Alert archive / Tornado Warnings / 2018
Tornado Warnings in the United States, December 2018
137 tornado warnings in December 2018. Each alert counts once, however many counties it covered. The archive of tornado warnings reaches back to 1986.
Tornado Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Tornado Warnings
- 137
- Busiest day
- December 1, 201849 tornado 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.
- Texas180
- Louisiana178
- Iowa124
- Mississippi112
- Florida111
- Arkansas106
- North Carolina104
- Kansas96
- Missouri93
- Alabama85
- Nebraska75
- Illinois68
- Colorado68
- Virginia67
- Kentucky66
- Pennsylvania61
- Oklahoma60
- Georgia58
- Tennessee58
- Wyoming54
- North Dakota40
- Indiana35
- South Carolina34
- Wisconsin33
- Minnesota31
- South Dakota30
- Ohio23
- New York17
- Michigan14
- Massachusetts13
- Connecticut10
- Idaho10
- Maryland9
- New Mexico9
- West Virginia8
- New Hampshire8
- Montana5
- Maine4
- New Jersey3
- California3
4 more states
Nearby
Alerts in force nowThe tornado archiveThe radar archive20172019
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.