Alert archive / Severe Thunderstorm Watches
Severe Thunderstorm Watches in the United States, 2025
449 severe thunderstorm watches in 2025. Each alert counts once, however many counties it covered. The archive of severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by state
Each state shaded by its count. Tap a state for its own archive.
- Severe Thunderstorm Watches
- 449
- Busiest month
- June108 severe thunderstorm watches
- Busiest day
- March 31, 202510 severe thunderstorm 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.
- Texas114
- Oklahoma71
- Nebraska67
- Kansas64
- South Dakota48
- Arkansas42
- Colorado40
- Iowa40
- Pennsylvania34
- Minnesota33
- Wyoming31
- Missouri30
- Virginia29
- Mississippi25
- West Virginia25
- North Dakota25
- Ohio24
- Kentucky24
- North Carolina23
- New Mexico23
- Georgia22
- Tennessee22
- Louisiana22
- Illinois21
- Alabama21
- Wisconsin19
- Maryland18
- Indiana18
- Montana18
- New York16
- New Jersey15
- South Carolina15
- Delaware12
- Michigan12
- District of Columbia10
- Connecticut7
- Florida7
- New Hampshire7
- Vermont6
- Massachusetts6
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowThe tornado archiveThe radar archive20242026
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.