Alert archive / Indiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 10, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Mar 28, 1997, 6:51 PM EST for Knox County, Indiana. It was in force for 69 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
- Mar 28, 1997, 6:51 PM EST (23:51 UTC)
- Expired
- Mar 28, 1997, 8:00 PM EST
- In force
- 69 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Knox County, IN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 7:02 PM EST | Thunderstorm Wind 51 | Vincennes, IN | |
| Mar 28, 7:15 PM EST | Thunderstorm Wind | Monroe City, 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, 6:00 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.9 hours before the alert went out and 192 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 282355 RRA SVRIND INC083-290100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 651 PM EST FRI MAR 28 1997 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST INDIANA ...KNOX COUNTY A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR ALL OF KNOX COUNTY IN SOUTHWEST INDIANA. A LINE OF THUNDERSTORMS WAS MOVING EASTWARD INTO KNOX COUNTY AND WAS MOVING EAST AT 30 TO 35 MPH. WINDS OF 55 TO 60 MPH HAVE BEEN REPORTED JUST WEST INTO EASTERN ILLINOIS. STRONG THUNDERSTORMS...DEADLY LIGHTNING AND VERY STRONG THUNDERSTORM WINDS ARE PROBABLE WITH THESE STORMS. THIS LINE OF THUNDERSTORMS WILL AFFECT THE ENTIRE KNOX COUNTY. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITXTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. BPRUITT &
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, Mar 28, 6:35 PM EST, 16 minutes before
INZ054-062-290000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 635 PM EST FRI MAR 28 1997 AT 629 PM EST...AMATEUR RADIO SPOTTERS REPORTED NICKEL SIZED HAIL ON US37 JUST SOUTH OF THE MORGAN COUNTY LINE. IF DANGEROUS WEATHER APPROACHES...TAKE COVER. CONLEY &
Special weather statement, Mar 28, 6:37 PM EST, 14 minutes before
INZ054-062-290000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 635 PM EST FRI MAR 28 1997 AT 629 PM EST...AMATEUR RADIO SPOTTERS REPORTED NICKEL SIZED HAIL ON US37 JUST SOUTH OF THE MORGAN COUNTY LINE. IF DANGEROUS WEATHER APPROACHES...TAKE COVER. CONLEY &
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, 6:14 PM EST | Severe Thunderstorm Warning | IND | Clay, Vigo | 61 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, 6:54 PM EST | Severe Thunderstorm Warning | IND | Tipton | 51 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.