Alert archive / Tornado Watches

Tornado Watches in the United States, 2011

327 tornado watches in 2011. Each alert counts once, however many counties it covered. The archive of tornado watches reaches back to 1997.

Tornado Watches by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Tornado Watches
327
Busiest month
April104 tornado watches
Busiest day
April 27, 201120 tornado watches

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.

1 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 27, 201120tornado watches
  2. May 25, 201112tornado watches
  3. February 28, 201110tornado watches
  4. April 11, 20118tornado watches
  5. April 15, 20118tornado watches
  6. April 26, 20118tornado watches
  7. April 28, 20118tornado watches
  8. May 22, 20118tornado watches
  9. April 16, 20117tornado watches
  10. November 8, 20116tornado watches
  11. April 4, 20116tornado watches
  12. June 19, 20116tornado watches
  13. June 21, 20116tornado watches
  14. September 5, 20116tornado watches
  15. November 16, 20115tornado watches

Nearby

Alerts in force nowThe tornado archiveThe radar archive20102012

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.