Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 41, NWS Indianapolis, IN

July 2, 1997Miami County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 2, 1997, 1:14 PM EST for Miami County, Indiana. It was in force for 31 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 2, 1997, 1:14 PM EST (18:14 UTC)
Expired: Jul 2, 1997, 1:45 PM EST
In force: 31 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Miami County, IN

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 2, 1:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.2 hours before the alert went out and 227 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3216 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 582 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 14.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 021814 RRA
SVRIND
INC103-021845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
114 PM EST WED JUL 2 1997
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL INDIANA
 
   ...NORTHERN MIAMI COUNTY
 
AT 110 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM SOUTH OF
ROCHESTER. THIS STORM IS MOVING TO THE EAST AROUND 35 MILES AN HOUR. THE
TOWN OF MACY IS IN THE PATH OF THIS STORM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR $NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
MES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 1:50 PM EST	Severe Thunderstorm Warning	IND	Miami	25 min
Jul 2, 3:08 PM EST	Severe Thunderstorm Warning	IND	Madison	37 min
Jul 2, 3:13 PM EST	Tornado Warning	IND	Madison	32 min
Jul 2, 3:34 PM EST	Severe Thunderstorm Warning	IND	Delaware, Henry	41 min
Jul 2, 3:45 PM EST	Tornado Warning	IND	Delaware, Henry, Madison	60 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1997 Every 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.