Flood alert
Flood alerts are issued by weather agencies to alert residents that flood conditions are a possibility.In the United States, a flash flood watch is issued by the National Weather Service (NWS) when weather conditions are favorable for very heavy rain that could cause flooding or flash flooding.In Canada, a heavy rainfall warning, which indicates rainfall amounts that could produce flooding are expected, has basically the same meaning as a flood watch.In Australia, the Bureau of Meteorology issues a flood watch that covers similar conditions to flood watches in the United States.In Europe, there is the European Flood Awareness System and the commercial product including app and data services FloodAlert.