Alert archive / Illinois / Saint Clair County / Mesoscale Discussions

Mesoscale Discussions in Saint Clair County, Illinois, 2020

20 mesoscale discussions in 2020. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.

Saint Clair County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Mesoscale Discussions
20
Busiest month
March5 mesoscale discussions
Busiest day
March 27, 20203 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
Jan 17, 9:45 AM CSTMesoscale DiscussionSPC6 hr
Mar 12, 9:21 AM CDTMesoscale DiscussionSPC114 min
Mar 26, 9:51 PM CDTMesoscale DiscussionSPC84 min
Mar 27, 1:20 AM CDTMesoscale DiscussionSPC85 min
Mar 27, 3:43 AM CDTMesoscale DiscussionSPC92 min
Mar 28, 1:17 PM CDTMesoscale DiscussionSPC88 min
Apr 8, 1:46 PM CDTMesoscale DiscussionSPC119 min
Apr 28, 3:33 PM CDTMesoscale DiscussionSPC87 min
Apr 28, 6:32 PM CDTMesoscale DiscussionSPC118 min
Apr 28, 9:06 PM CDTMesoscale DiscussionSPC84 min
May 16, 3:38 PM CDTMesoscale DiscussionSPC3 hr
May 17, 1:44 PM CDTMesoscale DiscussionSPC2 hr
Jun 3, 1:45 PM CDTMesoscale DiscussionSPC2 hr
Jul 15, 1:10 PM CDTMesoscale DiscussionSPC2 hr
Jul 15, 5:35 PM CDTMesoscale DiscussionSPC85 min
Jul 21, 1:43 PM CDTMesoscale DiscussionSPC92 min
Jul 27, 12:14 PM CDTMesoscale DiscussionSPC91 min
Aug 10, 2:38 PM CDTMesoscale DiscussionSPC2 hr
Aug 10, 5:17 PM CDTMesoscale DiscussionSPC118 min
Nov 10, 5:01 PM CSTMesoscale DiscussionSPC119 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 27, 20203mesoscale discussions
  2. April 28, 20202mesoscale discussions
  3. July 15, 20202mesoscale discussions
  4. August 10, 20202mesoscale discussions
  5. January 17, 20201mesoscale discussions
  6. March 12, 20201mesoscale discussions
  7. March 28, 20201mesoscale discussions
  8. April 8, 20201mesoscale discussions
  9. April 29, 20201mesoscale discussions
  10. May 16, 20201mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20192021

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.