Alert archive / Flash Flood Warnings / 1990
Flash Flood Warnings in the United States, May 1990
403 flash flood warnings in May 1990. Each alert counts once, however many counties it covered. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- Flash Flood Warnings
- 403
- Busiest day
- May 3, 199088 flash flood 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.
- Texas417
- Ohio284
- Pennsylvania179
- West Virginia148
- Alabama132
- Arkansas103
- Arizona97
- Indiana85
- Oklahoma82
- Kentucky79
- Illinois78
- Missouri77
- New York73
- Louisiana68
- Georgia66
- North Carolina65
- Mississippi52
- Kansas51
- Iowa51
- Virginia42
- California39
- Tennessee36
- Nebraska32
- New Mexico32
- Minnesota32
- South Carolina31
- Vermont29
- Wisconsin27
- Maryland21
- Nevada16
- New Jersey13
- Montana12
- New Hampshire11
- Utah9
- Massachusetts9
- Florida7
- Connecticut7
- Washington5
- South Dakota4
- Idaho4
Nearby
Alerts in force nowThe tornado archiveThe radar archive19891991
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.