Alert archive / Illinois / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Illinois, June 2020
71 severe thunderstorm warnings in June 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 June 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 71
- Busiest day
- June 22, 202015 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 |
|---|---|---|---|---|
| Jun 3, 7:01 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 17 min |
| Jun 3, 8:12 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 33 min |
| Jun 3, 9:24 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, Warren | 36 min |
| Jun 3, 10:01 AM CDT | Severe Thunderstorm Warning | ILX | Knox | 44 min |
| Jun 3, 2:47 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 43 min |
| Jun 3, 3:22 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 53 min |
| Jun 3, 4:14 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 46 min |
| Jun 3, 7:05 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 55 min |
| Jun 3, 7:23 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 52 min |
| Jun 3, 8:18 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 42 min |
| Jun 3, 8:27 PM CDT | Severe Thunderstorm Warning | ILX | Douglas, Edgar | 63 min |
| Jun 3, 8:57 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 48 min |
| Jun 4, 1:07 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland, Edgar | 23 min |
| Jun 4, 1:28 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Crawford, Cumberland, Edgar, Jasper | 32 min |
| Jun 4, 9:11 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 49 min |
| Jun 4, 9:56 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 49 min |
| Jun 4, 10:11 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 49 min |
| Jun 4, 10:50 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 40 min |
| Jun 9, 11:12 AM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pope | 33 min |
| Jun 9, 3:01 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 29 min |
| Jun 9, 3:20 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 25 min |
| Jun 9, 3:34 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 41 min |
| Jun 9, 7:25 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 50 min |
| Jun 10, 2:23 AM CDT | Severe Thunderstorm Warning | LOT | Ogle | 27 min |
| Jun 10, 8:14 AM CDT | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 76 min |
| Jun 20, 6:06 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell, Woodford | 14 min |
| Jun 20, 6:48 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 42 min |
| Jun 20, 7:58 PM CDT | Severe Thunderstorm Warning | LOT | Kendall, Will | 32 min |
| Jun 20, 8:20 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 25 min |
| Jun 21, 1:51 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 39 min |
| Jun 21, 3:08 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 52 min |
| Jun 21, 4:15 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 30 min |
| Jun 21, 6:07 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 38 min |
| Jun 22, 12:36 PM CDT | Severe Thunderstorm Warning | LOT | Will | 39 min |
| Jun 22, 1:12 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 63 min |
| Jun 22, 1:28 PM CDT | Severe Thunderstorm Warning | LOT | Will | 48 min |
| Jun 22, 2:04 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 26 min |
| Jun 22, 2:41 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Logan, Macon, Sangamon | 49 min |
| Jun 22, 2:59 PM CDT | Severe Thunderstorm Warning | DVN | Henderson | 46 min |
| Jun 22, 3:27 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 50 min |
| Jun 22, 3:39 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Sangamon | 51 min |
| Jun 22, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Hancock | 63 min |
| Jun 22, 4:18 PM CDT | Severe Thunderstorm Warning | DVN | Putnam | 27 min |
| Jun 22, 4:19 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 41 min |
| Jun 22, 4:34 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 41 min |
| Jun 22, 4:40 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 50 min |
| Jun 22, 4:51 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 39 min |
| Jun 22, 5:24 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 33 min |
| Jun 26, 4:40 PM CDT | Severe Thunderstorm Warning | DVN | Carroll | 21 min |
| Jun 26, 4:48 PM CDT | Severe Thunderstorm Warning | LOT | Ogle | 57 min |
| Jun 26, 5:16 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 29 min |
| Jun 26, 5:17 PM CDT | Severe Thunderstorm Warning | LOT | Ogle | 43 min |
| Jun 26, 5:37 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 68 min |
| Jun 26, 5:42 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 48 min |
| Jun 26, 5:47 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 28 min |
| Jun 26, 5:50 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 70 min |
| Jun 26, 6:34 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 56 min |
| Jun 26, 7:01 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane, Kendall | 44 min |
| Jun 26, 8:22 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Grundy, Kankakee, LaSalle, Livingston, Will | 53 min |
| Jun 26, 8:39 PM CDT | Severe Thunderstorm Warning | ILX | Marshall | 21 min |
| Jun 26, 8:53 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 40 min |
| Jun 27, 3:44 AM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 28 min |
| Jun 27, 4:34 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 41 min |
| Jun 27, 9:29 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 31 min |
| Jun 28, 9:35 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 25 min |
| Jun 28, 9:46 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 44 min |
| Jun 28, 10:07 AM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 38 min |
| Jun 29, 3:20 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kane, Lake, McHenry | 25 min |
| Jun 29, 4:11 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 64 min |
| Jun 30, 5:10 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union | 50 min |
| Jun 30, 5:27 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski, Union | 48 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County13
- Will County8
- Pike County6
- Rock Island County5
- Adams County5
- DuPage County5
- Henry County4
- Whiteside County3
- Brown County3
- Edgar County3
- Ogle County3
- Sangamon County3
- Kane County3
- Putnam County2
- Henderson County2
- Knox County2
- Calhoun County2
- Fulton County2
- Clark County2
- Cumberland County2
- Lake County2
- McHenry County2
- Kankakee County2
- Kendall County2
- Christian County2
- Macon County2
- Jo Daviess County2
- Stephenson County2
- DeKalb County2
- LaSalle County2
- Livingston County2
- Iroquois County2
- Union County2
- Bureau County1
- Warren County1
- Douglas County1
- Coles County1
- Crawford County1
- Jasper County1
- Johnson County1
21 more counties
- Massac County1
- Pope County1
- Peoria County1
- Tazewell County1
- Woodford County1
- Champaign County1
- Vermilion County1
- Macoupin County1
- McLean County1
- Logan County1
- Hancock County1
- Carroll County1
- Lee County1
- Grundy County1
- Marshall County1
- Randolph County1
- Morgan County1
- Scott County1
- Jackson County1
- Alexander County1
- Pulaski 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.