Alert archive / Illinois / Williamson County / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Williamson County, Illinois, 2017
11 severe thunderstorm warnings in 2017. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.
Williamson County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 11
- Busiest month
- March4 severe thunderstorm warnings
- Busiest day
- March 1, 20174 severe thunderstorm warnings
Over time
By month
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 | Lasted |
|---|---|---|---|
| Feb 28, 10:34 PM CST | Severe Thunderstorm Warning | PAH | 26 min |
| Feb 28, 10:54 PM CST | Severe Thunderstorm Warning | PAH | 36 min |
| Mar 1, 4:33 AM CST | Severe Thunderstorm Warning | PAH | 27 min |
| Mar 1, 4:39 AM CST | Severe Thunderstorm Warning | PAH | 36 min |
| Apr 28, 10:49 PM CDT | Severe Thunderstorm Warning | PAH | 41 min |
| Apr 28, 11:29 PM CDT | Severe Thunderstorm Warning | PAH | 46 min |
| May 27, 3:34 PM CDT | Severe Thunderstorm Warning | PAH | 41 min |
| May 27, 4:01 PM CDT | Severe Thunderstorm Warning | PAH | 44 min |
| Sep 4, 10:06 PM CDT | Severe Thunderstorm Warning | PAH | 21 min |
| Sep 18, 8:25 PM CDT | Severe Thunderstorm Warning | PAH | 35 min |
| Sep 18, 8:50 PM CDT | Severe Thunderstorm Warning | PAH | 14 min |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.