Alert archive / Severe Thunderstorm Warnings / 2017
Severe Thunderstorm Warnings in the United States, June 2017
3,121 severe thunderstorm warnings in June 2017. 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
- 3,121
- Busiest day
- June 13, 2017262 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.
- Texas2,219
- Oklahoma1,328
- Kansas1,292
- Nebraska845
- Missouri794
- Georgia773
- New Mexico668
- Arkansas629
- Iowa622
- Illinois593
- North Carolina561
- Pennsylvania551
- Mississippi549
- South Dakota544
- Alabama532
- Minnesota528
- Kentucky523
- Florida518
- Ohio501
- Wisconsin494
- Colorado492
- New York484
- Tennessee480
- Indiana465
- Virginia451
- South Carolina448
- Louisiana410
- Maryland261
- North Dakota236
- Arizona232
- Michigan216
- West Virginia190
- California160
- Wyoming151
- Montana132
- New Jersey107
- Nevada90
- Maine82
- Massachusetts80
- Vermont75
Nearby
Alerts in force nowThe tornado archiveThe radar archive20162018
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.