Alert archive / Flash Flood Watches

Flash Flood Watches in the United States, 2011

498 flash flood watches in 2011. Each alert counts once, however many counties it covered. The archive of flash flood watches reaches back to 2005.

Flash Flood Watches by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Flash Flood Watches
498
Busiest month
July105 flash flood watches
Busiest day
June 19, 201114 flash flood 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.

10 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 19, 201114flash flood watches
  2. September 5, 201111flash flood watches
  3. April 27, 201110flash flood watches
  4. May 24, 201110flash flood watches
  5. April 26, 20119flash flood watches
  6. June 20, 20119flash flood watches
  7. September 4, 20119flash flood watches
  8. April 21, 20118flash flood watches
  9. July 4, 20118flash flood watches
  10. May 20, 20117flash flood watches
  11. May 25, 20117flash flood watches
  12. June 26, 20117flash flood watches
  13. July 8, 20117flash flood watches
  14. July 12, 20117flash flood watches
  15. July 26, 20117flash flood 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.