Alert archive / Flash Flood Warnings / 2010
Flash Flood Warnings in the United States, April 2010
149 flash flood warnings in April 2010. 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
- 149
- Busiest day
- April 24, 201030 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.
- Texas451
- Missouri335
- Arkansas260
- Mississippi239
- Tennessee225
- Iowa203
- Arizona174
- North Carolina173
- Kentucky157
- Kansas154
- Illinois153
- New Mexico151
- Virginia141
- Alabama133
- California126
- Puerto Rico125
- Nebraska88
- Indiana87
- West Virginia85
- Utah82
- Colorado81
- Oklahoma80
- South Dakota75
- Minnesota68
- Pennsylvania65
- Ohio62
- Wisconsin57
- New York54
- Louisiana51
- North Dakota46
- South Carolina39
- Nevada38
- Maryland34
- Georgia33
- U.S. Virgin Islands25
- Montana24
- Michigan23
- Hawaii22
- Florida19
- Idaho16
Nearby
Alerts in force nowThe tornado archiveThe radar archive20092011
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.