Alert archive / Red Flag Warnings

Red Flag Warnings in the United States, 2018

1,028 red flag warnings in 2018. Each alert counts once, however many counties it covered. The archive of red flag warnings reaches back to 2005.

Red Flag Warnings by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Red Flag Warnings
1,028
Busiest month
April216 red flag warnings
Busiest day
April 12, 201824 red flag 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.

4 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 12, 201824red flag warnings
  2. April 15, 201823red flag warnings
  3. April 10, 201822red flag warnings
  4. March 15, 201820red flag warnings
  5. March 14, 201819red flag warnings
  6. March 3, 201817red flag warnings
  7. April 30, 201817red flag warnings
  8. April 29, 201816red flag warnings
  9. March 22, 201813red flag warnings
  10. May 10, 201812red flag warnings
  11. May 11, 201812red flag warnings
  12. September 10, 201812red flag warnings
  13. March 5, 201811red flag warnings
  14. March 16, 201811red flag warnings
  15. April 18, 201811red flag warnings

Nearby

Alerts in force nowThe tornado archiveThe radar archive20172019

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.