Alert archive / Indiana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 70, NWS Indianapolis, IN

May 25, 1996Knox County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 25, 1996, 10:27 PM EST for Knox County, Indiana. It was in force for 48 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
May 25, 1996, 10:27 PM EST (03:27 UTC)
Expired
May 25, 1996, 11:15 PM EST
In force
48 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Knox County, IN

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.5 hours before the alert went out and 192 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 1996-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Lincoln, IL at 00:00Z on 1996-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 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
13 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 260330
SVRIND
INC083-260415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1027 PM EST SAT MAY 25 1996
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST INDIANA
 
   ...SOUTHERN KNOX COUNTY
 
AT 1025 PM...RADAR HAD A SEVERE THUNDERSTORM 20 MILES SOUTHWEST OF
VINCENNES. THE STORM WAS MOVING SOUTHEAST TOWARD DECKER. PEOPLE IN THE
PATH OF THIS STORM SHOULD STAY INDOORS UNTIL THIS STORM PASSES.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR 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, May 25, 7:40 PM EST, 2 hours 47 minutes before
INZ060-061-067>069-081>083-085>089-260600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
741 PM EST SAT MAY 25 1996

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF SOUTHWEST
INDIANA UNTIL 100 AM EST...

THE WATCH IS SOUTH OF A LINE FROM 10 MILES NORTHWEST OF SULLIVAN TO
10 MILES WEST OF BLOOMINGTON AND WEST OF A LINE FROM 10 MILES WEST OF
BLOOMINGTON TO 10 MILES EAST OF TELL CITY. SOME COMMUNITIES IN THE
WATCH ARE SULLIVAN...LINTON...VINCENNES...WASHINGTON...EVANSVILLE...
JASPER AND TELL CITY.

REMEMBER A WATCH MEANS SEVERE THUNDERSTORMS WITH DANGEROUS
LIGHTNING...LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE
IN AND NEAR THE WATCH AREA. LISTEN F"OR LATER STATEMENTS AND POSSIBLE
WARNINGS.

AT 735 PM...AN AREA OF THUNDERSTORMS WAS NEAR ST LOUIS. IT WAS MOVING
EAST AND SHOULD REACH WEST CENTRAL AND SOUTHWEST INDIANA AROUND 1000
PM.

DS
Special weather statement, May 25, 9:01 PM EST, 1 hour 26 minutes before
INZ028-029-035-036-043>045-051>053-060-061-067>069-081>083-085>089-
260300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
901 PM EST SAT MAY 25 1996

...A SEVERE THUNDERSTORM WATCH CONTINUES OVER PARTS OF SOUTHWEST
INDIANA UNTIL 100 AM EST...

AT 855 PM...THUNDERSTORMS WERE MOVING EAST ACROSS SOUTH ILLINOIS.
THEY SHOULD REACH WEST CENTRAL AND SOUTHWEST INDIANA BETWEEN 930 AND
1030 PM EST.

REMEMBER A WATCH MEANS SEVERE THUNDERSTORMS WITH DANGEROUS
LIGHTNING...LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE
IN AND NEAR THE WATCH AREA. LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

DS
Special weather statement, May 25, 9:49 PM EST, 38 minutes before
INZ028-029-035-036-043>045-051>053-060-061-067>069-081>083-085>089-
260400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
950 PM EST SAT MAY 25 1996

...A SEVERE THUNDERSTORM WATCH CONTINUES OVER PARTS OF SOUTHWEST
INDIANA UNTIL 100 AM EST...

AT 945 PM...THUNDERSTORMS WERE MOVING EAST ACROSS EAST CENTRAL ILLINOIS.
THESE THUNDERSTORMS WILL REACH TERRE HAUTE BETWEN 1000 AND 1015 PM AND
WILL REACH VINCENNES AROUND 1045 PM EST. THESE STORMS WILL PRODUCE
STRONG GUSTY WINDS...VERY HEAVY RAINS AND POSSIBLE HAIL.

REMEMBER A WATCH MEANS SEVERE THUNDERSTORMS WITH DANGEROUS
LIGHTNING...LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE
IN AND NEAR THE WATCH AREA. LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

RPG

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 4:49 PM ESTSevere Thunderstorm WarningINDDaviess, Knox41 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.