Alert archive / Flash Flood Warnings / 2017
Flash Flood Warnings in the United States, July 2017
832 flash flood warnings in July 2017. 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
- 832
- Busiest day
- July 24, 201777 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.
- Texas394
- Arizona262
- California258
- Mississippi190
- Puerto Rico166
- Arkansas165
- Oklahoma157
- Missouri157
- Ohio130
- Pennsylvania128
- Alabama124
- Louisiana115
- Kentucky112
- New Mexico110
- Kansas104
- Illinois90
- Colorado89
- Tennessee80
- New York76
- Florida76
- Nevada72
- Indiana70
- Georgia68
- North Carolina57
- Utah55
- West Virginia52
- Virginia50
- Maryland44
- Nebraska39
- South Carolina38
- Iowa37
- Massachusetts32
- Hawaii31
- New Jersey25
- Wisconsin20
- Minnesota18
- New Hampshire18
- Maine15
- U.S. Virgin Islands14
- Connecticut13
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.