Alert archive

Flood Watches in the United States

8,114 flood watches since 1986. Each alert counts once, however many counties it covered. The archive of flood watches reaches back to 2005.

Flood Watches by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Flood Watches
8,114
Busiest year
2025843 flood watches
Average year
386over 21 years on file
Busiest day
February 21, 202219 flood watches

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

15 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. February 21, 202219flood watches
  2. February 27, 201118flood watches
  3. July 21, 202618flood watches
  4. July 30, 202517flood watches
  5. August 29, 202316flood watches
  6. January 23, 202416flood watches
  7. March 14, 202516flood watches
  8. May 5, 202516flood watches
  9. March 8, 201115flood watches
  10. February 28, 200714flood watches
  11. August 15, 202214flood watches
  12. January 8, 202414flood watches
  13. July 17, 202514flood watches
  14. December 10, 200813flood watches
  15. March 3, 200813flood watches

Nearby

Alerts in force nowThe tornado archiveThe radar archive

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.