Alert archive / Indiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 23, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 30, 1997, 6:24 PM EST for Greene County, Indiana. It was in force for 36 min. 2 reports 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
- Apr 30, 1997, 6:24 PM EST (23:24 UTC)
- Expired
- Apr 30, 1997, 7:00 PM EST
- In force
- 36 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Greene County, IN
The radar
The Indianapolis radar (KIND), 95 km from the middle of the area, began a volume at 23:24 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 |
|---|---|---|---|
| Apr 30, 6:24 PM EST | Hail 1 | Bloomfield, IN | |
| Apr 30, 6:24 PM EST | Thunderstorm Wind | Worthington, 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 |
|---|---|---|---|
| Apr 30, 2:30 PM EST | Tornado Watch | SPC | 7 hr |
| Apr 30, 5:30 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.4 hours before the alert went out and 187 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.
000 TTAA00 KIND 302326 RRA SVRIND INC055-010000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 624 PM EST WED APR 30 1997 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST INDIANA ...EASTERN GREENE COUNTY AT 623 PM EST NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM NEAR BLOOMFIELD...OR 25 MILES SOUTHWEST OF BLOOMINGTON. THE STORM WAS MOVING NORTHEAST AT 40 MPH. THE TOWN OF SOLSBERRY IS IN THE PATH OF THIS STORM. ONE INCH HAIL WAS REPORTED IN BLOOMFIELD WITH THIS STORM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. STAY TUNED TO THIS SOURCE FOR LATER INFORMATION ON THIS STORM. 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, 2 hours 55 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, 2 hours 54 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, 1 hour 51 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, 1 hour 49 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, 8 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, 7 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, 6:32 PM EST | Severe Thunderstorm Warning | IND | Monroe | 28 min |
| Apr 30, 6:39 PM EST | Severe Thunderstorm Warning | IND | Hendricks | 36 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.