Alert archive / Winter Storm Watches / 2017
Winter Storm Watches in the United States, April 2017
47 winter storm watches in April 2017. Each alert counts once, however many counties it covered. The archive of winter storm watches reaches back to 2005.
Winter Storm Watches by state
Each state shaded by its count. Tap a state for its own archive.
- Winter Storm Watches
- 47
- Busiest day
- April 28, 20177 winter storm 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.
- Wyoming66
- Colorado58
- California54
- Montana47
- Alaska36
- New York30
- Washington29
- Minnesota29
- Oregon28
- Idaho26
- Maine23
- Nebraska17
- Pennsylvania17
- New Mexico16
- Michigan16
- South Dakota15
- Iowa14
- Wisconsin14
- Massachusetts14
- Nevada13
- New Hampshire13
- Utah12
- Kansas11
- Vermont11
- Connecticut10
- North Carolina9
- Maryland9
- Virginia6
- Arizona6
- New Jersey6
- West Virginia6
- Hawaii5
- Texas5
- North Dakota5
- Oklahoma5
- Rhode Island5
- Missouri4
- Illinois4
- South Carolina4
- Ohio3
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.