Alert archive / Indiana / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 96, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 1, 1991, 7:35 PM EST for Elkhart County, Saint Joseph County, Indiana; Cass County, Michigan. It was in force for 25 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
- Jul 1, 1991, 7:35 PM EST (00:35 UTC)
- Expired
- Jul 1, 1991, 8:00 PM EST
- In force
- 25 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
Counties Elkhart County, IN, Saint Joseph County, IN, Cass County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 1, 7:45 PM EST | Thunderstorm Wind 0 | Cass, MI |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 0.6 hours before the alert went out and 243 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
- 1323 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 1, 4:35 PM EST, 3 hours before
INZALL-020400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 435 PM EST MON JUL 1 1991 IN INDIANA THIS SEVERE THUNDERSTORM WATCH IS IN EFFECT UNIL 1100 PM EST AND INCLUDES THAT PART OF INDIANA... NORTHWEST OF LINE FROM 20 MILES NORTH OF TERRE HAUTE TO 45 MILES NORTH OF FORT WAYNE. SOME CITIES INCLUDED ARE... SOUTH BEND...LAPORTE...ELKHART... RENSSELAER...LOGANSPORT...LAFAYETTE AND NEWPORT. REMEMBER...A WATCH MEANS THAT\ CONDITIONS ARE FAVORABLE FOR SEVERE WEATHER IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PRICE
Special weather statement, Jul 1, 5:40 PM EST, 1 hour 55 minutes before
INZALL-012340- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 538 PM EST MON JUL 1 1991 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNIL 1100 PM EST FOR THAT PART OF INDIANA NORTHWEST OF A LINE FROM 20 MILES NORTH OF TERRE HAUTE TO 45 MILES NORTH OF FORT WAYNE. SOME CITIES INCLUDED ARE... SOUTH BEND...LAPORTE...ELKHART... RENSSELAER...LOGANSPORT...LAFAYETTE AND NEWPORT. AT 535 PM EST NATIONAL WEATHER SERVICE RADAR SHOWED SMALL ISOLATED THUNDERSTORMS 30 MILES NORTH OF LAFAYETTE NEAR MONON. THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER CENTRAL ILLINOIS BETWEEN SPRINGFIELD AND PEORIA. ALL OF THE THUNDERSTORMS WERE MOVING EAST AT 25 MPH. SBH
Special weather statement, Jul 1, 6:23 PM EST, 1 hour 12 minutes before
INZALL-020020- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 620 PM EST MON JUL 1 1991 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNIL 1100 PM EST FOR THAT PART OF INDIANA NORTHWEST OF A LINE FROM 20 MILES NORTH OF TERRE HAUTE TO 45 MILES NORTH OF FORT WAYNE. SOME CITIES INCLUDED ARE... SOUTH BEND...LAPORTE...ELKHART... RENSSELAER...LOGANSPORT...LAFAYETTE AND NEWPORT. AT 615 PM EST NATIONAL WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH HEAVY RAIN 10 MILES WEST OF LOGANSPORT NEAR LAKE CICOTT. ANOTHER THUNDERSTORM WITH HEAVY RAIN WAS 15 MILES WEST OF LAFAYETTE NEAR OTTERBEIN. THE STORMS WERE MOVING EAST AT 30 MPH. AT 615 PM EST THE STRONGEST THUNDERSTORMS WERE OVER CENTRAL ILLINOIS BETWEEN SPRINGFIELD AND CHAMPAIGN. THESE STORMS WERE MOVING EAST AT 30 MPH...AND SHOULD MOVE INTO WEST CENTRAL INDIANA SHORTLY AFTER 700 PM EST. PEOPLE IN WEST CENTRAL AND NORTHWEST INDIANA SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND BE PREPARED TO TAKE SHELTER IF THEATENING WEATHER APPROACHES. HARLEY
Special weather statement, Jul 1, 7:16 PM EST, 19 minutes before
INZALL-020115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 715 PM EST MON JUL 1 1991 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNIL 1100 PM EST FOR MUCH OF NORTHERN AND WEST CENTRAL INDIANA. THUNDERSTORMS WITH EXTREMELY HEAVY RAIN...STRONG GUSTY WINDS...AND POSSIBLE SMALL HAIL WERE APPROACHING WEST CENTRAL INDIANA AT 712 PM EST. NATIONAL WEATHER SERVICE RADAR SHOWED STRONG THUNDERSTORMS SOUTH OF CHAMPAIGN ILLINOIS AT 710 PM EST. THESE THUNDERSTORMS PRODUCED WIND GUSTS TO 67 MPH AT DECATUR ILLINOIS. THE THUNDERSTORMS WERE MOVING EAST AT 35 MPH...AND SHOULD MOVE INTO WESTERN INDIANA BETWEEN TERRE HAUTE AND DANVILLE ILLINOIS BY 800 PM EST. POEPLE IN THE WESTERN INDJIANA TOWNS OF CLINTON...NEWPORT...PERRYSVILLE ...MECCA...MONTEZUMA...AND COVINGTON SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. BE READY TO TAKE COVER IF THREATENING WEATHER IS OBSERVED OR A WARNING IS ISSUED. HARLEY
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 8:07 PM EST | Severe Thunderstorm Warning | IND | Elkhart | 53 min |
| Jul 2, 2:08 PM EST | Severe Thunderstorm Warning | IND | Cass | 37 min |
| Jul 2, 2:21 PM EST | Severe Thunderstorm Warning | IND | Miami | 39 min |
| Jul 2, 2:57 PM EST | Severe Thunderstorm Warning | IND | Perry | 33 min |
| Jul 2, 3:13 PM EST | Severe Thunderstorm Warning | IND | Grayson | 62 min |
| Jul 2, 3:34 PM EST | Severe Thunderstorm Warning | IND | Christian, Todd | 41 min |
| Jul 1, 8:07 PM EST | Severe Thunderstorm Warning | IND | Cass | 33 min |
| Jul 1, 9:02 PM EST | Flash Flood Warning | IND | Saint Joseph | 118 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1991Severe Thunderstorm Warnings in Michigan, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.