A squall line dropped southeast across Central Indiana knocking down numerous trees and producing large hail. A few supercells also formed southwest of Indianapolis producing mainly large hail. A tree fell on a car near Cloverdale, while a man was injured as a garage under construction collapsed on him in Chesterfield. The squall line was fueled by near full afternoon sunshine ahead of it and a very strong upper level low trailing a cold front which lagged behind the squall line. Many streets were also water covered as nearly 4 inches of rain fell across many spots south of Indianapolis.

Thunderstorm Wind in CARROLL, INDIANA
From 18-AUG-01 15:45:00 to 18-AUG-01 15:45:00 (EST)
Location: DELPHI
Magnitude: 50 E
Reported by: AMATEUR RADIO

Hail in TIPPECANOE, INDIANA
From 18-AUG-01 16:28:00 to 18-AUG-01 16:30:00 (EST)
Location: CLARKS HILL
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in VIGO, INDIANA
From 18-AUG-01 17:50:00 to 18-AUG-01 18:00:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in MADISON, INDIANA
From 18-AUG-01 17:07:00 to 18-AUG-01 17:09:00 (EST)
Location: CHESTERFIELD
Magnitude: 50 E
Property damage: 10K
Reported by: AMATEUR RADIO

Thunderstorm Wind in OWEN, INDIANA
From 18-AUG-01 18:00:00 to 18-AUG-01 18:02:00 (EST)
Location: GOSPORT
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in OWEN, INDIANA
From 18-AUG-01 18:13:00 to 18-AUG-01 18:15:00 (EST)
Location: SPENCER
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Flood in JOHNSON, INDIANA
From 18-AUG-01 18:30:00 to 18-AUG-01 19:30:00 (EST)
Location: GREENWOOD
Reported by: LAW ENFORCEMENT

Flood in CLAY, INDIANA
From 18-AUG-01 18:30:00 to 18-AUG-01 19:30:00 (EST)
Location: BRAZIL
Reported by: LAW ENFORCEMENT

Flood in MORGAN, INDIANA
From 18-AUG-01 18:35:00 to 18-AUG-01 18:55:00 (EST)
Location: MARTINSVILLE
Reported by: LAW ENFORCEMENT

Flood in GREENE, INDIANA
From 18-AUG-01 19:30:00 to 18-AUG-01 20:30:00 (EST)
Location: LINTON
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in PUTNAM, INDIANA
From 18-AUG-01 18:00:00 to 18-AUG-01 18:02:00 (EST)
Location: CLOVERDALE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in DAVIESS, INDIANA
From 18-AUG-01 20:10:00 to 18-AUG-01 20:20:00 (EST)
Location: WASHINGTON
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in KNOX, INDIANA
From 18-AUG-01 19:50:00 to 18-AUG-01 19:55:00 (EST)
Location: FREELANDVILLE
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in BROWN, INDIANA
From 18-AUG-01 19:15:00 to 18-AUG-01 19:17:00 (EST)
Location: MT LIBERTY
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in MADISON, INDIANA
From 18-AUG-01 17:45:00 to 18-AUG-01 17:47:00 (EST)
Location: PENDLETON
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in HOWARD, INDIANA
From 18-AUG-01 16:44:00 to 18-AUG-01 16:45:00 (EST)
Location: SYCAMORE
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Thunderstorm Wind in TIPTON, INDIANA
From 18-AUG-01 16:40:00 to 18-AUG-01 16:41:00 (EST)
Location: KEMPTON
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in JOHNSON, INDIANA
From 18-AUG-01 18:40:00 to 18-AUG-01 18:42:00 (EST)
Location: PRINCES LAKES
Magnitude: 50 E
Reported by: DEPT OF HIGHWAYS

Hail in MORGAN, INDIANA
From 18-AUG-01 18:40:00 to 18-AUG-01 18:40:00 (EST)
Location: MORGANTOWN
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Thunderstorm Wind in MONROE, INDIANA
From 18-AUG-01 18:50:00 to 18-AUG-01 18:55:00 (EST)
Location: BLOOMINGTON
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in CLAY, INDIANA
From 18-AUG-01 18:25:00 to 18-AUG-01 18:27:00 (EST)
Location: CLAY CITY
Magnitude: 1.50 
Reported by: LAW ENFORCEMENT

Hail in BOONE, INDIANA
From 18-AUG-01 16:25:00 to 18-AUG-01 16:26:00 (EST)
Location: THORNTOWN
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in MONTGOMERY, INDIANA
From 18-AUG-01 16:30:00 to 18-AUG-01 16:32:00 (EST)
Location: LINDEN
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in CLAY, INDIANA
From 18-AUG-01 16:48:00 to 18-AUG-01 16:55:00 (EST)
Location: CORY
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Thunderstorm Wind in VERMILLION, INDIANA
From 18-AUG-01 17:10:00 to 18-AUG-01 17:11:00 (EST)
Location: CENTENARY
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in OWEN, INDIANA
From 18-AUG-01 17:30:00 to 18-AUG-01 17:40:00 (EST)
Location: CARP
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CLINTON, INDIANA
From 18-AUG-01 16:47:00 to 18-AUG-01 16:49:00 (EST)
Location: HILLISBURG
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in PARKE, INDIANA
From 18-AUG-01 17:08:00 to 18-AUG-01 17:10:00 (EST)
Location: LYFORD
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in BOONE, INDIANA
From 18-AUG-01 16:45:00 to 18-AUG-01 16:45:00 (EST)
Location: THORNTOWN
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in WARREN, INDIANA
From 18-AUG-01 15:12:00 to 18-AUG-01 15:12:00 (EST)
Location: POWLEYS CORNERS
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Hail in TIPPECANOE, INDIANA
From 18-AUG-01 15:29:00 to 18-AUG-01 15:30:00 (EST)
Location: LAFAYETTE
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in CLINTON, INDIANA
From 18-AUG-01 16:20:00 to 18-AUG-01 16:20:00 (EST)
Location: FRANKFORT
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in PUTNAM, INDIANA
From 18-AUG-01 17:30:00 to 18-AUG-01 17:40:00 (EST)
Location: CLOVERDALE
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in MORGAN, INDIANA
From 18-AUG-01 18:20:00 to 18-AUG-01 18:20:00 (EST)
Location: MARTINSVILLE
Magnitude: 0.75 
Reported by: AMATEUR RADIO