Alert archive / Illinois / Cass County / Mesoscale Discussions

Mesoscale Discussions in Cass County, Illinois, 2025

20 mesoscale discussions in 2025. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.

Cass County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Mesoscale Discussions
20
Busiest month
April6 mesoscale discussions
Busiest day
April 20, 20252 mesoscale discussions

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 14, 7:45 PM CDTMesoscale DiscussionSPC2 hr
Mar 19, 11:21 AM CDTMesoscale DiscussionSPC2 hr
Apr 2, 9:48 AM CDTMesoscale DiscussionSPC117 min
Apr 18, 2:53 PM CDTMesoscale DiscussionSPC3 hr
Apr 20, 2:20 PM CDTMesoscale DiscussionSPC115 min
Apr 20, 5:40 PM CDTMesoscale DiscussionSPC95 min
Apr 20, 7:46 PM CDTMesoscale DiscussionSPC89 min
Apr 22, 4:54 PM CDTMesoscale DiscussionSPC96 min
Jun 3, 6:14 PM CDTMesoscale DiscussionSPC91 min
Jun 30, 2:06 PM CDTMesoscale DiscussionSPC114 min
Jul 11, 2:01 PM CDTMesoscale DiscussionSPC89 min
Jul 11, 10:59 PM CDTMesoscale DiscussionSPC2 hr
Jul 16, 2:08 PM CDTMesoscale DiscussionSPC2 hr
Jul 19, 7:13 AM CDTMesoscale DiscussionSPC92 min
Jul 25, 10:06 PM CDTMesoscale DiscussionSPC84 min
Jul 26, 1:21 PM CDTMesoscale DiscussionSPC114 min
Sep 21, 4:43 PM CDTMesoscale DiscussionSPC92 min
Nov 29, 3:18 AM CSTMesoscale DiscussionSPC4 hr
Nov 29, 10:42 AM CSTMesoscale DiscussionSPC5 hr
Dec 28, 7:16 AM CSTMesoscale DiscussionSPC119 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 20, 20252mesoscale discussions
  2. July 26, 20252mesoscale discussions
  3. November 29, 20252mesoscale discussions
  4. March 15, 20251mesoscale discussions
  5. March 19, 20251mesoscale discussions
  6. April 2, 20251mesoscale discussions
  7. April 18, 20251mesoscale discussions
  8. April 21, 20251mesoscale discussions
  9. April 22, 20251mesoscale discussions
  10. June 3, 20251mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20242026

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.