Jersey Flood: Causes, Impact, and Response Flooding in Jersey (the largest of the Channel Islands) can result from heavy rainfall, high tides, storm surges, and coastal erosion . Given its location in the English Channel , Jersey is vulnerable to extreme weather events, including severe storms that can lead to flash floods and coastal flooding. 1. Causes of Flooding in Jersey A. Heavy Rainfall & Flash Floods Jersey experiences intense rainfall , especially during autumn and winter. Drainage systems can become overwhelmed, leading to urban flooding. Steep valleys (e.g., St. Peter’s Valley) can worsen runoff, causing rivers to burst their banks. B. High Tides & Storm Surges Jersey’s tidal range is one of the largest in the world (up to 12 meters). Storm surges (e.g., from Atlantic depressions) can push seawater inland. Low-lying coastal areas (e.g., St. Aubin’s Bay, Havre des Pas) are at risk. C. Climate Change Eff...