SEVERE weather, rain and flooding are at the forefront of the minds of many South Africans, especially those in KwaZulu-Natal. Early last week (11-12 April 2022), the province’s coast received heavy rain, with some areas recording over 300mm in 24 hours. This is about a third of the annual rainfall in KwaZulu-Natal. The rain was caused by a strong cut-off low weather system off the east coast of southern Africa. Cut-off lows frequently occur off this coast during the autumn months. These systems can cause localised flooding as well as large wave events. The port city of Durban (in the…