Alert archive / Illinois / Severe Thunderstorm Warnings / 1986
Severe Thunderstorm Warnings in Illinois, July 1986
70 severe thunderstorm warnings in July 1986. 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 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 70
- Busiest day
- July 11, 198614 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 1, 1:41 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 34 min |
| Jul 1, 4:55 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 35 min |
| Jul 6, 7:04 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 26 min |
| Jul 8, 7:10 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 20 min |
| Jul 8, 7:10 PM CDT | Severe Thunderstorm Warning | ILX | Carroll | 20 min |
| Jul 8, 7:39 PM CDT | Severe Thunderstorm Warning | ILX | Stephenson, Winnebago | 66 min |
| Jul 8, 8:29 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 31 min |
| Jul 8, 9:20 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 40 min |
| Jul 9, 5:22 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 38 min |
| Jul 9, 5:58 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 47 min |
| Jul 9, 6:05 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 55 min |
| Jul 10, 3:19 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 56 min |
| Jul 10, 5:51 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard | 54 min |
| Jul 10, 6:01 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kankakee, Will | 59 min |
| Jul 10, 6:01 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 59 min |
| Jul 10, 6:19 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 56 min |
| Jul 10, 6:27 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 48 min |
| Jul 10, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 45 min |
| Jul 10, 7:35 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon | 55 min |
| Jul 10, 7:57 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 63 min |
| Jul 10, 7:57 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 63 min |
| Jul 10, 8:01 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 59 min |
| Jul 10, 8:17 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 58 min |
| Jul 11, 2:59 PM CDT | Severe Thunderstorm Warning | ILX | Edgar, Vermilion | 61 min |
| Jul 11, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Washington | 60 min |
| Jul 11, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph | 60 min |
| Jul 11, 5:07 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 53 min |
| Jul 11, 5:45 PM CDT | Severe Thunderstorm Warning | LSX | Perry | 60 min |
| Jul 11, 5:45 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 60 min |
| Jul 11, 6:00 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 45 min |
| Jul 11, 6:45 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 60 min |
| Jul 12, 1:22 PM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph | 60 min |
| Jul 12, 2:15 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 30 min |
| Jul 12, 2:45 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 30 min |
| Jul 12, 2:55 PM CDT | Severe Thunderstorm Warning | IND | White | 35 min |
| Jul 12, 3:35 PM CDT | Severe Thunderstorm Warning | PAH | Union | 40 min |
| Jul 14, 8:08 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Hamilton | 67 min |
| Jul 15, 7:25 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 65 min |
| Jul 19, 6:41 PM CDT | Severe Thunderstorm Warning | ILX | Winnebago | 39 min |
| Jul 19, 6:41 PM CDT | Severe Thunderstorm Warning | ILX | Boone | 54 min |
| Jul 19, 6:53 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 67 min |
| Jul 28, 12:35 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 40 min |
| Jul 28, 2:58 AM CDT | Severe Thunderstorm Warning | ILX | Shelby | 62 min |
| Jul 29, 12:30 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 45 min |
| Jul 29, 12:55 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 45 min |
| Jul 29, 1:01 AM CDT | Severe Thunderstorm Warning | ILX | Hancock | 59 min |
| Jul 29, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 40 min |
| Jul 29, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Brown | 40 min |
| Jul 29, 1:36 AM CDT | Severe Thunderstorm Warning | ILX | McDonough, Schuyler | 27 min |
| Jul 29, 1:45 AM CDT | Severe Thunderstorm Warning | LSX | Scott | 45 min |
| Jul 29, 2:10 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 50 min |
| Jul 29, 2:40 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 50 min |
| Jul 29, 3:10 AM CDT | Severe Thunderstorm Warning | LSX | Madison | 50 min |
| Jul 29, 3:13 AM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon | 62 min |
| Jul 29, 3:53 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Montgomery | 67 min |
| Jul 30, 2:56 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Morgan | 49 min |
| Jul 30, 5:10 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pope | 50 min |
| Jul 31, 1:36 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria | 69 min |
| Jul 31, 1:43 AM CDT | Severe Thunderstorm Warning | DVN | Mercer | 57 min |
| Jul 31, 2:48 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer | 57 min |
| Jul 31, 2:53 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria | 22 min |
| Jul 31, 3:17 AM CDT | Severe Thunderstorm Warning | ILX | Macon, Moultrie, Piatt | 58 min |
| Jul 31, 3:17 AM CDT | Severe Thunderstorm Warning | ILX | Douglas | 58 min |
| Jul 31, 4:11 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 19 min |
| Jul 31, 4:36 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 24 min |
| Jul 31, 4:53 AM CDT | Severe Thunderstorm Warning | ILX | Christian | 52 min |
| Jul 31, 5:15 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 45 min |
| Jul 31, 5:35 AM CDT | Severe Thunderstorm Warning | ILX | Moultrie, Shelby | 40 min |
| Jul 31, 5:49 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland | 41 min |
| Jul 31, 6:58 AM CDT | Severe Thunderstorm Warning | IND | Edwards, Wabash, White | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Sangamon County5
- Lake County3
- Adams County3
- Pike County3
- Macon County3
- Morgan County3
- Perry County3
- Jefferson County2
- Washington County2
- Whiteside County2
- Winnebago County2
- Clinton County2
- Saint Clair County2
- Marion County2
- Montgomery County2
- Menard County2
- Livingston County2
- Piatt County2
- Randolph County2
- Jackson County2
- Madison County2
- Franklin County2
- White County2
- McHenry County2
- Shelby County2
- Christian County2
- Fulton County2
- Peoria County2
- Mercer County2
- Moultrie County2
- Carroll County1
- Stephenson County1
- Rock Island County1
- Logan County1
- Grundy County1
- Kankakee County1
- Will County1
- Ford County1
- DeWitt County1
- Cass County1
24 more counties
- Edgar County1
- Vermilion County1
- Williamson County1
- Union County1
- Hamilton County1
- Boone County1
- Hancock County1
- Brown County1
- McDonough County1
- Schuyler County1
- Scott County1
- Calhoun County1
- Greene County1
- Jersey County1
- Macoupin County1
- Johnson County1
- Massac County1
- Pope County1
- Henry County1
- Douglas County1
- Coles County1
- Cumberland County1
- Edwards County1
- Wabash County1
Nearby
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.