Thunderstorm Wind, Jersey
- When
- December 15, 3:00 AM CST
- Where
- Jersey County
- Coordinates
- 39.000, -90.180
Tornadoes and Damaging Winds in Illinois, December 15, 1971
5 thunderstorm wind, 2 tornado, 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
The toll
- Deaths
- 0
- Injuries
- 24
- Property damage
- $500,000
- 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
5 thunderstorm wind, 2 tornado. Local standard time, as filed.
Thunderstorm Wind, St. Clair
- When
- December 15, 3:15 AM CST
- Where
- St. Clair County
- Measured
- 50 kt (58 mph)
- Coordinates
- 38.500, -89.780
Thunderstorm Wind, Coles
- When
- December 15, 4:35 AM CST
- Where
- Coles County
- Coordinates
- 39.500, -88.180
Tornado, Coles
- When
- December 15, 5:05 AM CST
- Where
- Coles County
- Rating
- F1
- Path length
- 11.4 mi
- Path width
- 350 yd
- Injuries
- 24 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 39.520, -88.220
Thunderstorm Wind, Iroquois
- When
- December 15, 5:05 AM CST
- Where
- Iroquois County
- Coordinates
- 40.500, -87.680
Tornado, Douglas
- When
- December 15, 5:29 AM CST
- Where
- Douglas County
- Rating
- F1
- Path width
- 350 yd
- Property damage
- $250,000
- Coordinates
- 39.650, -88.080
Thunderstorm Wind, Adams
- When
- December 15, 6:11 AM CST
- Where
- Adams County
- Measured
- 52 kt (60 mph)
- Coordinates
- 39.880, -91.180
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.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Damaging Winds in Missouri, December 15, 1971
- Tornadoes in Mississippi, December 15, 1971
- Tornado and Damaging Winds in Arkansas, December 15, 1971
- Tornadoes in Kentucky, December 15, 1971
- Tornado and Damaging Wind in Tennessee, December 15, 1971
- Damaging Winds in Indiana, December 15, 1971
More
Every storm in Illinois in 1971Every state in 1971This day in weather historyThe tornado archive for Illinois, 1971
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: 10010111, 10010112, 10010113, 10010114, 10010115, 10010116, 10010117.