Storms & floods
During storms and floods, start with the right sources
Warnings, reporting and personal interpretations are different things.

Build a source list for a region you follow: weather agencies, emergency authorities and transport services. Record coverage and update times so information can be checked, rather than keeping an unattributed screenshot.
This is a research prompt, not a current flood report or evacuation route. Follow applicable local instructions. The NWS site is one entry point for flood information.