Alert archive / Flash Flood Watches / 2019
Flash Flood Watches in the United States, August 2019
77 flash flood watches in August 2019. Each alert counts once, however many counties it covered. The archive of flash flood watches reaches back to 2005.
Flash Flood Watches by state
Each state shaded by its count. Tap a state for its own archive.
- Flash Flood Watches
- 77
- Busiest day
- August 9, 20198 flash flood watches
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.
- Kansas96
- Missouri87
- Illinois69
- California61
- Iowa59
- Arkansas53
- Pennsylvania50
- Texas50
- Nebraska43
- Louisiana38
- Arizona32
- Mississippi31
- Oklahoma31
- Virginia31
- Kentucky30
- West Virginia30
- Indiana28
- Maryland27
- New York26
- Wisconsin23
- North Carolina21
- New Jersey21
- Minnesota20
- Colorado17
- Ohio16
- New Mexico16
- Tennessee15
- Hawaii13
- South Dakota13
- Montana12
- Wyoming12
- Georgia12
- Delaware11
- South Carolina10
- Connecticut10
- Alabama9
- District of Columbia9
- Massachusetts7
- Idaho7
- Nevada7
Nearby
Alerts in force nowThe tornado archiveThe radar archive20182020
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.