Illinois, 1973

Hail and Damaging Winds in Illinois, May 1, 1973

May 1, 1973 · 10 events in 9 counties and zones

6 thunderstorm wind, 4 hail, as filed by the National Weather Service.

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.

Event by event

6 thunderstorm wind, 4 hail. Local standard time, as filed.

Thunderstorm Wind, Kane

When
May 1, 2:50 PM CST
Where
Kane County
Coordinates
42.000, -88.400

Hail, Mercer

When
May 1, 3:03 PM CST
Where
Mercer County
Measured
1.5 in hail
Coordinates
41.220, -90.750

Thunderstorm Wind, Brown

When
May 1, 3:40 PM CST
Where
Brown County
Coordinates
39.980, -90.770

Hail, Lee

When
May 1, 5:30 PM CST
Where
Lee County
Measured
1 in hail
Coordinates
41.830, -89.480

Hail, Knox

When
May 1, 6:30 PM CST
Where
Knox County
Measured
1.75 in hail
Coordinates
41.100, -90.300

Hail, Henry

When
May 1, 7:00 PM CST
Where
Henry County
Measured
0.75 in hail
Coordinates
41.200, -90.000

Thunderstorm Wind, Hancock

When
May 1, 8:30 PM CST
Where
Hancock County
Coordinates
40.400, -91.200

Thunderstorm Wind, McDonough

When
May 1, 8:30 PM CST
Where
McDonough County
Coordinates
40.600, -90.900

Thunderstorm Wind, Hancock

When
May 1, 8:40 PM CST
Where
Hancock County
Coordinates
40.400, -91.400

Thunderstorm Wind, Tazewell

When
May 1, 10:15 PM CST
Where
Tazewell County
Coordinates
40.500, -89.700

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

More

Every storm in Illinois in 1973Every state in 1973This day in weather history

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: 10007904, 10007905, 10007906, 10007907, 10007908, 10007909, 10007910, 10007911, 10007912, 10007913.