Following events of strong winds and persistent rain causing havoc in the Western Cape, SA science writer Leonie Joubert and Wits climatologist Professor Coleen Vogel have warned that SA cities need to prepare for the worst. They say that cities and the countryside are vulnerable to rain bombs and devastating flooding. Leonie was speaking during  journalism webinar with a special focus on El Nino and La Niña. The webinar highlighted that El Niño can result in flooding, as seen in Durban in April 2019. Sebenzile Nkambule spoke to Cape Town-based science writer, Leonie Joubert.