Alert archive / Mesoscale Discussions / 2026
Mesoscale Discussions in the United States, May 2026
295 mesoscale discussions in May 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by state
Each state shaded by its count. Tap a state for its own archive.
- Mesoscale Discussions
- 295
- Busiest day
- May 17, 202621 mesoscale discussions
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.
- Texas332
- Kansas310
- Nebraska277
- Oklahoma269
- Missouri253
- Illinois225
- Iowa214
- South Dakota192
- Indiana188
- Pennsylvania171
- Minnesota162
- Arkansas160
- Ohio155
- Kentucky141
- Colorado139
- Wisconsin134
- New York133
- Mississippi129
- Virginia125
- West Virginia124
- Michigan123
- Tennessee119
- Alabama117
- Georgia113
- Maryland112
- North Dakota107
- North Carolina104
- Louisiana96
- Florida80
- South Carolina80
- New Jersey76
- Montana75
- Wyoming71
- New Mexico65
- Delaware55
- Connecticut40
- Idaho33
- Arizona33
- Vermont33
- Utah32
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.