What Is Flash Flood Warning?
An NWS alert meaning flash flooding is happening or about to happen in your area. Move to higher ground immediately. In technical terms: A short-fuse NWS warning product, issued as storm-based polygons, for flash flooding that is imminent or occurring; includes impact-based tags (Considerable, Catastrophic) and source and rainfall-rate details.
Also called: FFW
Flash Flood Warning In Plain English
An NWS alert meaning flash flooding is happening or about to happen in your area. Move to higher ground immediately.
The Technical Definition
A short-fuse NWS warning product, issued as storm-based polygons, for flash flooding that is imminent or occurring; includes impact-based tags (Considerable, Catastrophic) and source and rainfall-rate details.