Alert archive / Tornado Warnings / 2017
Tornado Warnings in the United States, August 2017
408 tornado warnings in August 2017. Each alert counts once, however many counties it covered. The archive of tornado warnings reaches back to 1986.
Tornado Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Tornado Warnings
- 408
- Busiest day
- August 27, 201781 tornado 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.
- Texas457
- Louisiana238
- Florida220
- Georgia211
- Mississippi169
- Alabama139
- Oklahoma135
- Missouri127
- Kansas107
- Iowa98
- Arkansas94
- North Carolina85
- Illinois83
- Tennessee81
- Indiana77
- South Carolina70
- Ohio60
- Minnesota57
- Nebraska56
- Kentucky46
- Virginia43
- South Dakota43
- Colorado41
- North Dakota38
- New Mexico38
- Pennsylvania38
- Wisconsin34
- Wyoming25
- New York23
- West Virginia22
- Maryland10
- California7
- Michigan7
- Maine5
- Oregon4
- New Hampshire4
- New Jersey4
- Washington2
- Arizona2
- Delaware2
3 more states
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.