Alert archive / Severe Thunderstorm Warnings / 1991
Severe Thunderstorm Warnings in the United States, May 1991
2,003 severe thunderstorm warnings in May 1991. 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
- 2,003
- Busiest day
- May 5, 1991178 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.
- Texas1,315
- Oklahoma894
- Kansas575
- Mississippi433
- Louisiana401
- Nebraska394
- Georgia309
- South Dakota295
- Arkansas282
- Florida276
- Ohio268
- Missouri263
- Illinois254
- Iowa246
- Colorado222
- Alabama213
- New York210
- Indiana208
- Pennsylvania206
- Minnesota202
- Michigan195
- Wisconsin166
- North Dakota149
- Kentucky137
- North Carolina118
- South Carolina109
- Wyoming109
- Montana109
- West Virginia97
- Tennessee95
- Virginia77
- New Jersey69
- Maryland63
- New Mexico51
- Massachusetts34
- Connecticut25
- Utah24
- New Hampshire24
- Arizona23
- Delaware19
Nearby
Alerts in force nowThe tornado archiveThe radar archive19901992
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.