Alert archive / Areal Flood Advisories

Areal Flood Advisories in the United States, 2009

7,475 areal flood advisories in 2009. Each alert counts once, however many counties it covered. The archive of areal flood advisories reaches back to 2005.

Areal Flood Advisories by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Areal Flood Advisories
7,475
Busiest month
July1,429 areal flood advisories
Busiest day
July 31, 200994 areal flood advisories

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.

13 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 31, 200994areal flood advisories
  2. August 12, 200987areal flood advisories
  3. September 11, 200985areal flood advisories
  4. July 30, 200982areal flood advisories
  5. June 15, 200976areal flood advisories
  6. September 10, 200974areal flood advisories
  7. May 24, 200972areal flood advisories
  8. July 29, 200972areal flood advisories
  9. July 27, 200971areal flood advisories
  10. June 11, 200970areal flood advisories
  11. September 5, 200970areal flood advisories
  12. May 27, 200969areal flood advisories
  13. July 26, 200967areal flood advisories
  14. August 10, 200966areal flood advisories
  15. May 15, 200965areal flood advisories

Nearby

Alerts in force nowThe tornado archiveThe radar archive20082010

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. Warning verification from the Mesonet's Cow. Rebuilt daily.