Illinois, 1998

Tornadoes and Hail in Illinois, April 15, 1998

April 15, 1998 · NWS DVN · 3 events in 3 counties and zones

Strong thunderstorms pushed across western Illinois producing hail, 2 brief tornadoes and numerous funnel cloud reports. A tornado south of Hooppole did minor damage to a corn field while no damage was reported with the tornado west of Viola..

Where it happened

Every event with a place to put it. 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
None recorded
Crop damage
$100
Events
3

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 DVN wrote it up.

Strong thunderstorms pushed across western Illinois producing hail, 2 brief tornadoes and numerous funnel cloud reports. A tornado south of Hooppole did minor damage to a corn field while no damage was reported with the tornado west of Viola..

The radar

The Quad Cities radar (KDVN), 14 km away, was scanning. The volume nearest the first event began at 20:43 UTC.

Open the radar archive at this moment

Event by event

2 tornado, 1 hail. Local standard time, as filed.

Hail, Rock Island

When
April 15, 2:45 PM CST
Where
Rock Island County, East Moline
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.520, -90.470

Tornado, Henry

When
April 15, 2:50 PM CST
Where
Henry County, 2 mi S of Hooppole
Rating
F0
Path length
0.1 mi
Path width
1 yd
Crop damage
$100
Reported by
TRAINED SPOTTER
Coordinates
41.530, -89.920

Tornado, Mercer

When
April 15, 4:00 PM CST
Where
Mercer County, 1 mi W of Viola
Rating
F0
Path length
0.1 mi
Path width
1 yd
Reported by
GENERAL PUBLIC
Coordinates
41.200, -90.600

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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

The same day elsewhere

More

Every storm in Illinois in 1998Every state in 1998This day in weather historyThe tornado archive for Illinois, 1998Warnings in Illinois, 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: 5662163, 5662164, 5662165.