Alert archive / Indiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 25, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 30, 1997, 6:39 PM EST for Hendricks County, Indiana. It was in force for 36 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
- Apr 30, 1997, 6:39 PM EST (23:39 UTC)
- Expired
- Apr 30, 1997, 7:15 PM EST
- In force
- 36 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Hendricks County, IN
The radar
The Indianapolis radar (KIND), 21 km from the middle of the area, began a volume at 23:39 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 30, 5:30 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 183 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
272 WUUS1 KIND 302340 RRA SVRIND INC063-010015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 639 PM EST WED APR 30 1997 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL INDIANA ...HENDRICKS COUNTY AT 638 PM EST NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM NEAR NEW WINCHESTER...OR ABOUT 30 MILES WEST OF INDIANAPOLIS. THE STORM WAS MOVING NORTHEAST AT 40 MPH. BROWNSBURG 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. CS
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, Apr 30, 3:29 PM EST, 3 hours 10 minutes before
INZ003>009-012>018-020>075-080>082-085>088-010200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 329 PM EST WED APR 30 1997 ...TORNADO WATCHES ARE IN EFFECT FOR MUCH OF WEST AND NORTH INDIANA UNTIL 900 PM EST... SOME CITIES INCLUDED IN THE WATCHES ARE LAFAYETTE...TERRE HAUTE... VINCENNES...SOUTH BEND...KOKOMO...ANGOLA AND FORT WAYNE. A TORNADO WATCH MEANS THAT TORNADOES AND SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. DANGEROUS LIGHTNING...LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. AT 325 PM...THUNDERSTORMS WERE MOVING EAST THROUGH ILLINOIS. THEY WILL LIKELY REACH WEST INDIANA BETWEEN 530 AND 630 PM. SEVERE WEATHER HAS OCCURRED IN WEST ILLINOIS. THUNDERSTORMS ARE LIKELY OVER MOST OF INDIANA THIS EVENING. SEVERE STORMS WILL BE POSSIBLE THROUGHOUT INDIANA. DS
Special weather statement, Apr 30, 3:30 PM EST, 3 hours 9 minutes before
INZ003>009-012>018-020>075-080>082-085>088-010200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 329 PM EST WED APR 30 1997 ...TORNADO WATCHES ARE IN EFFECT FOR MUCH OF WEST AND NORTH INDIANA UNTIL 900 PM EST... SOME CITIES INCLUDED IN THE WATCHES ARE LAFAYETTE...TERRE HAUTE... VINCENNES...SOUTH BEND...KOKOMO...ANGOLA AND FORT WAYNE. A TORNADO WATCH MEANS THAT TORNADOES AND SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. DANGEROUS LIGHTNING...LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. AT 325 PM...THUNDERSTORMS WERE MOVING EAST THROUGH ILLINOIS. THEY WILL LIKELY REACH WEST INDIANA BETWEvEN 530 AND 630 PM. SEVERE WEATHER HAS OCCURRED IN WEST ILLINOIS. THUNDERSTORMS ARE LIKELY OVER MOST OF INDIANA THIS EVENING. SEVERE STORMS WILL BE POSSIBLE THROUGHOUT INDIANA. DS
Special weather statement, Apr 30, 4:33 PM EST, 2 hours 6 minutes before
INZ003>009-012>018-020>036-043>045-051>053-060-061-067>069-302300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 433 PM EST WED APR 30 1997 ...TORNADO WATCHES IN EFFECT UNTIL 900 PM EST... TORNADO WATCHES REMAIN IN EFFECT FOR WESTERN AND NORTHERN INDIANA UNTIL 900 PM. AT 430 PM EST RADAR INDICATED A BROKEN LINE OF STRONG THUNDERSTORMS EXTENDING FROM NEAR CHICAGO TO 50 MILES WEST OF EVANSVILLE. THE STORMS WERE MOVING NORTHEAST AT 45 MPH. STRONG STORMS WILL MOVE INTO FAR WESTERN INDIANA BETWEEN 500 AND 530 PM. PERSONS IN WESTERN INDIANA SHOULD BE PREPARED FOR HEAVY RAIN...STRONG WINDS...AND HAIL. STAY TUNED TO THIS SOURCE FOR LATER INFORMATION ON THIS DEVELOPING SITUATION. CS
Special weather statement, Apr 30, 4:35 PM EST, 2 hours 4 minutes before
INZ003>009-012>018-020>036-043>045-051>053-060-061-067>069-302300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 433 PM EST WED APR 30 1997 ...TORNADO WATCHES IN EFFECT UNTIL 900 PM EST... TORNADO WATCHES REMAIN IN EFFECT FOR WESTERN AND NORTHERN INDIANA UNTIL 900 PM. AT 430 PM EST RADAR INDICATED A BROKEN LINE OF STRONG THUNDERSTORMS EXTENDING FROM NEAR CHICAGO TO 50 MILES WEST OF EVANSVILLE. THE STORMS WERE MOVING NORTHEAST AT 45 MPH. STRONG STORMS WILL MOVE INTO FAR WESTERN INDIANA BETWEEN 500 AND 530 PM. PERSONS IN WESTERN INDIANA SHOULD BE PREPARED FOR HEAVY RAIN...STRONG WINDS...AND HAIL. STAY TUNED TO THIS SOURCE FOR LATER INFORMATION ON THIS DEVELOPING SITUATION. CS
Special weather statement, Apr 30, 6:16 PM EST, 23 minutes before
INZ067-302345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 616 PM EST WED APR 30 1997 A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR KNOX COUNTY IN SOUITHWEST INDIANA UNTIL 630 PM EST. AT 553 PM EST THE PUBLIC REPORTED TREES DOWN IN VINCENNES NEAR VINCENNES UNIVERSITY. A NATIONAL WEATEHR SERVICE VOLUNTEER OBSERVER REPORTED WINDS ESTIMATED AT 60 MPH IN VINCENNES AT 600 PM. AT 610 PM EST STRONG THUNDERSTORMS EXTENDED FROM NEAR SPENCER...45 MILES SOUTHEAST OF TERRE HAUTE TO EAST OF VINCENNES. CURRAN &
Special weather statement, Apr 30, 6:17 PM EST, 22 minutes before
INZ067-302345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 616 PM EST WED APR 30 1997 A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR KNOX COUNTY IN SOUITHWEST INDIANA UNTIL 630 PM EST. AT 553 PM EST THE PUBLIC REPORTED TREES DOWN IN VINCENNES NEAR VINCENNES UNIVERSITY. A NATIONAL WEATEHR SERVICE VOLUNTEER OBSERVER REPORTED WINDS ESTIMATED AT 60 MPH IN VINCENNES AT 600 PM. AT 610 PM EST STRONG THUNDERSTORMS EXTENDED FROM NEAR SPENCER...45 MILES SOUTHEAST OF TERRE HAUTE TO EAST OF VINCENNES. CURRAN &
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 5:04 PM EST | Tornado Warning | IND | Parke, Vermillion | 26 min |
| Apr 30, 5:32 PM EST | Severe Thunderstorm Warning | IND | Montgomery | 28 min |
| Apr 30, 5:52 PM EST | Severe Thunderstorm Warning | IND | Knox | 38 min |
| Apr 30, 6:06 PM EST | Severe Thunderstorm Warning | IND | Daviess | 39 min |
| Apr 30, 6:24 PM EST | Severe Thunderstorm Warning | IND | Greene | 36 min |
| Apr 30, 6:32 PM EST | Severe Thunderstorm Warning | IND | Monroe | 28 min |
| Apr 30, 6:43 PM EST | Severe Thunderstorm Warning | IND | Daviess, Knox | 32 min |
| Apr 30, 6:52 PM EST | Severe Thunderstorm Warning | IND | Brown | 38 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.