Indiana, 2000

Flooding and Hail in Indiana, August 17, 2000

August 17, 2000 · NWS IND · 25 events in 9 counties and zones

A series of supercell thunderstorms developed along a warm front during the afternoon and evening of August 17 producing a swath of hail as large as tennis balls. As each supercell developed, they quickly moved southeast along the warm front as the northwest upper level flow was parallel to it.

Where it happened

Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
1
Property damage
$370,000
Crop damage
None recorded
Events
25

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS IND wrote it up.

A series of supercell thunderstorms developed along a warm front during the afternoon and evening of August 17 producing a swath of hail as large as tennis balls. As each supercell developed, they quickly moved southeast along the warm front as the northwest upper level flow was parallel to it. So many areas were hit by numerous hail producing supercells. In addition, there were also a few reports of wind damge including a tree falling on a car near Greenwood. The occupied was trapped for a time but received only minor injuries.

The radar

The Indianapolis radar (KIND), 73 km away, was scanning. The volume nearest the first event began at 21:50 UTC.

Open the radar archive at this moment

Event by event

13 hail, 7 thunderstorm wind, 3 lightning, 2 flood. Local standard time, as filed.

Hail, Montgomery

When
August 17, 4:49 PM EST to 4:54 PM EST
Where
Montgomery County, Alamo
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
39.983, -87.050

Flood, Montgomery

When
August 17, 5:00 PM EST to 8:00 PM EST
Where
Montgomery County, Countywide
Reported by
NEWSPAPER
Coordinates
40.040, -86.893 (the zone’s center; the record gives no point)

Hail, Montgomery

When
August 17, 5:05 PM EST to 5:07 PM EST
Where
Montgomery County, Alamo
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
39.983, -87.050

Hail, Montgomery

When
August 17, 5:28 PM EST to 5:30 PM EST
Where
Montgomery County, Crawfordsville
Measured
1.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
40.033, -86.900

Hail, Montgomery

When
August 17, 5:40 PM EST to 5:46 PM EST
Where
Montgomery County, 2 mi E of Crawfordsville
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.033, -86.867

Hail, Putnam

When
August 17, 5:41 PM EST to 5:43 PM EST
Where
Putnam County, Barnard
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
39.850, -86.700

Hail, Hendricks

When
August 17, 5:42 PM EST to 5:47 PM EST
Where
Hendricks County, Lizton
Measured
1.75 in hail
Reported by
AMATEUR RADIO
Coordinates
39.883, -86.550

Hail, Hendricks

When
August 17, 6:00 PM EST to 6:10 PM EST
Where
Hendricks County, Danville
Measured
1.5 in hail
Reported by
AMATEUR RADIO
Coordinates
39.767, -86.533

Hail, Hendricks

When
August 17, 6:23 PM EST to 6:31 PM EST
Where
Hendricks County, 5 mi W of Danville
Measured
2.5 in hail
Reported by
EMERGENCY MANAGER
Coordinates
39.767, -86.633

Hail, Marion

When
August 17, 6:34 PM EST to 6:36 PM EST
Where
Marion County, (Ind)indnpls Intl Ar
Measured
1.25 in hail
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.733, -86.283

Thunderstorm Wind, Hendricks

When
August 17, 6:35 PM EST to 6:37 PM EST
Where
Hendricks County, 2 mi E of Plainfield
Measured
50 kt (58 mph)
Reported by
AMATEUR RADIO
Coordinates
39.700, -86.367

Hail, Hendricks

When
August 17, 6:39 PM EST to 6:41 PM EST
Where
Hendricks County, 2 mi E of Danville
Measured
2 in hail
Reported by
LAW ENFORCEMENT
Coordinates
39.767, -86.500

Thunderstorm Wind, Morgan

When
August 17, 6:40 PM EST to 6:42 PM EST
Where
Morgan County, Martinsville
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
39.433, -86.433

Hail, Hendricks

When
August 17, 6:45 PM EST to 6:50 PM EST
Where
Hendricks County, Avon
Measured
1 in hail
Reported by
NWS EMPLOYEE(OFF DUTY)
Coordinates
39.767, -86.400

Hail, Johnson

When
August 17, 6:47 PM EST to 6:52 PM EST
Where
Johnson County, Stones Crossing
Measured
2 in hail
Reported by
NWS EMPLOYEE(OFF DUTY)
Coordinates
39.583, -86.167

Flood, Montgomery

When
August 17, 6:50 PM EST to 7:50 PM EST
Where
Montgomery County, Crawfordsville
Reported by
EMERGENCY MANAGER
Coordinates
40.040, -86.893 (the zone’s center; the record gives no point)

Thunderstorm Wind, Marion

When
August 17, 6:59 PM EST to 7:01 PM EST
Where
Marion County, 8 mi SW of Indianapolis
Measured
50 kt (58 mph)
Reported by
TRAINED SPOTTER
Coordinates
39.700, -86.250

Thunderstorm Wind, Johnson

When
August 17, 7:05 PM EST to 7:18 PM EST
Where
Johnson County, Bluff Creek
Measured
50 kt (58 mph)
Injuries
1 direct, 0 indirect
Property damage
$20,000
Reported by
LAW ENFORCEMENT
Coordinates
39.550, -86.217

Lightning, Delaware

When
August 17, 7:17 PM EST
Where
Delaware County, Yorktown
Property damage
$200,000
Reported by
NEWSPAPER
Coordinates
40.228, -85.397 (the zone’s center; the record gives no point)

Hail, Johnson

When
August 17, 7:28 PM EST to 7:35 PM EST
Where
Johnson County, Greenwood
Measured
2 in hail
Reported by
TRAINED SPOTTER
Coordinates
39.617, -86.117

Thunderstorm Wind, Parke

When
August 17, 8:15 PM EST to 8:17 PM EST
Where
Parke County, 5 mi SW of Rockville
Measured
50 kt (58 mph)
Reported by
LAW ENFORCEMENT
Coordinates
39.717, -87.300

Lightning, Morgan

When
August 17, 9:00 PM EST
Where
Morgan County, Martinsville
Property damage
$100,000
Reported by
NEWSPAPER
Coordinates
39.482, -86.446 (the zone’s center; the record gives no point)

Thunderstorm Wind, Clay

When
August 17, 9:30 PM EST to 9:32 PM EST
Where
Clay County, Brazil
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
39.533, -87.117

Thunderstorm Wind, Marion

When
August 17, 9:49 PM EST to 9:51 PM EST
Where
Marion County, Ind Eagle Creek Arpt
Measured
51 kt (59 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.833, -86.300

Lightning, Johnson

When
August 17, 10:15 PM EST
Where
Johnson County, Franklin
Property damage
$40,000
Reported by
NEWSPAPER
Coordinates
39.490, -86.102 (the zone’s center; the record gives no point)

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Lightning
A lightning strike that killed, injured or caused damage.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Indiana in 2000Every state in 2000This day in weather historyWarnings in Indiana, August 2000

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5175298, 5175367, 5175299, 5175300, 5175304, 5175301, 5175302, 5175303, 5175305, 5175306, 5175307, 5175308, 5175366, 5175309, 5175310, 5175316, 5175311, 5175312, 5175319, 5175313, 5175314, 5175320, 5175317, 5175315, 5175318.