Alert archive / Tornado Warnings / 2009
Tornado Warnings in the United States, July 2009
272 tornado warnings in July 2009. 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
- 272
- Busiest day
- July 30, 200924 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.
- Texas349
- Alabama296
- Georgia236
- Missouri201
- Louisiana183
- Tennessee182
- Mississippi173
- Kansas172
- Florida146
- Nebraska128
- Kentucky126
- Arkansas123
- Colorado113
- Illinois108
- South Dakota91
- North Carolina86
- Oklahoma78
- North Dakota70
- Ohio59
- Indiana58
- Minnesota58
- Virginia57
- Iowa52
- South Carolina49
- Wisconsin41
- Pennsylvania32
- New York24
- Wyoming24
- New Mexico24
- Montana21
- Maryland16
- Michigan11
- West Virginia11
- Connecticut9
- Maine7
- New Jersey5
- Idaho5
- New Hampshire2
- Vermont2
- Delaware2
4 more states
Nearby
Alerts in force nowThe tornado archiveThe radar archive20082010
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.