Alert archive / Flash Flood Warnings

Flash Flood Warnings in the United States, 1986

767 flash flood warnings in 1986. 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
767
Busiest month
June178 flash flood warnings
Busiest day
October 3, 198648 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.

The busiest days

Days with the most alerts issued, by UTC date.

  1. October 3, 198648flash flood warnings
  2. February 18, 198626flash flood warnings
  3. June 27, 198626flash flood warnings
  4. October 4, 198623flash flood warnings
  5. September 11, 198622flash flood warnings
  6. February 17, 198621flash flood warnings
  7. February 19, 198620flash flood warnings
  8. June 5, 198618flash flood warnings
  9. October 2, 198617flash flood warnings
  10. October 1, 198615flash flood warnings
  11. June 4, 198615flash flood warnings
  12. November 9, 198614flash flood warnings
  13. February 3, 198614flash flood warnings
  14. September 18, 198614flash flood warnings
  15. May 17, 198613flash flood warnings

Nearby

Alerts in force nowThe tornado archiveThe radar archive1987

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.