Hail and Damaging Winds in Illinois, September 21, 1973

Name: Hail and Damaging Winds in Illinois, September 21, 1973
Start: 1973-09-21T12:30
End: 1973-09-21T22:29
Location: Illinois

September 21, 1973 · 7 events in 3 counties and zones

4 hail, 3 thunderstorm wind, 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: 7

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

4 hail, 3 thunderstorm wind. Local standard time, as filed.

Hail, Carroll

When: September 21, 12:30 PM CST
Where: Carroll County
Measured: 0.75 in hail
Coordinates: 42.080, -90.150

Thunderstorm Wind, Carroll

When: September 21, 12:30 PM CST
Where: Carroll County
Coordinates: 42.080, -90.150

Hail, Ogle

When: September 21, 1:16 PM CST
Where: Ogle County
Measured: 1.75 in hail
Coordinates: 41.900, -89.200

Thunderstorm Wind, Ogle

When: September 21, 1:16 PM CST
Where: Ogle County
Measured: 50 kt (58 mph)
Coordinates: 41.900, -89.200

Hail, Ogle

When: September 21, 1:20 PM CST
Where: Ogle County
Measured: 3 in hail
Coordinates: 41.920, -89.070

Hail, Ogle

When: September 21, 2:15 PM CST
Where: Ogle County
Measured: 1 in hail
Coordinates: 42.200, -89.470

Thunderstorm Wind, Rock Island

When: September 21, 10:29 PM CST
Where: Rock Island County
Measured: 50 kt (58 mph)
Coordinates: 41.450, -90.520

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

Every storm in Illinois in 1973 Every state in 1973 This 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: 10007311, 10007312, 10007313, 10007314, 10007315, 10007316, 10007317.