INTERACTIVE: Hotter cities, stronger storms
By SHYAFIQ DZULKIFLI PETALING JAYA: Rising urban temperatures in the Klang Valley are contributing to heavier downpours and flash floods, with experts pointing to the Urban Heat Island (UHI) effect as one of the factors intensifying storms. Experts say the interaction between urban heat, rapid development and climate change is intensifying thunderstorms over densely built-up areas, including the Klang Valley. Climatologist Professor Emeritus Fredolin Tangang from Universiti Kebangsaan Malaysia said the UHI effect plays a contributing role but is not the sole factor behind the increasing frequency of heavy downpours in urban areas. “The answer is yes, but UHI is not the only factor,” he said, explaining that thunderstorms are more common during inter-monsoon periods in April to May and September to October, when weaker winds create favourable conditions for thunderstorms to develop. He said heat and moisture are key ingredients for thunderstorm formation and...