Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 6, NWS Indianapolis, IN

March 28, 1997Clay County, Vigo County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 28, 1997, 6:14 PM EST for Clay County, Vigo County, Indiana. It was in force for 61 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 28, 1997, 6:14 PM EST (23:14 UTC)
Expired: Mar 28, 1997, 7:15 PM EST
In force: 61 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Clay County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 90 km from the middle of the area, began a volume at 23:14 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.

What was reported inside it

Time	Report	Where	Remark
Mar 28, 7:05 PM EST	Thunderstorm Wind	Terre Haute, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned 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
Mar 28, 3:15 PM EST	Tornado Watch	SPC	6 hr
Mar 28, 6:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.2 hours before the alert went out and 141 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: 127 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 282317 RRA
SVRIND
INC021-167-290015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
614 PM EST FRI MAR 28 1997
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL INDIANA
 
   ...CLAY COUNTY...EASTERN VIGO COUNTY
 
A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR EASTERN VIGO AND ALL
OF CLAY COUNTY OF WESTCENTRAL INDIANA UNTIL 715 PM EST.
 
THE STORM WAS PRESENTLY 7 MILES SOUTHEAST OF TERRE HAUTE AND WILL MOVE
THROUGH THE CITY OF BRAZIL BY 715 PM EST.
 
MOVEMENT OF THESE STORMS WAS TO THE NORTHEAST AT 30 TO 35 MPH.
 
3/4 INCH HAIL WAS REPORTED BY A SPOTTER FOR THE NATIONAL WEATHER SERVICE
NEAR THE TOWN OF PIMENTO.
 
 
 
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.
 
 
BPRUITT
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 5:03 PM EST	Severe Thunderstorm Warning	IND	Putnam	42 min
Mar 28, 5:22 PM EST	Severe Thunderstorm Warning	IND	Hendricks	53 min
Mar 28, 5:32 PM EST	Severe Thunderstorm Warning	IND	Vigo	43 min
Mar 28, 5:49 PM EST	Severe Thunderstorm Warning	IND	Marion	56 min
Mar 28, 6:06 PM EST	Severe Thunderstorm Warning	IND	Greene	69 min
Mar 28, 6:27 PM EST	Tornado Warning	IND	Clay, Vigo	63 min
Mar 28, 6:28 PM EST	Tornado Warning	IND	Marion	32 min
Mar 28, 6:40 PM EST	Severe Thunderstorm Warning	IND	Monroe	65 min
Mar 28, 6:45 PM EST	Severe Thunderstorm Warning	IND	Brown, Monroe	60 min
Mar 28, 6:50 PM EST	Severe Thunderstorm Warning	IND	Hancock	55 min
Mar 28, 6:51 PM EST	Severe Thunderstorm Warning	IND	Knox	69 min
Mar 28, 6:54 PM EST	Severe Thunderstorm Warning	IND	Tipton	51 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.