Illinois, 1998

Tornado and Damaging Winds in Illinois, August 24, 1998

August 24, 1998 · NWS DVN · 8 events in 3 counties and zones

Severe thunderstorms developed over North Central Iowa and moved eastward into Illinois blowing down trees, limbs, and powerlines. Numerous homes and farm buildings were damaged by the winds, several vehicles were smashed by falling trees and branches, and thousands of acres of corn and soybeans were damaged or destroyed.

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
$80,000
Crop damage
None recorded
Events
8

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.

Severe thunderstorms developed over North Central Iowa and moved eastward into Illinois blowing down trees, limbs, and powerlines. Numerous homes and farm buildings were damaged by the winds, several vehicles were smashed by falling trees and branches, and thousands of acres of corn and soybeans were damaged or destroyed. In Stephenson County a tornado cut a path through the Pearl City area severely damaging a home and destroying a garage. At the Stephenson County Fair three-fourths of the tents were knocked down. A woman and a kid goat were injured when the tents collapsed. Telephone and electric service was out throughout much of the Elizabeth and Hanover areas due to trees falling on utility lines.

The radar

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

Open the radar archive at this moment

Event by event

7 thunderstorm wind, 1 tornado. Local standard time, as filed.

Thunderstorm Wind, Jo Daviess

When
August 24, 10:58 AM CST
Where
Jo Daviess County, Elmoville
Measured
56 kt (64 mph)
Reported by
TRAINED SPOTTER
Coordinates
42.270, -90.050

Thunderstorm Wind, Jo Daviess

When
August 24, 11:00 AM CST
Where
Jo Daviess County, Hanover
Measured
52 kt (60 mph)
Reported by
LAW ENFORCEMENT
Coordinates
42.250, -90.280

Thunderstorm Wind, Carroll

When
August 24, 11:10 AM CST
Where
Carroll County, Savanna
Measured
70 kt (81 mph)
Reported by
LAW ENFORCEMENT
Coordinates
42.080, -90.150

Thunderstorm Wind, Carroll

When
August 24, 11:15 AM CST to 11:30 AM CST
Where
Carroll County, Mt Carroll to Lanark
Measured
74 kt (85 mph)
Reported by
NEWSPAPER
Coordinates
42.100, -89.980

Thunderstorm Wind, Stephenson

When
August 24, 11:18 AM CST
Where
Stephenson County, 3 mi N of Pearl City
Measured
65 kt (75 mph)
Reported by
TRAINED SPOTTER
Coordinates
42.320, -89.830

Thunderstorm Wind, Stephenson

When
August 24, 11:30 AM CST
Where
Stephenson County, Freeport
Measured
70 kt (81 mph)
Reported by
TRAINED SPOTTER
Coordinates
42.280, -89.620

Tornado, Stephenson

When
August 24, 11:30 AM CST
Where
Stephenson County, Pearl City
Rating
F1
Path length
0.5 mi
Path width
50 yd
Property damage
$80,000
Reported by
NEWSPAPER
Coordinates
42.270, -89.830

Thunderstorm Wind, Stephenson

When
August 24, 11:45 AM CST
Where
Stephenson County, 1 mi SE of German Vly
Measured
65 kt (75 mph)
Reported by
TRAINED SPOTTER
Coordinates
42.200, -89.450

What these are

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.
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, August 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: 5664748, 5664749, 5664750, 5664755, 5664751, 5664752, 5664754, 5664753.