Indiana, 1998

Flash Flooding in Indiana, April 15 to 16, 1998

April 15 to 16, 1998 · NWS IND · 6 events in 6 counties and zones

Severe thunderstorms producing anywhere from 3 to 6 inches of rain over about a six hour period caused major flooding across all parts of the counties listed above. Most roads were under water for a period of time.

Where it happened

Every event with a place to put it; 6 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

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The toll

Deaths
0
Injuries
0
Property damage
$85,000
Crop damage
None recorded
Events
6

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.

Severe thunderstorms producing anywhere from 3 to 6 inches of rain over about a six hour period caused major flooding across all parts of the counties listed above. Most roads were under water for a period of time. Some evacuations were required in Martin County and along Kelso Creek in Knox County. Numerous cars were also stranded in high water while some bridges and culverts were washed out.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

6 flash flood. Local standard time, as filed.

Flash Flood, Knox

When
April 15, 9:40 PM EST to April 16, 5:00 AM EST
Where
Knox County, Countywide
Property damage
$15,000
Coordinates
38.689, -87.418 (the zone’s center; the record gives no point)

Flash Flood, Brown

When
April 15, 10:30 PM EST to April 16, 4:00 AM EST
Where
Brown County, Countywide
Property damage
$10,000
Coordinates
39.196, -86.227 (the zone’s center; the record gives no point)

Flash Flood, Greene

When
April 15, 10:30 PM EST to April 16, 4:00 AM EST
Where
Greene County, Countywide
Property damage
$15,000
Coordinates
39.036, -86.962 (the zone’s center; the record gives no point)

Flash Flood, Martin

When
April 15, 10:30 PM EST to April 16, 5:00 AM EST
Where
Martin County, Countywide
Property damage
$15,000
Coordinates
38.708, -86.803 (the zone’s center; the record gives no point)

Flash Flood, Monroe

When
April 15, 10:30 PM EST to April 16, 3:00 AM EST
Where
Monroe County, Countywide
Property damage
$10,000
Coordinates
39.161, -86.523 (the zone’s center; the record gives no point)

Flash Flood, Daviess

When
April 15, 10:42 PM EST to April 16, 4:00 AM EST
Where
Daviess County, Countywide
Property damage
$20,000
Coordinates
38.702, -87.072 (the zone’s center; the record gives no point)

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

More

Every storm in Indiana in 1998Every state in 1998This day in weather historyWarnings in Indiana, April 1998

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: 5642398, 5642395, 5642397, 5642399, 5642400, 5642396.