Alert archive / Severe Thunderstorm Watches / 2017
Severe Thunderstorm Watches in the United States, May 2017
80 severe thunderstorm watches in May 2017. 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
- 80
- Busiest day
- May 27, 201712 severe thunderstorm watches
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.
- Kansas70
- Texas67
- Oklahoma58
- Missouri57
- Nebraska41
- Arkansas40
- Indiana34
- Pennsylvania32
- Illinois32
- Iowa31
- Minnesota31
- Wisconsin30
- South Dakota26
- Ohio26
- Kentucky25
- Tennessee24
- Colorado21
- Mississippi20
- West Virginia20
- New York18
- Virginia18
- Maryland17
- Georgia17
- New Jersey16
- Michigan16
- North Carolina15
- Louisiana14
- Alabama13
- New Mexico13
- Vermont10
- Connecticut9
- District of Columbia9
- North Dakota8
- Delaware8
- Massachusetts8
- South Carolina8
- Florida6
- New Hampshire5
- Montana4
- Maine4
5 more states
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.