Alert archive / Red Flag Warnings
Red Flag Warnings in the United States, 2015
776 red flag warnings in 2015. 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
- 776
- Busiest month
- April197 red flag warnings
- Busiest day
- April 1, 201520 red flag 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.
- Wyoming81
- Nebraska76
- Colorado66
- Kansas64
- California63
- Oregon58
- Washington48
- Montana47
- South Dakota46
- Minnesota44
- Texas38
- Alaska37
- Idaho36
- Alabama36
- North Dakota31
- New Mexico31
- Iowa27
- Oklahoma24
- Puerto Rico17
- Arizona15
- Missouri13
- New York12
- Maine12
- Nevada12
- Florida11
- Massachusetts10
- Wisconsin8
- New Hampshire8
- New Jersey8
- Pennsylvania7
- Illinois6
- Connecticut6
- U.S. Virgin Islands6
- Indiana5
- Vermont5
- South Carolina4
- North Carolina4
- Utah4
- Kentucky4
- Virginia3
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. Rebuilt daily.