Alert archive / Flash Flood Watches / 2025

Flash Flood Watches in the United States, September 2025

4 flash flood watches in September 2025. 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: 4
Busiest day: September 11, 20252 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.

Nearby

Alerts in force now The tornado archive The radar archive 2024 2026

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.