Alert archive / Flash Flood Warnings

Flash Flood Warnings in the United States, 2016

3,481 flash flood warnings in 2016. Each alert counts once, however many counties it covered. The archive of flash flood warnings reaches back to 1986.

Flash Flood Warnings by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Flash Flood Warnings
3,481
Busiest month
August817 flash flood warnings
Busiest day
March 10, 201673 flash flood 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.

12 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 10, 201673flash flood warnings
  2. June 2, 201665flash flood warnings
  3. March 11, 201662flash flood warnings
  4. May 27, 201662flash flood warnings
  5. March 9, 201657flash flood warnings
  6. March 31, 201654flash flood warnings
  7. August 12, 201653flash flood warnings
  8. May 26, 201650flash flood warnings
  9. August 13, 201650flash flood warnings
  10. May 29, 201648flash flood warnings
  11. August 1, 201647flash flood warnings
  12. April 18, 201644flash flood warnings
  13. August 2, 201643flash flood warnings
  14. August 3, 201641flash flood warnings
  15. August 29, 201640flash flood warnings

Nearby

Alerts in force nowThe tornado archiveThe radar archive20152017

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.