Alert archive / Excessive Heat Warnings / 2022
Excessive Heat Warnings in the United States, September 2022
7 excessive heat warnings in September 2022. 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.
- Excessive Heat Warnings
- 7
- Busiest day
- September 23, 20222 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.
- California35
- Arkansas30
- Texas29
- Arizona22
- Oklahoma19
- Missouri15
- Mississippi10
- Indiana10
- Illinois10
- Kentucky9
- Washington8
- Louisiana8
- Oregon7
- Tennessee7
- Ohio6
- Nevada6
- Idaho5
- North Carolina5
- Alabama5
- Minnesota5
- South Dakota5
- Nebraska5
- Utah5
- Iowa4
- Kansas4
- Georgia3
- Florida3
- South Carolina3
- West Virginia3
- New Jersey2
- Delaware2
- Pennsylvania2
- Michigan2
- Virginia1
- New Mexico1
- North Dakota1
- Puerto Rico1
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.