Strong winds and heavy rain lashed Singapore on the evening of Sept 17, toppling trees and snarling traffic. As Sumatra squalls are set to bring widespread thundery showers and gusty winds for a few days, Andrea Heng and Hairianto Diman speak to Dr Dhrubajyoti Samanta, Senior Research Fellow, Earth Observatory of Singapore, NTU, to find out if this weather phenomenon will be a common occurrence and if the typhoons around the region have an influence.

See omnystudio.com/listener for privacy information.