Alert archive / Illinois / Severe Thunderstorm Warnings / 1997
Severe Thunderstorm Warnings in Illinois, September 1997
14 severe thunderstorm warnings in September 1997. 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 1997. Tap one for its archive.
- Severe Thunderstorm Warnings
- 14
- Busiest day
- September 17, 19979 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 2, 5:23 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 52 min |
| Sep 8, 11:54 AM CDT | Severe Thunderstorm Warning | PAH | Franklin, Saline | 36 min |
| Sep 16, 6:47 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 48 min |
| Sep 16, 7:50 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 50 min |
| Sep 16, 8:29 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 46 min |
| Sep 16, 8:34 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 46 min |
| Sep 16, 8:40 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Stephenson | 50 min |
| Sep 16, 8:51 PM CDT | Severe Thunderstorm Warning | LOT | Ogle, Winnebago | 54 min |
| Sep 16, 8:54 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 56 min |
| Sep 16, 10:09 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Stark | 36 min |
| Sep 16, 10:22 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 38 min |
| Sep 16, 10:46 PM CDT | Severe Thunderstorm Warning | DVN | Putnam | 34 min |
| Sep 19, 8:00 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 30 min |
| Sep 19, 8:17 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 28 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clinton County1
- Franklin County1
- Saline County1
- Jo Daviess County1
- Mercer County1
- Rock Island County1
- Henry County1
- Whiteside County1
- Carroll County1
- Stephenson County1
- Ogle County1
- Winnebago County1
- Lee County1
- Peoria County1
- Stark County1
- Marshall County1
- Woodford County1
- Putnam County1
- DeWitt County1
- McLean County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19961998
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.