WarningILNFayette, Union, Wayne66 min
Apr 19, 8:59 PM ESTSevere Thunderstorm WarningILNUnion, Wayne31 min
Apr 20, 1:13 AM ESTSevere Thunderstorm WarningILNFranklin47 min
Apr 20, 1:17 AM ESTSevere Thunderstorm WarningILNSwitzerland43 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1996Every severe thunderstorm warning in 1996

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.