Flash flood warning: Take action! A flash flood warning is issued when a flash flood is either imminent or already occurring. In flood-prone areas, it's crucial to move immediately to higher ground. A flash flood is a sudden and violent inundation that can develop within minutes to hours, and it can even happen in areas not currently experiencing rainfall. Flood warning: Take action! A flood warning is declared when flooding is on the verge of happening or is already underway.
The sirens are a testament to the determination of a community that has experienced deadly floods in the past, warning residents of devastating floodwaters that hours earlier had killed at least 118 people in communities along the same river.