Alert archive / Severe Thunderstorm Watches
Severe Thunderstorm Watches in the United States, 2026
514 severe thunderstorm watches in 2026. Each alert counts once, however many counties it covered. The last few weeks are still filling in as offices finish their follow-ups. 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
- 514
- Busiest month
- June131 severe thunderstorm watches
- Busiest day
- August 10, 202613 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.
- Nebraska83
- Kansas81
- Texas63
- Indiana60
- Iowa59
- Ohio58
- Oklahoma58
- Illinois57
- Missouri56
- Pennsylvania54
- South Dakota50
- West Virginia49
- Minnesota49
- Virginia41
- Kentucky41
- Colorado38
- Wisconsin37
- Maryland36
- Arkansas36
- New York31
- Michigan28
- Wyoming26
- Tennessee24
- North Dakota23
- New Jersey23
- North Carolina23
- Delaware22
- Montana21
- District of Columbia20
- Georgia15
- Louisiana14
- Mississippi14
- Alabama13
- South Carolina12
- Connecticut11
- Massachusetts7
- New Mexico7
- Vermont7
- Florida5
- Arizona5
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
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.