Alert archive / River Flood Warnings / 2026
River Flood Warnings in the United States, August 2026
140 river flood warnings in August 2026. Each alert counts once, however many counties it covered. The last few weeks are still filling in as offices finish their follow-ups. The archive of river flood warnings reaches back to 2005.
River Flood Warnings by state
Each state shaded by its count. Tap a state for its own archive.
- River Flood Warnings
- 140
- Busiest day
- August 12, 202633 river 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.
- Missouri331
- Indiana265
- Illinois234
- Texas175
- Kansas172
- Wisconsin129
- Ohio128
- Mississippi107
- Michigan105
- Iowa92
- Louisiana88
- Washington52
- New York45
- Oklahoma39
- Alabama38
- Georgia37
- Minnesota21
- Florida19
- Kentucky16
- Arkansas16
- Pennsylvania12
- California11
- South Dakota11
- Tennessee9
- West Virginia8
- New Hampshire8
- Oregon7
- Rhode Island6
- Nebraska6
- North Dakota4
- Massachusetts4
- Connecticut4
- Maine4
- Vermont4
- New Jersey3
- Idaho2
- Virginia2
- North Carolina2
- South Carolina2
- New Mexico1
Nearby
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.