What is a slow onset flood?

A slow onset flood is a type of flooding that develops gradually over an extended period, often as a result of prolonged rainfall, melting snow, or rising water levels in rivers or lakes. Unlike flash floods, which occur suddenly and with little warning, slow onset floods can last for days or even weeks, allowing for more time to prepare and respond. These floods can lead to significant agricultural damage, displacement of communities, and long-term economic impacts. They are often associated with climate change and changing weather patterns, making them increasingly common in certain regions.