Alert archive / Heat Advisories

Heat Advisories in the United States, 2022

1,080 heat advisories in 2022. Each alert counts once, however many counties it covered. The archive of heat advisories reaches back to 2005.

Heat Advisories by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Heat Advisories
1,080
Busiest month
July462 heat advisories
Busiest day
June 13, 202236 heat 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.

10 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 13, 202236heat advisories
  2. June 12, 202234heat advisories
  3. July 21, 202231heat advisories
  4. July 19, 202230heat advisories
  5. August 4, 202230heat advisories
  6. July 18, 202229heat advisories
  7. August 2, 202229heat advisories
  8. June 15, 202225heat advisories
  9. June 16, 202225heat advisories
  10. July 20, 202224heat advisories
  11. July 4, 202223heat advisories
  12. June 14, 202222heat advisories
  13. July 22, 202221heat advisories
  14. June 22, 202220heat advisories
  15. July 3, 202220heat advisories

Nearby

Alerts in force nowThe tornado archiveThe radar archive20212023

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.