Alert archive / Mesoscale Discussions

Mesoscale Discussions in the United States, 2022

2,079 mesoscale discussions in 2022. Each alert counts once, however many counties it covered. The archive of mesoscale discussions reaches back to 2003.

Mesoscale Discussions by state

Each state shaded by its count. Tap a state for its own archive.

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Mesoscale Discussions
2,079
Busiest month
May392 mesoscale discussions
Busiest day
April 13, 202225 mesoscale discussions

Over time

By month

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

8 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 13, 202225mesoscale discussions
  2. July 5, 202225mesoscale discussions
  3. March 30, 202221mesoscale discussions
  4. April 5, 202221mesoscale discussions
  5. March 22, 202220mesoscale discussions
  6. May 5, 202220mesoscale discussions
  7. March 31, 202219mesoscale discussions
  8. May 12, 202219mesoscale discussions
  9. June 14, 202219mesoscale discussions
  10. July 23, 202219mesoscale discussions
  11. December 13, 202218mesoscale discussions
  12. May 16, 202218mesoscale discussions
  13. May 21, 202218mesoscale discussions
  14. June 6, 202218mesoscale discussions
  15. June 8, 202218mesoscale discussions

Nearby

Alerts in force nowThe tornado archiveThe radar archive20212023

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.