Illinois, 2000

Hail and Damaging Winds in Illinois, May 12, 2000

May 12, 2000 · NWS LOT · 10 events in 5 counties and zones

A severe storm moved northeast across Kendall, extreme northern Grundy, extreme northwest Will and southwest Dupage Counties. It produced large hail and damaging winds.

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
10

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 severe storm moved northeast across Kendall, extreme northern Grundy, extreme northwest Will and southwest Dupage Counties. It produced large hail and damaging winds. There was a swath of 3/4 inch to 1 3/4 inch hail through an area from south of Yorkville to Naperville. The largest hail fell in a small area a couple miles south southeast of Yorkville, east of Route 47 between Ament Road and Walker Road. A few farm houses received hail from billiard ball to baseball size. Winds gusted to an estimated 70 mph in the Aurora-Naperville area. A gas station under construction at a shopping center was destroyed on Route 59 and Jefferson. The storm weaked over DuPage County but briefly reintensified in northern Cook County at Skokie.

The radar

The Chicago radar (KLOT), 42 km away, was scanning. The volume nearest the first event began at 21:42 UTC.

Open the radar archive at this moment

Event by event

8 hail, 2 thunderstorm wind. Local standard time, as filed.

Hail, Kendall

When
May 12, 3:45 PM CST
Where
Kendall County, Newark
Measured
1.75 in hail
Reported by
OFFICIAL NWS OBS.
Coordinates
41.533, -88.583

Hail, Kendall

When
May 12, 4:02 PM CST
Where
Kendall County, 2 mi S of Yorkville
Measured
3.5 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.600, -88.450

Hail, Kendall

When
May 12, 4:05 PM CST
Where
Kendall County, 3 mi ENE of Oswego
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.700, -88.300

Hail, Grundy

When
May 12, 4:06 PM CST
Where
Grundy County, 5 mi N of Morris
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.433, -88.417

Hail, Du Page

When
May 12, 4:15 PM CST
Where
Du Page County, Naperville
Measured
0.88 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.783, -88.150

Hail, Will

When
May 12, 4:15 PM CST
Where
Will County, 6 mi N of Plainfield
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.683, -88.200

Thunderstorm Wind, Will

When
May 12, 4:15 PM CST
Where
Will County, 6 mi N of Plainfield
Measured
61 kt (70 mph)
Reported by
TRAINED SPOTTER
Coordinates
41.683, -88.200

Hail, Du Page

When
May 12, 4:20 PM CST to 4:24 PM CST
Where
Du Page County, Naperville
Measured
1 in hail
Reported by
BROADCAST MEDIA
Coordinates
41.783, -88.150

Thunderstorm Wind, Du Page

When
May 12, 4:21 PM CST
Where
Du Page County, Naperville
Measured
61 kt (70 mph)
Reported by
TRAINED SPOTTER
Coordinates
41.783, -88.150

Hail, Cook

When
May 12, 5:05 PM CST
Where
Cook County, Skokie
Measured
0.75 in hail
Reported by
AMATEUR RADIO
Coordinates
42.033, -87.717

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.

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, May 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: 5145496, 5145497, 5143880, 5143887, 5143881, 5143882, 5143883, 5143884, 5143885, 5143886.