Illinois, 1999

Damaging Winds in Illinois, May 17, 1999

May 17, 1999 · NWS LOT · 3 events in 3 counties and zones

A small intense thunderstorm cluster developed in Livingston County and raced northeast through Will County and into southern Cook County. Wind damaged a barn and a shed near Dwight.

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
None recorded
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 LOT wrote it up.

A small intense thunderstorm cluster developed in Livingston County and raced northeast through Will County and into southern Cook County. Wind damaged a barn and a shed near Dwight. Power poles were also blown down. In Will County, trees were blown down in Wilmington and a tree fell on a house in Manhattan. A semi tractor-trailer was overturned on Laraway Road and Cherry Hill Road near New Lenox. In Cook County, part of the roof of a school was peeled off in Country Club Hills. There were no injuries to the students. The roof of an industrial building in Alsip was also damaged.

The radar

The Chicago radar (KLOT), 71 km away, was scanning. The volume nearest the first event began at 15:46 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Livingston

When
May 17, 9:45 AM CST
Where
Livingston County, 5 mi S of Dwight
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
41.020, -88.430

Thunderstorm Wind, Will

When
May 17, 9:50 AM CST to 10:00 AM CST
Where
Will County, Wilmington to New Lenox
Measured
50 kt (58 mph)
Reported by
EMERGENCY MANAGER
Coordinates
41.320, -88.150

Thunderstorm Wind, Cook

When
May 17, 10:10 AM CST
Where
Cook County, Country Club Hills to Alsip
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
41.550, -87.720

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.

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

The same day elsewhere

More

Every storm in Illinois in 1999Every state in 1999This day in weather historyWarnings in Illinois, May 1999

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: 5696618, 5696619, 5696620.