Flash Flooding and Hail in Indiana, April 21, 2002

Name: Flash Flooding and Hail in Indiana, April 21, 2002
Start: 2002-04-21T17:13
End: 2002-04-21T21:00
Location: Indiana

April 21, 2002 · NWS LMK · 9 events in 6 counties and zones

4 hail, 4 flash flood, 1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 4 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: 0
Property damage: $10,000
Crop damage: None recorded
Events: 9

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 forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before the first event at Apr 21, 2:20 PM EST, 2 hours 53 minutes earlier.

Area forecast discussion, Apr 21, 2:20 PM EST, 2 hours 53 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOUISVILLE KY
320 PM EDT SUN APR 21 2002 2002

VERY SHARP WARM FNT WAS MEANDERING ACRS SRN INDIANA/NRN KY AT MID
AFTN WITH TEMPS JUST SOUTH OF FNT IN THE LOWER 80S...WITH MID 40S
JUST NORTH OF FNT. S/W TOPPING FLAT H5 RDG IN CNTRL OH VLY...WILL
HELP IGNITE FURTHER TSTMS IN CNTRL KY LATE AFTN/EVNG.  SO FAR ...
TSTMS HAVE BEEN SLGHTLY ELEVATED EITHER NORTH OF FNT OR NORTH OF
OUTFLOW BNDRYS AND HAVE NOT TAPPED INTO EXTREME POTENTIAL ENERGY
TO THE SOUTH. THAT MAY CHG THE NEXT FEW HOURS AS STORMS BUILD S AND
BECOME ROOTED AT THE SFC. MEANWHILE... CDFNT TO SWEEP ACRS OUR FCST
AREA THIS EVNG...WITH BAND OF TSTMS MOVG.

COOL/RATHER MOIST/CYCLONIC FLOW THEN TO SETTLE OVR RGN LATE TNGT &
MONDAY...WITH A DECENT AMOUNT OF LOW CLDS.

GREATER ANTICYCLONIC FLOW LATE MON NITE/TUE SHUD LEAD TO IMPROVING
SKY CONDS. COLD MON NITE...WITH TEMPS BOTTOMING OUT BETWEEN 35 AND
40 DEGREES.

THINK BEST RETURNING WAA TUE NITE WILL REMAIN W AND SOUTHWEST OF OUR
FA...SO NO MENTION OF PCPN THEN.  HAVE THEN KEPT CONTINUITY WITH CHC
SHWRS/TSTMS WRN FA ON WEDNESDAY...WITH APRCHG CDFNT.

NO BIG QUIBBLE WITH GUIDE TEMPS...AS ALL ARE CLUSTERED ARND EACH
OTHER.

.SDF...NONE.
STUREY

The radar

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

Open the radar archive at this moment

Event by event

4 hail, 4 flash flood, 1 thunderstorm wind. Local standard time, as filed.

Hail, Dubois

When: April 21, 5:13 PM EST
Where: Dubois County, Huntingburg
Measured: 0.75 in hail
Reported by: AMATEUR RADIO
Coordinates: 38.300, -86.950

Hail, Dubois

When: April 21, 5:22 PM EST
Where: Dubois County, Ferdinand
Measured: 0.75 in hail
Reported by: AMATEUR RADIO
Coordinates: 38.217, -86.867

Hail, Crawford

When: April 21, 5:40 PM EST
Where: Crawford County, Eckerty
Measured: 1.75 in hail
Reported by: LAW ENFORCEMENT
Coordinates: 38.317, -86.617

Hail, Harrison

When: April 21, 6:00 PM EST
Where: Harrison County, Ramsey
Measured: 1.75 in hail
Reported by: LAW ENFORCEMENT
Coordinates: 38.317, -86.150

Thunderstorm Wind, Clark

When: April 21, 6:25 PM EST
Where: Clark County, Jeffersonville
Measured: 60 kt (69 mph)
Reported by: NEWSPAPER
Coordinates: 38.283, -85.717

Trees were blown down.

Flash Flood, Clark

When: April 21, 6:25 PM EST to 8:30 PM EST
Where: Clark County, Jeffersonville
Reported by: NEWSPAPER
Coordinates: 38.477, -85.707 (the zone’s center; the record gives no point)

Streets in Jeffersonville were covered by as much as two feet of water.

Flash Flood, Jefferson

When: April 21, 6:30 PM EST to 9:00 PM EST
Where: Jefferson County, Countywide
Property damage: $10,000
Reported by: NEWSPAPER
Coordinates: 38.786, -85.439 (the zone’s center; the record gives no point)

Many roads were flooded countywide. Roads and bridges were washed out in the eastern part of the county. Flood waters entered a business on U.S. 421 in Madison.

Flash Flood, Scott

When: April 21, 6:30 PM EST to 9:00 PM EST
Where: Scott County, Countywide
Reported by: LAW ENFORCEMENT
Coordinates: 38.685, -85.747 (the zone’s center; the record gives no point)

Many roads were flooded throughout the county.

Flash Flood, Harrison

When: April 21, 7:00 PM EST to 8:00 PM EST
Where: Harrison County, 2 mi N of Crandall
Reported by: LAW ENFORCEMENT
Coordinates: 38.195, -86.111 (the zone’s center; the record gives no point)

The eastbound lane of State Road 64 was covered with water.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.
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

Every storm in Indiana in 2002 Every state in 2002 This day in weather history Warnings in Indiana, April 2002

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: 5291375, 5291376, 5291377, 5291378, 5291380, 5291381, 5291379, 5291382, 5291471.