Alert archive / Red Flag Warnings / 2009
Red Flag Warnings in the United States, April 2009
268 red flag warnings in April 2009. 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
- 268
- Busiest day
- April 23, 200923 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.
- Florida403
- Texas273
- New Mexico126
- Georgia81
- Alabama70
- Arizona68
- California60
- Colorado58
- Oklahoma54
- Nevada40
- Alaska39
- Kansas39
- Oregon27
- Montana26
- Nebraska24
- Washington20
- Utah19
- Idaho17
- Wyoming16
- Minnesota15
- New York14
- Connecticut11
- Missouri11
- North Carolina10
- New Hampshire10
- Maine9
- Pennsylvania8
- Michigan8
- South Dakota8
- Massachusetts7
- New Jersey6
- North Dakota6
- Vermont5
- Kentucky5
- Hawaii4
- Arkansas4
- Maryland4
- Rhode Island4
- Virginia3
- Wisconsin3
Nearby
Alerts in force nowThe tornado archiveThe radar archive20082010
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.