Alert archive / Indiana / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 177, NWS Indianapolis, IN

July 20, 1994Cass County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 20, 1994, 3:49 PM EST for Cass County, Indiana. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Jul 20, 1994, 3:49 PM EST (20:49 UTC)
Expired
Jul 20, 1994, 4:45 PM EST
In force
56 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Cass County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 8.8 hours before the alert went out and 206 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, Dayton/James M C, OH at 12:00Z on 1994-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1594 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, Dayton/James M C, OH at 12:00Z on 1994-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
1594 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1081 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
5 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 202050 RRA
SVRIND
INC017-202145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
349 PM EST WED JUL 20 1994
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL INDIANA
 
   ...CASS COUNTY
 
AT 350 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM SOUTHWEST OF
LOGANSPORT IN CASS COUNTY. THIS THUNDERSTORM IS MOVING TO THE NORTHEAST
AROUND AROUND 20 MILES AN HOUR. THIS STORM WILL PASS NEAR THE CITY OF
LOGANSPORT.
 
 
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.
 
MES

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, Jul 20, 2:06 PM EST, 1 hour 43 minutes before
INZ028-029-035-036-043>045-051>053-202010-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
206 PM EST WED JUL 20 1994

...STRONG THUNDERSTORMS OVER WEST CENTRAL INDIANA...

AT 200 PM WEATHER RADAR INDICATED AN AREA OF THUNDERSTORMS DEVELOPING
FROM JUST SOUTH OF LAFAYETTE TO ABOUT 20 MILES NORTHWEST OF TERRE
HAUTE. THE STRONGEST STORMS IN THIS AREA WERE OVER VERMILLION COUNTY
SOUTHWEST OF NEWPORT. OTHER STRONG STORMS WERE JUST NORTHWEST OF
CRAWFORDSVILLE.

THESE STORM WERE MOVING TO THE NORTHEAST AROUND 25 MILES AN HOUR.
SEVERAL OF THESE STORMS HAVE BEEN TRAVELLING ALONG THE SAME PATH. THIS
MAY RESULT IN SOME LOCALLY HEAVY RAINFALL OVER PORTIONS OF WEST CENTRAL
INDIANA.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.
Special weather statement, Jul 20, 2:07 PM EST, 1 hour 42 minutes before
INZ028-029-035-036-043>045-051>053-202010-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
206 PM EST WED JUL 20 1994

...STRONG THUNDERSTORMS OVER WEST CENTRAL INDIANA...

AT 200 PM WEATHER RADAR INDICATED AN AREA OF THUNDERSTORMS DEVELOPING
FROM JUST SOUTH OF LAFAYETTE TO ABOUT 20 MILES NORTHWEST OF TERRE
HAUTE. THE STRONGEST STORMS IN THIS AREA WERE OVER VERMILLION COUNTY
SOUTHWEST OF NEWPORT. OTHER STRONG STORMS WERE JUST NORTHWEST OF
CRAWFORDSVILLE.

THESE STORM WERE MOVING TO THE NORTHEAST AROUND 25 MILES AN HOUR.
SEVERAL OF THESE STORMS HAVE BEEN TRAVELLING ALONG THE SAME PATH. THIS
MAY RESULT IN SOME LOCALLY HEAVY RAINFALL OVER PORTIONS OF WEST CENTRAL
INDIANA.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.
Special weather statement, Jul 20, 2:55 PM EST, 54 minutes before
INZ028>031-035>040-043>048-051>056-064-065-202055-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
255 PM EST WED JUL 20 1994

...STRONG THUNDERSTORMS CONTINUE OVER WEST CENTRAL AND CENTRAL
INDIANA....

AT 250 PM WEATHER RADAR INDICATED STRONG THUNDERSTORMS CONTINUING TO
DEVELOP OVER CENTRAL PORTIONS OF THE STATE...SOME WITH HEAVY RAIN.
SOME OF THE STRONGEST STORMS WERE OVER CLINTON COUNTY...JUST WEST OF
FRANKFORT...AND IN PARKE COUNTY WEST OF SHADES STATE PARK.

SMALL HAIL WAS REPORTED IN THE COLFAX AREA OF SOUTHWEST CLINTON COUNTY
AROUND 240 PM. SMALL HAIL WAS ALSO REPORTED IN FOUNTAIN COUNTY NEAR
I-74 AROUND 250 PM. SINCE MANY OF THESE STORMS ARE FOLLOWING ALONG THE
SAME PATH MANY AREAS WILL ALSO RECEIVE SOME LOCALLY HEAVY RAINFALL.

SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.

Nearby

Severe Thunderstorm Warnings in Indiana, 1994Every severe thunderstorm warning in 1994

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.