Alert archive / Indiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 36, NWS Indianapolis, IN

April 21, 1996Howard County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 21, 1996, 11:40 PM EST for Howard County, Indiana. It was in force for 35 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 21, 1996, 11:40 PM EST (04:40 UTC)
Expired
Apr 22, 1996, 12:15 AM EST
In force
35 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Howard County, IN

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.7 hours before the alert went out and 214 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 1996-04-22Temperature 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, Lincoln, IL at 00:00Z on 1996-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2648 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
419 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 220440
SVRIND
INC067-220515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1140 PM EST SUN APR 21 1996
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL INDIANA
 
   ...WESTERN HOWARD COUNTY
 
AT 1140 PM...A SEVERE THUNDERSTORM WITH LARGE HAIL WAS JUST NORTH OF
FRANKFORT AND MOVING NORTHEAST TOWARD RIDGEWAY. GOLFBALL SIZE HAIL HAS
BEEN REPORTED WITH THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN IN~TERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
DS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 21, 8:13 PM EST, 3 hours 27 minutes before
INZ061-068>070-220230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
812 PM EST SUN APR 21 1996

...STRONG THUNDERSTORM APPROACHING SOUTHERN DAVIESS AND SOUTHWEST
MARTIN COUNTIES...

AT 810 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A STRONG
THUNDERSTORM MOVING THROUGH NORTHERN PIKE COUNTY. THIS THUNDERSTORM
WAS MOVING NORTHEAST AT 20 MPH. THIS STORM WILL MOVE INTO SOUTHEAST
DAVIESS COUNTY BY 825 PM EST.

THIS THUNDERSTORM MAY PRODUCE STRONG WINDS OF 30 TO 40 MPH...SMALL
HAIL AND HEAVY RAIN. BE PREPARED TO MOVE INDOORS IF THIS STORM
APPROACHES YOUR AREA.

LASHLEY
Special weather statement, Apr 21, 9:04 PM EST, 2 hours 36 minutes before
INZ043>045-051>053-060-061-067-068-220330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
903 PM EST SUN APR 21 1996

...STRONG THUNDERSTORM APPROACHING SULLIVAN COUNTY AND NORTHWEST KNOX
COUNTY...

AT 859 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A STRONG
THUNDERSTORM IN EAST CENTRAL ILLINOIS...MOVING TOWARD SULLIVAN COUNTY
AND NORTHWEST KNOX COUNTY. THIS THUNDERSTORM WAS MOVING NORTHEAST AT
35 MPH. THE LEADING EDGE OF THIS STORM WILL MOVE INTO THESE COUNTIES
BY 910 PM EST.

THIS THUNDERSTORM MAY PRODUCE STRONG WINDS OF 30 TO 40 MPH...SMALL
HAIL AND HEAVY RAIN. BE PREPARED TO MOVE INDOORS IF THIS STORM
APPROACHES YOUR AREA.

LASHLEY
Special weather statement, Apr 21, 9:34 PM EST, 2 hours 6 minutes before
INZ051>053-060-061-220330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
934 PM EST SUN APR 21 1996

...STRONG THUNDERSTORMS WERE SOUTH OF TERRE HAUTE...

THE STORMS WERE 25 MILES SOUTHWEST OF TERRE HAUTE AND JUST NORTH AND
NORTHEAST OF SULLIVAN. THEY WERE MOVING NORTHEAST TOWARD TERRE
HAUTE...SALINE CITY AND CLAY CITY. THE STORMS SHOULD BE MOVING INTO
THOSE COMMUNITIES TOWARD 1000 PM.

THESE STORMS WILL HAVE DANGEROUS LIGHTvNING AND HEAVY RAINFALL. HAIL
AND STRONG WINDS ARE ALSO POSSIBLE.

DS
Special weather statement, Apr 21, 10:03 PM EST, 1 hour 37 minutes before
INZ043>045-051>053-220330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1003 PM EST SUN APR 21 1996

...STRONG THUNDERSTORMS WERE AROUND TERRE HAUTE...

AT 955 PM...THE STORMS WERE JUST NORTHWEST OF TERRE HAUTE...AND
AROUND SALINE CITY AND CENTER POINT. THEY WERE MOVING NORTHEAST AND
SHOULD BE NEAR ROCKVILLE...GREENCASTLE AND CLOVERDALE TOWARD 1030 PM.

THESE STORMS WILL HAVE DANGEROUS LIGHTNING AND BRIEF HEAVY RAINFALL.
SMALL HAIL IS LIKELY AND STRONG WINDS ARE POSSIBLE.

DS
Special weather statement, Apr 21, 10:29 PM EST, 1 hour 11 minutes before
INZ029-030-035>040-043>048-051>056-220435-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1028 PM EST SUN APR 21 1996

...STRONG THUNDERSTORMS APPROACHING SOUTHERN HENDRICKS COUNTY AND
SOUTHERN MONTGOMERY COUNTY...

AT 1025 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A STRONG
THUNDERSTORM IN SOUTHEAST PUTNAM COUNTY...ABOUT 5 MILES NORTHEAST OF
CLOVERDALE...OR 35 MILES SOUTHWEST OF INDIANAPOLIS. THIS THUNDERSTORM
WAS MOVING NORTHEAST AT 40 MPH AND WILL ENTER SOUTHWEST HENDRICKS
COUNTY BY 1035 PM EST.

ANOTHER STRONG THUNDERSTORM WAS ABOUT 5 MILES SOUTHWEST OF ROCKVILLE
...OR 19 MILES NORTH OF TERRE HAUTE. THIS STORM WAS MOVING NORTHEAST
AT 40 MPH AND WILL MOVE INTO SOUTHWEST MONTGOMERY COUNTY BY 1040 PM
EST AND INTO CRAWFORDSVILLE BY 1050 PM EST.

THESE THUNDERSTORMS MAY PRODUCE STRONG WINDS OF 30 TO 40 MPH...PEA TO
DIME SIZE HAIL AND HEAVY RAIN. BE PREPARED TO MOVE INDOORS IF THESE
STORMS APPROACH YOURr AREA.

LASHLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 11:06 PM ESTSevere Thunderstorm WarningINDBoone, Clinton, Montgomery39 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.