Alert archive / Tornado Watches
Tornado Watches in the United States, 2021
177 tornado watches in 2021. 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
- 177
- Busiest month
- March36 tornado watches
- Busiest day
- March 17, 202111 tornado watches
Over time
By month
By state
Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.
- Texas36
- Alabama33
- Mississippi30
- Florida30
- Georgia29
- Arkansas24
- Louisiana21
- Oklahoma20
- Tennessee20
- Missouri18
- Illinois15
- Kansas14
- North Carolina14
- Indiana11
- South Carolina10
- Iowa10
- Kentucky10
- Nebraska9
- Virginia8
- Minnesota8
- Colorado8
- Wisconsin7
- Maryland6
- Pennsylvania4
- South Dakota4
- New Mexico4
- Ohio3
- Michigan3
- New Jersey3
- District of Columbia3
- Wyoming2
- West Virginia2
- North Dakota2
- Delaware2
- Montana1
- Massachusetts1
- New York1
- Connecticut1
- Rhode Island1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowThe tornado archiveThe radar archive20202022
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.