Alert archive / Winter Storm Warnings
Winter Storm Warnings in the United States, 2015
629 winter storm warnings in 2015. Each alert counts once, however many counties it covered. The archive of winter storm warnings reaches back to 2005.
Winter Storm Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Winter Storm Warnings
- 629
- Busiest month
- February167 winter storm warnings
- Busiest day
- January 31, 201525 winter storm warnings
Over time
By month
By state
Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.
- Colorado58
- Alaska53
- California39
- Wyoming34
- Texas29
- Indiana29
- Iowa29
- Montana28
- Maine26
- Washington26
- Nebraska26
- Michigan23
- Illinois23
- New Mexico23
- Idaho23
- Virginia22
- Oregon22
- West Virginia22
- New York21
- Minnesota21
- Missouri20
- Maryland20
- Pennsylvania20
- Kansas18
- Ohio18
- Wisconsin17
- Arkansas17
- North Carolina17
- Tennessee17
- South Dakota17
- Utah16
- Kentucky16
- Oklahoma15
- Connecticut15
- Massachusetts13
- Nevada12
- New Hampshire10
- Vermont10
- New Jersey10
- North Dakota7
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowThe tornado archiveThe radar archive20142016
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. Warning verification from the Mesonet's Cow. Rebuilt daily.