Alert archive / Tornado Warnings

Tornado Warnings in the United States, 1991

1,303 tornado warnings in 1991. Each alert counts once, however many counties it covered. The archive of tornado warnings reaches back to 1986.

Tornado Warnings by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Tornado Warnings
1,303
Busiest month
May374 tornado warnings
Busiest day
March 27, 199155 tornado warnings

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.

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 27, 199155tornado warnings
  2. April 27, 199152tornado warnings
  3. May 16, 199143tornado warnings
  4. April 12, 199141tornado warnings
  5. April 29, 199138tornado warnings
  6. April 28, 199132tornado warnings
  7. April 26, 199131tornado warnings
  8. March 22, 199127tornado warnings
  9. June 1, 199127tornado warnings
  10. May 17, 199126tornado warnings
  11. May 30, 199126tornado warnings
  12. May 12, 199124tornado warnings
  13. May 31, 199124tornado warnings
  14. May 14, 199123tornado warnings
  15. May 29, 199123tornado warnings

Nearby

Alerts in force nowThe tornado archiveThe radar archive19901992

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.