Alert archive / Illinois / Tornado Warnings / 2021
Tornado Warnings in Illinois, October 2021
26 tornado warnings in October 2021. 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 October 2021. Tap one for its archive.
- Tornado Warnings
- 26
- Busiest day
- October 11, 202112 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 |
|---|---|---|---|---|
| Oct 3, 3:28 PM CDT | Tornado Warning | LOT | Iroquois | 17 min |
| Oct 11, 1:02 PM CDT | Tornado Warning | LSX | Bond, Macoupin, Madison, Montgomery | 28 min |
| Oct 11, 2:38 PM CDT | Tornado Warning | LSX | Greene | 21 min |
| Oct 11, 2:50 PM CDT | Tornado Warning | ILX | Morgan | 25 min |
| Oct 11, 3:12 PM CDT | Tornado Warning | ILX | Morgan, Sangamon | 33 min |
| Oct 11, 3:32 PM CDT | Tornado Warning | ILX | Cass, Menard, Morgan, Sangamon | 30 min |
| Oct 11, 3:50 PM CDT | Tornado Warning | ILX | Fulton, Mason, Tazewell | 25 min |
| Oct 11, 4:21 PM CDT | Tornado Warning | ILX | Logan, Mason | 24 min |
| Oct 11, 4:47 PM CDT | Tornado Warning | ILX | Marshall, Woodford | 28 min |
| Oct 11, 5:12 PM CDT | Tornado Warning | DVN | Putnam | 48 min |
| Oct 11, 5:38 PM CDT | Tornado Warning | ILX | Woodford | 20 min |
| Oct 11, 5:58 PM CDT | Tornado Warning | DVN | Bureau, Putnam | 47 min |
| Oct 11, 6:49 PM CDT | Tornado Warning | LOT | LaSalle, Lee | 13 min |
| Oct 24, 5:17 PM CDT | Tornado Warning | LSX | Calhoun, Greene, Pike | 43 min |
| Oct 24, 6:06 PM CDT | Tornado Warning | ILX | Cass, Morgan, Scott | 24 min |
| Oct 24, 6:38 PM CDT | Tornado Warning | ILX | Menard, Sangamon | 26 min |
| Oct 24, 8:03 PM CDT | Tornado Warning | LSX | Monroe, Randolph | 42 min |
| Oct 24, 8:34 PM CDT | Tornado Warning | LSX | Randolph | 41 min |
| Oct 24, 9:00 PM CDT | Tornado Warning | LSX | Clinton, Randolph, Saint Clair, Washington | 45 min |
| Oct 24, 9:08 PM CDT | Tornado Warning | LSX | Randolph | 40 min |
| Oct 24, 9:15 PM CDT | Tornado Warning | LSX | Randolph | 19 min |
| Oct 24, 9:33 PM CDT | Tornado Warning | LSX | Saint Clair | 30 min |
| Oct 24, 9:48 PM CDT | Tornado Warning | LSX | Bond, Clinton, Madison | 42 min |
| Oct 24, 9:57 PM CDT | Tornado Warning | ILX | Christian, Macon, Shelby | 21 min |
| Oct 24, 9:58 PM CDT | Tornado Warning | LSX | Marion, Washington | 16 min |
| Oct 24, 10:01 PM CDT | Tornado Warning | PAH | Jefferson | 6 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Randolph County5
- Morgan County4
- Sangamon County3
- Bond County2
- Madison County2
- Greene County2
- Cass County2
- Menard County2
- Mason County2
- Woodford County2
- Putnam County2
- Clinton County2
- Saint Clair County2
- Washington County2
- Iroquois County1
- Macoupin County1
- Montgomery County1
- Fulton County1
- Tazewell County1
- Logan County1
- Marshall County1
- Bureau County1
- LaSalle County1
- Lee County1
- Calhoun County1
- Pike County1
- Scott County1
- Monroe County1
- Christian County1
- Macon County1
- Shelby County1
- Marion County1
- Jefferson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.