Alert archive / Indiana / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 121, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 7, 1991, 11:03 PM EST for Kosciusko County, Indiana. It was in force for 42 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1991, 11:03 PM EST (04:03 UTC)
- Expired
- Jul 7, 1991, 11:45 PM EST
- In force
- 42 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Kosciusko County, IN
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 00:00Z, 4.1 hours before the alert went out and 205 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
- 2675 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1471 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jul 7, 6:24 PM EST, 4 hours 39 minutes before
INZALL-080000- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE INDIANAPOLIS IN 615 PM EST SUN JUL 7 1991 A TORNADO WATCH IS IN EFFECT UNTIL 1100 PM EST FOR MOST OF THE NORTHERN HALF OF INDIANA. AT 610 PM EST...THUNDERSTORMS WERE MOVING THROUGH EXTREME NORTHWEST INDIANA. THESE THUNDERSTORMS HAVE A HISTORY OF PRODUCING WINDS GUSTING FROM 40 TO 60 MILES AND HOUR AND HALF INCH HAIL. IF THE HAIL OCCURS WITH VERY HIGH WINDS IT CAN BE VERY DAMAGING. THE THUNDERSTORMS WERE MOVING EAST AT 40 TO 50 MILES AN HOUR. THEY MAY MOVE INTO NEWTON COUNTY BY 700 PM. USE EXTREME CAUTION WHEN TRAVELING IN NORTHWEST INDIANA TONIGHT. BE ALERT FOR RAIDLY CHANGING WEATHER CONDITIONS. IF AF WARNING IS ISSUED FOR YOUR AREA TAKE COVER IN A SAFE STRUCTURE IMMEDIATLY. HAINES
Special weather statement, Jul 7, 7:06 PM EST, 3 hours 57 minutes before
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</html>Special weather statement, Jul 7, 9:29 PM EST, 1 hour 34 minutes before
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</html>Special weather statement, Jul 7, 10:07 PM EST, 56 minutes before
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</html>The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:53 PM EST | Severe Thunderstorm Warning | IND | Jasper, Newton | 37 min |
| Jul 7, 8:18 PM EST | Severe Thunderstorm Warning | IND | Pulaski | 42 min |
| Jul 7, 8:28 PM EST | Severe Thunderstorm Warning | IND | Jasper, White | 32 min |
| Jul 7, 9:37 PM EST | Severe Thunderstorm Warning | IND | LaPorte | 53 min |
| Jul 7, 10:23 PM EST | Severe Thunderstorm Warning | IND | Marshall | 52 min |
| Jul 7, 10:33 PM EST | Severe Thunderstorm Warning | IND | LaPorte | 42 min |
| Jul 7, 11:21 PM EST | Severe Thunderstorm Warning | IND | Marshall | 69 min |
| Jul 7, 11:21 PM EST | Severe Thunderstorm Warning | IND | LaPorte | 69 min |
| Jul 7, 11:50 PM EST | Severe Thunderstorm Warning | IND | Kosciusko | 40 min |
| Jul 8, 12:15 AM EST | Severe Thunderstorm Warning | IND | Starke | 45 min |
| Jul 8, 12:26 AM EST | Severe Thunderstorm Warning | IND | Pulaski | 49 min |
| Jul 8, 12:51 AM EST | Severe Thunderstorm Warning | IND | Fulton | 54 min |
| Jul 8, 1:11 AM EST | Severe Thunderstorm Warning | IND | Cass, White | 49 min |
| Jul 8, 1:17 AM EST | Severe Thunderstorm Warning | IND | Pulaski | 28 min |
| Jul 8, 2:24 AM EST | Severe Thunderstorm Warning | IND | Clinton, Tipton | 51 min |
| Jul 8, 4:24 AM EST | Severe Thunderstorm Warning | IND | Rush | 36 min |
| Jul 8, 2:19 PM EST | Severe Thunderstorm Warning | IND | Decatur | 41 min |
| Jul 8, 2:33 PM EST | Severe Thunderstorm Warning | IND | Jennings | 27 min |
| Jul 8, 2:45 PM EST | Severe Thunderstorm Warning | IND | Lawrence | 30 min |
| Jul 8, 4:08 PM EST | Severe Thunderstorm Warning | IND | Perry | 37 min |
| Jul 8, 4:49 PM EST | Severe Thunderstorm Warning | IND | Perry | 26 min |
| Jul 8, 5:50 PM EST | Severe Thunderstorm Warning | IND | Spencer | 40 min |
| Jul 8, 6:54 PM EST | Severe Thunderstorm Warning | IND | Grayson, Ohio | 51 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1991Every severe thunderstorm warning in 1991
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.