Alert archive / Illinois / LaSalle County / Tornado Warnings

Tornado Warnings in LaSalle County, Illinois, 2026

10 tornado warnings in 2026. 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 in 2026. Tap one for its archive.

Tornado Warnings
10
Busiest month
August4 tornado warnings
Busiest day
April 18, 20263 tornado 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.

IssuedProductOfficeLasted
Mar 10, 8:36 PM CDTTornado WarningLOT18 min
Apr 17, 8:07 PM CDTTornado WarningLOT38 min
Apr 17, 8:29 PM CDTTornado WarningLOT46 min
Apr 17, 8:46 PM CDTTornado WarningLOT47 min
Jun 11, 5:15 PM CDTTornado Warning Tornado observedConsiderable damage threatLOT60 min
Jun 11, 5:55 PM CDTTornado Warning Tornado observedConsiderable damage threatLOT37 min
Aug 9, 11:22 PM CDTTornado WarningLOT23 min
Aug 9, 11:36 PM CDTTornado WarningLOT24 min
Aug 9, 11:59 PM CDTTornado Warning Tornado observedLOT17 min
Aug 12, 8:37 AM CDTTornado WarningLOT38 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 18, 20263tornado warnings
  2. August 10, 20263tornado warnings
  3. June 11, 20262tornado warnings
  4. March 11, 20261tornado warnings
  5. August 12, 20261tornado warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

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.