Alert archive / Heat Advisories

Heat Advisories in the United States, 2015

433 heat advisories in 2015. 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
433
Busiest month
July244 heat advisories
Busiest day
July 17, 201526 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.

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 17, 201526heat advisories
  2. July 11, 201520heat advisories
  3. July 23, 201520heat advisories
  4. August 7, 201518heat advisories
  5. July 25, 201517heat advisories
  6. July 28, 201515heat advisories
  7. July 18, 201514heat advisories
  8. July 19, 201514heat advisories
  9. July 27, 201514heat advisories
  10. June 24, 201513heat advisories
  11. July 16, 201512heat advisories
  12. July 12, 201511heat advisories
  13. July 20, 201511heat advisories
  14. June 21, 201510heat advisories
  15. June 22, 201510heat advisories

Nearby

Alerts in force nowThe tornado archiveThe radar archive20142016

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.