Alert archive / Severe Thunderstorm Warnings / 2023
Severe Thunderstorm Warnings in the United States, March 2023
1,267 severe thunderstorm warnings in March 2023. Each alert counts once, however many counties it covered. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Severe Thunderstorm Warnings
- 1,267
- Busiest day
- March 31, 2023221 severe thunderstorm 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.
- Texas3,176
- Kansas1,347
- Oklahoma1,286
- Nebraska1,234
- Colorado1,187
- Georgia1,136
- Missouri1,071
- Alabama1,066
- Florida976
- Arkansas961
- Illinois934
- Mississippi930
- Kentucky788
- North Carolina762
- Tennessee733
- Louisiana728
- New Mexico645
- Virginia624
- Pennsylvania577
- South Dakota541
- Iowa540
- Indiana538
- New York523
- Wyoming499
- Ohio455
- South Carolina399
- Minnesota369
- Arizona336
- Wisconsin302
- Maryland298
- Michigan297
- West Virginia243
- Montana230
- New Jersey229
- North Dakota208
- Utah98
- Idaho94
- California91
- Massachusetts89
- Delaware80
Nearby
Alerts in force nowThe tornado archiveThe radar archive20222024
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.