Alert archive / Illinois / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Illinois, July 2020
125 severe thunderstorm warnings in July 2020. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in July 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 125
- Busiest day
- July 12, 202022 severe thunderstorm 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 |
|---|---|---|---|---|
| Jul 8, 2:48 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 42 min |
| Jul 8, 3:12 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 33 min |
| Jul 8, 4:17 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 28 min |
| Jul 8, 4:24 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 36 min |
| Jul 8, 4:40 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Jasper, Lawrence, Richland | 50 min |
| Jul 8, 4:55 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island | 35 min |
| Jul 8, 5:52 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 38 min |
| Jul 8, 6:27 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette | 33 min |
| Jul 9, 12:59 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 31 min |
| Jul 9, 4:22 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 23 min |
| Jul 9, 5:08 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 52 min |
| Jul 9, 5:35 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 40 min |
| Jul 9, 6:06 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Mercer, Warren | 39 min |
| Jul 9, 6:09 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Rock Island, Whiteside | 51 min |
| Jul 9, 7:01 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 44 min |
| Jul 9, 7:04 PM CDT | Severe Thunderstorm Warning | DVN | Warren | 11 min |
| Jul 9, 7:14 PM CDT | Severe Thunderstorm Warning | DVN | Warren | 16 min |
| Jul 9, 7:24 PM CDT | Severe Thunderstorm Warning | DVN | McDonough, Warren | 21 min |
| Jul 9, 7:38 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria, Stark | 67 min |
| Jul 9, 8:41 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason, Peoria, Tazewell | 45 min |
| Jul 9, 9:16 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Tazewell | 44 min |
| Jul 11, 12:54 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 66 min |
| Jul 11, 1:44 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 61 min |
| Jul 11, 2:55 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 50 min |
| Jul 11, 4:04 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 56 min |
| Jul 11, 4:11 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, McLean, Piatt | 64 min |
| Jul 11, 4:19 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 26 min |
| Jul 11, 4:29 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 61 min |
| Jul 11, 4:59 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 61 min |
| Jul 11, 5:31 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 59 min |
| Jul 11, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 65 min |
| Jul 11, 6:00 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 27 min |
| Jul 11, 6:31 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Edgar | 29 min |
| Jul 11, 6:46 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 44 min |
| Jul 11, 6:48 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 42 min |
| Jul 11, 6:57 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer, Rock Island, Whiteside | 48 min |
| Jul 11, 7:27 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer | 48 min |
| Jul 11, 7:38 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Whiteside | 52 min |
| Jul 11, 7:38 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Peoria, Stark | 37 min |
| Jul 11, 7:44 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 46 min |
| Jul 11, 7:55 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 50 min |
| Jul 11, 8:02 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 43 min |
| Jul 11, 8:03 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 57 min |
| Jul 11, 8:07 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Woodford | 38 min |
| Jul 11, 8:22 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell | 38 min |
| Jul 11, 8:25 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee, Livingston | 80 min |
| Jul 11, 8:27 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, McLean, Peoria, Tazewell, Woodford | 49 min |
| Jul 11, 8:41 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 19 min |
| Jul 11, 8:42 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 31 min |
| Jul 11, 8:55 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 80 min |
| Jul 11, 9:03 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Mason, Tazewell | 42 min |
| Jul 11, 9:15 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall | 60 min |
| Jul 11, 9:23 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, Logan, McLean, Macon, Piatt | 67 min |
| Jul 11, 10:08 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee, Will | 67 min |
| Jul 11, 10:11 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Coles, Douglas, Edgar, Macon, Moultrie and 3 more | 49 min |
| Jul 12, 12:13 AM CDT | Severe Thunderstorm Warning | PAH | Wayne | 32 min |
| Jul 12, 12:48 AM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Hardin | 42 min |
| Jul 12, 1:19 AM CDT | Severe Thunderstorm Warning | PAH | Wayne, White | 41 min |
| Jul 15, 9:56 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 49 min |
| Jul 15, 12:51 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason, Peoria, Tazewell | 54 min |
| Jul 15, 2:15 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Peoria, Tazewell, Woodford | 60 min |
| Jul 15, 3:12 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Woodford | 48 min |
| Jul 15, 3:28 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 62 min |
| Jul 15, 3:55 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 35 min |
| Jul 15, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 40 min |
| Jul 15, 4:48 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Macoupin, Montgomery | 42 min |
| Jul 15, 4:58 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Monroe, Saint Clair, Washington | 47 min |
| Jul 15, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Macoupin, Montgomery | 43 min |
| Jul 15, 5:19 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Madison | 41 min |
| Jul 15, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 45 min |
| Jul 15, 5:35 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 40 min |
| Jul 15, 5:40 PM CDT | Severe Thunderstorm Warning | ILX | Shelby | 50 min |
| Jul 15, 5:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 47 min |
| Jul 15, 5:46 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette | 44 min |
| Jul 15, 5:53 PM CDT | Severe Thunderstorm Warning | ILX | Effingham, Shelby | 37 min |
| Jul 15, 6:01 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 44 min |
| Jul 15, 6:10 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 50 min |
| Jul 15, 6:17 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Douglas, Moultrie, Shelby | 43 min |
| Jul 15, 6:25 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 50 min |
| Jul 15, 6:31 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Cumberland, Effingham, Shelby | 44 min |
| Jul 15, 7:04 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more | 56 min |
| Jul 15, 7:19 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 41 min |
| Jul 15, 7:38 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 14 min |
| Jul 15, 7:40 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 50 min |
| Jul 15, 8:01 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Richland | 44 min |
| Jul 15, 8:04 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 29 min |
| Jul 15, 8:52 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union | 38 min |
| Jul 15, 9:26 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Richland | 49 min |
| Jul 18, 11:03 AM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 42 min |
| Jul 18, 12:44 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Ogle | 38 min |
| Jul 19, 8:27 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, Mercer, Warren | 48 min |
| Jul 19, 8:47 AM CDT | Severe Thunderstorm Warning | DVN | Mercer | 43 min |
| Jul 19, 9:30 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Putnam | 45 min |
| Jul 19, 9:33 AM CDT | Severe Thunderstorm Warning | ILX | Knox, Marshall, Stark | 42 min |
| Jul 19, 10:03 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 57 min |
| Jul 19, 10:11 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 34 min |
| Jul 19, 10:19 AM CDT | Severe Thunderstorm Warning | ILX | Marshall | 26 min |
| Jul 19, 10:22 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 53 min |
| Jul 19, 10:35 AM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall | 40 min |
| Jul 19, 10:40 AM CDT | Severe Thunderstorm Warning | LOT | Livingston | 35 min |
| Jul 19, 11:02 AM CDT | Severe Thunderstorm Warning | LOT | Will | 28 min |
| Jul 19, 11:38 AM CDT | Severe Thunderstorm Warning | LOT | Cook | 22 min |
| Jul 19, 1:33 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 42 min |
| Jul 19, 5:00 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 26 min |
| Jul 19, 5:40 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Edgar | 50 min |
| Jul 19, 8:08 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 39 min |
| Jul 20, 3:08 PM CDT | Severe Thunderstorm Warning | PAH | Hardin, Pope | 37 min |
| Jul 20, 3:12 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 33 min |
| Jul 21, 10:48 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, McLean, Piatt | 42 min |
| Jul 21, 11:29 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 61 min |
| Jul 21, 1:36 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 39 min |
| Jul 21, 2:07 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 23 min |
| Jul 21, 2:12 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 48 min |
| Jul 21, 2:28 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 47 min |
| Jul 21, 2:41 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Scott | 64 min |
| Jul 21, 2:51 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 54 min |
| Jul 21, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison | 48 min |
| Jul 21, 3:12 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 48 min |
| Jul 21, 3:20 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 28 min |
| Jul 21, 3:38 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Madison | 30 min |
| Jul 21, 3:45 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 45 min |
| Jul 21, 4:39 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon, Shelby | 44 min |
| Jul 21, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Macon, Moultrie, Piatt, Shelby | 46 min |
| Jul 21, 6:37 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 38 min |
| Jul 21, 7:14 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Crawford | 34 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McLean County13
- Mercer County10
- Champaign County10
- Rock Island County9
- Henry County8
- Peoria County8
- Tazewell County8
- Fayette County7
- Livingston County7
- Woodford County7
- Piatt County7
- Shelby County7
- Saint Clair County6
- Edgar County6
- Clinton County6
- Whiteside County5
- Bond County5
- Warren County5
- Bureau County5
- Madison County5
- Monroe County4
- Richland County4
- Knox County4
- Fulton County4
- Mason County4
- Iroquois County4
- Ford County4
- Douglas County4
- Vermilion County4
- Clark County4
- Putnam County4
- Marshall County4
- Macon County4
- Macoupin County4
- Clay County4
- Jackson County4
- Calhoun County4
- Crawford County3
- Jo Daviess County3
- Stark County3
42 more counties
- Logan County3
- LaSalle County3
- DeWitt County3
- Moultrie County3
- Montgomery County3
- Effingham County3
- Cumberland County3
- Jersey County3
- Sangamon County3
- Jasper County2
- Lawrence County2
- Henderson County2
- Kankakee County2
- Lee County2
- DeKalb County2
- Grundy County2
- Kendall County2
- Will County2
- Coles County2
- Wayne County2
- Hardin County2
- Washington County2
- Randolph County2
- Pope County2
- Pike County2
- Morgan County2
- McDonough County1
- Gallatin County1
- White County1
- Adams County1
- Marion County1
- Perry County1
- Union County1
- Stephenson County1
- Ogle County1
- Cook County1
- Massac County1
- Cass County1
- Scott County1
- Greene County1
- Menard County1
- Christian County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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. Warning verification from the Mesonet's Cow. Rebuilt daily.