Alert archive / Illinois / LaSalle County
Tornado Warnings in LaSalle County, Illinois
97 tornado warnings since 1986. An alert counts here when it covered this county. The archive of tornado warnings reaches back to 1986.
LaSalle County and its neighbors
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Tornado Warnings
- 97
- Busiest year
- 200410 tornado warnings
- Average year
- 3over 28 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
The latest tornado warnings
The most recent on file, newest first.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 12, 8:37 AM CDT | Tornado Warning | LOT | 38 min |
| Aug 9, 11:59 PM CDT | Tornado Warning | LOT | 17 min |
| Aug 9, 11:36 PM CDT | Tornado Warning | LOT | 24 min |
| Aug 9, 11:22 PM CDT | Tornado Warning | LOT | 23 min |
| Jun 11, 5:55 PM CDT | Tornado Warning | LOT | 37 min |
| Jun 11, 5:15 PM CDT | Tornado Warning | LOT | 60 min |
| Apr 17, 8:46 PM CDT | Tornado Warning | LOT | 47 min |
| Apr 17, 8:29 PM CDT | Tornado Warning | LOT | 46 min |
| Apr 17, 8:07 PM CDT | Tornado Warning | LOT | 38 min |
| Mar 10, 8:36 PM CDT | Tornado Warning | LOT | 18 min |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive
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.