Update: Savannah under a flood warning until Wednesday morning

Your guide to weather alerts: advisories, watches, and warnings 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. A flood warning is issued when flooding is imminent or occurring. A flood advisory is released when flooding is not expected to reach a severity level necessitating...