Alert archive / Frost Advisories

Frost Advisories in the United States, 2021

586 frost advisories in 2021. Each alert counts once, however many counties it covered. The archive of frost advisories reaches back to 2005.

Frost Advisories by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Frost Advisories
586
Busiest month
May178 frost advisories
Busiest day
May 12, 202125 frost 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.

6 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 12, 202125frost advisories
  2. May 10, 202121frost advisories
  3. May 11, 202120frost advisories
  4. April 22, 202116frost advisories
  5. April 3, 202115frost advisories
  6. November 4, 202114frost advisories
  7. April 21, 202114frost advisories
  8. May 7, 202114frost advisories
  9. May 28, 202114frost advisories
  10. May 9, 202112frost advisories
  11. October 15, 202111frost advisories
  12. October 21, 202110frost advisories
  13. November 2, 202110frost advisories
  14. November 3, 202110frost advisories
  15. November 13, 202110frost advisories

Nearby

Alerts in force nowThe tornado archiveThe radar archive20202022

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.