Alert archive / Illinois / Severe Thunderstorm Warnings / 1986
Severe Thunderstorm Warnings in Illinois, September 1986
24 severe thunderstorm warnings in September 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 September 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 24
- Busiest day
- September 19, 198610 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 |
|---|---|---|---|---|
| Sep 10, 6:35 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 40 min |
| Sep 19, 12:36 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 44 min |
| Sep 19, 1:23 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 57 min |
| Sep 19, 2:03 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 57 min |
| Sep 19, 2:15 PM CDT | Severe Thunderstorm Warning | LSX | Scott | 45 min |
| Sep 19, 3:01 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Scott | 49 min |
| Sep 19, 3:06 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Piatt | 54 min |
| Sep 19, 3:17 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 58 min |
| Sep 19, 3:35 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Morgan | 55 min |
| Sep 19, 5:20 PM CDT | Severe Thunderstorm Warning | IND | Clay, Wayne | 40 min |
| Sep 19, 5:56 PM CDT | Severe Thunderstorm Warning | IND | Wayne | 64 min |
| Sep 19, 9:02 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 58 min |
| Sep 22, 6:41 PM CDT | Severe Thunderstorm Warning | ILX | Carroll, Ogle | 64 min |
| Sep 22, 7:31 PM CDT | Severe Thunderstorm Warning | ILX | Boone, Winnebago | 24 min |
| Sep 24, 6:41 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 64 min |
| Sep 25, 12:21 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 69 min |
| Sep 26, 1:19 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 31 min |
| Sep 26, 1:19 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 31 min |
| Sep 26, 1:25 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 30 min |
| Sep 28, 4:39 PM CDT | Severe Thunderstorm Warning | ILX | Stark | 66 min |
| Sep 28, 4:39 PM CDT | Severe Thunderstorm Warning | ILX | Putnam | 51 min |
| Sep 28, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | Boone, Winnebago | 61 min |
| Sep 28, 5:20 PM CDT | Severe Thunderstorm Warning | ILX | Stephenson | 55 min |
| Sep 29, 5:09 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 51 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County2
- Morgan County2
- Scott County2
- Wayne County2
- Boone County2
- Winnebago County2
- LaSalle County2
- Livingston County2
- Jo Daviess County1
- Brown County1
- Pike County1
- Cass County1
- Greene County1
- DeWitt County1
- Piatt County1
- Champaign County1
- Vermilion County1
- Macoupin County1
- Clay County1
- McLean County1
- Carroll County1
- Ogle County1
- Cook County1
- Will County1
- Kankakee County1
- Sangamon County1
- Stark County1
- Putnam County1
- Stephenson County1
- Montgomery 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.