Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 62, NWS Indianapolis, IN

July 27, 1997Clinton County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 27, 1997, 2:47 PM EST for Clinton County, Indiana. It was in force for 58 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
Jul 27, 1997, 2:47 PM EST (19:47 UTC)
Expired
Jul 27, 1997, 3:45 PM EST
In force
58 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Clinton County, IN

The radar

The Indianapolis radar (KIND), 68 km from the middle of the area, began a volume at 19:50 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 27, 2:30 PM ESTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 181 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 12:00Z on 1997-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2518 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 12:00Z on 1997-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
2518 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1375 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
26 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 271947 RRA
SVRIND
INC023-272045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
247 PM EST SUN JUL 27 1997
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL INDIANA
 
   ...CLINTON COUNTY
 
AT 245 PM EST...A SEVERE THUNDERSTORM WAS NEAR ROSSVILLE OR 10 MILES
NORTHWEST OF FRANFORT. THIS STORM WAS MOVING EAST AT 15 MPH AND WILL
MOVE THROUGH MORAN AND MICHIGANTOWN BY 345 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO6 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.
 
EDDY

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 27, 1:17 PM EST, 1 hour 30 minutes before
INZ003>009-012-014>018-271930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
117 PM EST SUN JUL 27 1997

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT OVER PARTS OF NORTH
CENTRAL AND NORTHEAST INDIANA UNTIL 600 PM...

THE WATCH IS NORTH OF A LINE FROM 20 MILES SOUTHEAST OF FORT WAYNE TO
50 MILES SOUTHWEST OF SOUTH BEND. SOME CITIES IN THE WATCH
INCLUDE...SOUTH BEND...ELKHART...ANGOLA...PLYMOUTH...WARSAW AND FORT
WAYNE.

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

AT 110 PM...THUNDERSTORMS WERE FROM JUST EAST OF SOUTH BEND SOUTHWEST
TO NEAR KNOX. THE STORMS WERE MOVING SOUTHEAST ABOUT 30 MPH.

DS
Special weather statement, Jul 27, 1:18 PM EST, 1 hour 29 minutes before
INZ003>009-012-014>018-271930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
117 PM EST SUN JUL 27 1997

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT OVER PARTS OF NORTH
CENTRAL AND NORTHEAST INDIANA UNTIL 600 PM...

THE WATCH IS NORTH OF A LINE FROM 20 MILES SOUTHEAST OF FORT WAYNE TO
50 MILES SOUTHWEST OF SOUTH BEND. SOME CITIES IN THE WATCH
INCLUDE...SOUTH BEND...ELKHART...ANGOLA...PLYMOUTH...WARSAW AND FORT
WAYNE.

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

AT 110 PM...THUNDERSTORMS WERE FROM JUST EAPST OF SOUTH BEND SOUTHWEST
TO NEAR KNOX. THE STORMS WERE MOVING SOUTHEAST ABOUT 30 MPH.

DS
Special weather statement, Jul 27, 1:38 PM EST, 1 hour 9 minutes before
INZ022-023-271930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
138 PM EST SUN JUL 27 1997

THUNDERSTORMS WILL BE MOVING INTO THE LOGANSPORT AND PERU AREAS
AROUND 200 PM. THE STORMS WILL PRODUCE DANGEROUS LIGHTNING AND BRIEF
HEAVY RAINFALL. WINDS WILL GUST TO BETWEEN 40 AND 50 MPH. HAIL IS
POSSIBLE.

PEOPLE AROUND LOGANSPORT AND PERU SHOULD BE ALERT TO RAPIDLY CHANGING
WEATHER.

DS
Special weather statement, Jul 27, 1:39 PM EST, 1 hour 8 minutes before
INZ022-023-271930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
138 PM EST SUN JUL 27 1997

THUNDERSTORMS WILL BE MOVING INTO THE LOGANSPORT AND PERU AREAS
AROUND 200 PM. THE STORMSn WILL PRODUCE DANGEROUS LIGHTNING AND BRIEF
HEAVY RAINFALL. WINDS WILL GUST TO BETWEEN 40 AND 50 MPH. HAIL IS
POSSIBLE.

PEOPLE AROUND LOGANSPORT AND PERU SHOULD BE ALERT TO RAPIDLY CHANGING
WEATHER.

DS
Special weather statement, Jul 27, 2:31 PM EST, 16 minutes before
INZ007-009-017-018-020>027-029>034-036>042-045>050-053>059-062>066-
070>073-272030Z-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
231 PM EST SUN JUL 27 1997

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR CENTRAL EAST
CENTRAL AND PART OF NORTHEAST INDIANA UNTIL 900 PM EST...

THE WATCH IS SOUTH OF A LINE FROM ANGOLA TO 30 MILES NORTHWEST OF
LAFAYETTE...EAST OF A LINE FROM 30 MILES NORTHWEST OF LAFAYETTE TO
BEDFORD AND NORTH OF A LINE FROM BEDFORD TO 30 MILES SOUTH OF
RICHMOND. SOME CITIES IN THE WATCH INCLUDE...FORT WAYNE...
LAFAYETTE...INDIANAPOLIS...MUNCIE...BLOOMINGTON...COLUMBUS AND
RICHMOND.

THE WATCH IS NO LONGER IN EFFECT OVER NORTH CENTRAL INDIANA.

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

AT 230 PM...AN AREA OF THUNDERSTORMS WAS OVER NORTHEAST AND NORTH
CENTRAL INDIANA FROM AROUND FORT WAYNE THROUGH PERU TO AROUND
RENSSELAER. THE STORMS WERE MOVING SOUTHEAST 30 MPH.

DS
Special weather statement, Jul 27, 2:32 PM EST, 15 minutes before
INZ007-009-017-018-020>027-029>034-036>042-045>050-053>059-062>066-
070>073-272030Z-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
231 PM EST SUN JUL 27 1997

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR CENTRAL EAST
CENTRAL AND PART OF NORTHEAST INDIANA UNTIL 900 PM EST...

THE WATCH IS SOUTH OF A LINE FROM ANGOLA TO 30 MILES NORTHWEST OF
LAFAYETTE...EAST OF A LINE FROM 30 MILES NORTHWEST OF LAFAYETTE TO
BEDFORD AND NORTH OF A LINE FROM BEDFORD TO 30 MILES SOUTH OF
RICHMOND. SOME CITIES IN THE WATCH INCLUDE...FORT WAYNE...
LAFAYETTE...INDIANAPOLIS...MUNCIE...BLOOMINGTON...COLUMBUS AND
RICHMOND.

THE WATCH IS NO LONGER IN EFFECT OVER NORTH CENTRAL INDIANA.

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

AT 230 PM...AN AREA OF THUNDERSTORMS WAS OVER NORTHEAST AND NORTH
CENTRAL INDIANA FROM AROUND FORT WAYNE THROUGH PERU TO AROUND
RENSSELAER. THE STORMS WERE MOVING SOUTHEAST 30 MPH.

DS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 10:05 PM ESTSevere Thunderstorm WarningINDMiami40 min
Jul 27, 3:50 PM ESTSevere Thunderstorm WarningINDRush40 min
Jul 27, 4:26 PM ESTSevere Thunderstorm WarningINDHamilton, Marion49 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1997Every severe thunderstorm warning in 1997

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.