Alert archive / Illinois / Tornado Warnings / 1991
Tornado Warnings in Illinois, May 1991
24 tornado warnings in May 1991. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in May 1991. Tap one for its archive.
- Tornado Warnings
- 24
- Busiest day
- May 14, 19917 tornado warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 5:25 PM CDT | Tornado Warning | LOT | Cook, DuPage | 50 min |
| May 5, 5:37 PM CDT | Tornado Warning | LOT | Lake | 53 min |
| May 10, 4:10 PM CDT | Tornado Warning | LSX | Saint Clair, Washington | 41 min |
| May 14, 10:38 AM CDT | Tornado Warning | ILX | Tazewell | 67 min |
| May 14, 11:12 AM CDT | Tornado Warning | ILX | DeWitt, Macon | 63 min |
| May 14, 11:14 AM CDT | Tornado Warning | ILX | McLean | 61 min |
| May 14, 12:15 PM CDT | Tornado Warning | ILX | McLean | 35 min |
| May 14, 1:20 PM CDT | Tornado Warning | ILX | Coles, Douglas, Moultrie | 25 min |
| May 14, 2:00 PM CDT | Tornado Warning | ILX | Coles, Douglas, Edgar | 45 min |
| May 14, 2:48 PM CDT | Tornado Warning | ILX | Clark | 27 min |
| May 16, 2:17 PM CDT | Tornado Warning | ILX | Champaign | 28 min |
| May 16, 2:19 PM CDT | Tornado Warning | ILX | McLean | 26 min |
| May 16, 2:51 PM CDT | Tornado Warning | ILX | McLean | 54 min |
| May 17, 4:48 PM CDT | Tornado Warning | DVN | Rock Island | 27 min |
| May 17, 5:02 PM CDT | Tornado Warning | DVN | Rock Island | 28 min |
| May 17, 8:11 PM CDT | Tornado Warning | ILX | Fulton, Knox, Peoria | 64 min |
| May 17, 8:50 PM CDT | Tornado Warning | ILX | Fulton, Peoria | 55 min |
| May 17, 10:48 PM CDT | Tornado Warning | ILX | Macon | 42 min |
| May 17, 11:09 PM CDT | Tornado Warning | ILX | Mason | 66 min |
| May 18, 3:34 PM CDT | Tornado Warning | LSX | Adams, Brown, Pike | 56 min |
| May 22, 6:15 PM CDT | Tornado Warning | LOT | Will | 45 min |
| May 22, 6:33 PM CDT | Tornado Warning | LOT | Cook, DuPage | 42 min |
| May 23, 5:36 PM CDT | Tornado Warning | LOT | DuPage | 39 min |
| May 31, 3:27 PM CDT | Tornado Warning | DVN | Henry, Rock Island | 33 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McLean County4
- DuPage County3
- Rock Island County3
- Cook County2
- Macon County2
- Coles County2
- Douglas County2
- Fulton County2
- Peoria County2
- Lake County1
- Saint Clair County1
- Washington County1
- Tazewell County1
- DeWitt County1
- Moultrie County1
- Edgar County1
- Clark County1
- Champaign County1
- Knox County1
- Mason County1
- Adams County1
- Brown County1
- Pike County1
- Will County1
- Henry County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.