Alert archive / Heat Advisories / 2011
Heat Advisories in the United States, August 2011
172 heat advisories in August 2011. 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.
- Heat Advisories
- 172
- Busiest day
- August 3, 201118 heat advisories
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.
- South Carolina72
- Georgia65
- Texas65
- Kansas62
- North Carolina61
- Arkansas59
- Missouri52
- Illinois48
- Indiana47
- Kentucky46
- Louisiana43
- Ohio38
- Oklahoma38
- Mississippi35
- Iowa33
- Alabama30
- Nebraska27
- Virginia24
- Tennessee21
- Minnesota20
- Florida20
- Michigan20
- Maryland20
- West Virginia19
- Wisconsin18
- Pennsylvania18
- New York16
- New Jersey10
- Arizona9
- Connecticut8
- District of Columbia8
- South Dakota7
- North Dakota7
- Delaware6
- Massachusetts4
- New Hampshire4
- Washington3
- California3
- Oregon3
- Maine3
4 more states
Nearby
Alerts in force nowThe tornado archiveThe radar archive20102012
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.