Alert archive / Illinois / McHenry County / Mesoscale Discussions

Mesoscale Discussions in McHenry County, Illinois, 2023

23 mesoscale discussions in 2023. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.

McHenry County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Mesoscale Discussions
23
Busiest month
July8 mesoscale discussions
Busiest day
April 20, 20233 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
Feb 16, 8:02 AM CSTMesoscale DiscussionSPC6 hr
Feb 22, 8:46 AM CSTMesoscale DiscussionSPC5 hr
Feb 22, 3:27 PM CSTMesoscale DiscussionSPC4 hr
Mar 25, 3:47 AM CDTMesoscale DiscussionSPC4 hr
Mar 31, 2:07 PM CDTMesoscale DiscussionSPC83 min
Mar 31, 3:50 PM CDTMesoscale DiscussionSPC55 min
Mar 31, 7:54 PM CDTMesoscale DiscussionSPC2 hr
Apr 4, 8:00 AM CDTMesoscale DiscussionSPC3 hr
Apr 4, 12:53 PM CDTMesoscale DiscussionSPC67 min
Apr 19, 2:42 PM CDTMesoscale DiscussionSPC2 hr
Apr 20, 1:50 PM CDTMesoscale DiscussionSPC85 min
Apr 20, 3:41 PM CDTMesoscale DiscussionSPC94 min
Apr 20, 5:23 PM CDTMesoscale DiscussionSPC97 min
Jul 5, 12:49 PM CDTMesoscale DiscussionSPC116 min
Jul 12, 3:05 PM CDTMesoscale DiscussionSPC85 min
Jul 13, 7:04 PM CDTMesoscale DiscussionSPC56 min
Jul 14, 2:38 PM CDTMesoscale DiscussionSPC2 hr
Jul 14, 8:23 PM CDTMesoscale DiscussionSPC97 min
Jul 26, 7:30 AM CDTMesoscale DiscussionSPC90 min
Jul 28, 2:52 AM CDTMesoscale DiscussionSPC113 min
Jul 28, 7:21 PM CDTMesoscale DiscussionSPC2 hr
Aug 17, 4:41 AM CDTMesoscale DiscussionSPC3 hr
Aug 24, 2:46 PM CDTMesoscale DiscussionSPC119 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 20, 20233mesoscale discussions
  2. February 22, 20232mesoscale discussions
  3. March 31, 20232mesoscale discussions
  4. April 4, 20232mesoscale discussions
  5. July 14, 20232mesoscale discussions
  6. February 16, 20231mesoscale discussions
  7. March 25, 20231mesoscale discussions
  8. April 1, 20231mesoscale discussions
  9. April 19, 20231mesoscale discussions
  10. July 5, 20231mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20222024

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.