Alert archive / Red Flag Warnings / 2017
Red Flag Warnings in the United States, April 2017
89 red flag warnings in April 2017. Each alert counts once, however many counties it covered. The archive of red flag warnings reaches back to 2005.
Red Flag Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Red Flag Warnings
- 89
- Busiest day
- April 7, 201713 red flag 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.
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.