Alert archive / Excessive Heat Warnings / 2017

Excessive Heat Warnings in the United States, June 2017

25 excessive heat warnings in June 2017. Each alert counts once, however many counties it covered. The archive of excessive heat warnings reaches back to 2005.

Excessive Heat Warnings by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Excessive Heat Warnings
25
Busiest day
June 17, 201710 excessive heat warnings

Over time

By day

Days in UTC, the clock the archive keeps.

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

Nearby

Alerts in force nowThe tornado archiveThe radar archive20162018

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.