Alert archive / Tornado Watches / 2010
Tornado Watches in the United States, May 2010
46 tornado watches in May 2010. Each alert counts once, however many counties it covered. The archive of tornado watches reaches back to 1997.
Tornado Watches by state
Each state shaded by its count. Tap a state for its own archive.
- Tornado Watches
- 46
- Busiest day
- May 1, 20109 tornado watches
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.
- Texas44
- Missouri41
- Arkansas41
- Nebraska39
- South Dakota36
- Mississippi36
- Illinois34
- Iowa32
- Minnesota31
- Oklahoma31
- Georgia29
- Alabama28
- Kansas28
- Tennessee27
- Louisiana25
- North Carolina24
- Indiana23
- Florida20
- Wisconsin20
- Kentucky20
- South Carolina19
- Virginia18
- Colorado18
- North Dakota16
- Michigan14
- Ohio14
- Wyoming13
- Pennsylvania10
- Maryland10
- Montana8
- West Virginia8
- New York7
- New Jersey6
- Connecticut5
- District of Columbia5
- Massachusetts4
- Delaware4
- Arizona3
- Maine2
- New Hampshire2
5 more states
Nearby
Alerts in force nowThe tornado archiveThe radar archive20092011
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.