Illinois, 2000

Hail and Damaging Winds in Illinois, September 11, 2000

September 11, 2000 · NWS DVN · 4 events in 3 counties and zones

An outflow boundary from morning thunderstorms over Wisconsin dropped south into Northern Illinois, triggering additional thunderstorms. The storms mainly brought heavy rain, although several of the storms managed to strengthen sufficiently to produce damaging winds and large hail.

Where it happened

Every event with a place to put it; 1 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
$30,000
Crop damage
None recorded
Events
4

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.

An outflow boundary from morning thunderstorms over Wisconsin dropped south into Northern Illinois, triggering additional thunderstorms. The storms mainly brought heavy rain, although several of the storms managed to strengthen sufficiently to produce damaging winds and large hail. Carroll and Whiteside counties felt the brunt of the storms.

The radar

The Quad Cities radar (KDVN), 112 km away, was scanning. The volume nearest the first event began at 18:44 UTC.

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Event by event

2 thunderstorm wind, 1 lightning, 1 hail. Local standard time, as filed.

Lightning, Stephenson

When
September 11, 10:30 AM CST
Where
Stephenson County, Lena
Property damage
$30,000
Reported by
NEWSPAPER
Coordinates
42.352, -89.662 (the zone’s center; the record gives no point)

Lightning struck a home and ignited a fire.

Hail, Carroll

When
September 11, 12:45 PM CST
Where
Carroll County, Mt Carroll
Measured
0.75 in hail
Reported by
NEWSPAPER
Coordinates
42.100, -89.983

Thunderstorm Wind, Carroll

When
September 11, 12:50 PM CST
Where
Carroll County, Countywide
Measured
52 kt (60 mph)
Reported by
NEWSPAPER
Coordinates
42.067, -89.917

Several trees and limbs down throughout the county.

Thunderstorm Wind, Whiteside

When
September 11, 12:50 PM CST
Where
Whiteside County, Countywide
Measured
52 kt (60 mph)
Reported by
NEWSPAPER
Coordinates
41.750, -89.900

Several trees and limbs down throughout the county.

What these are

Lightning
A lightning strike that killed, injured or caused damage.
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.

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

The same day elsewhere

More

Every storm in Illinois in 2000Every state in 2000This day in weather historyWarnings in Illinois, September 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: 5162209, 5162208, 5162206, 5162207.