The interaction of a tropical wave, a broad area of low pressure and an upper level low pressure area produced periods of showers and thunderstorm activity over the southeastern Caribbean Sea, Trinidad and Tobago and the surrounding areas between August 30 and 31, 2020. Tobago was affected by persistent and intense rainfall between 0800UTC and 1700UTC on 31 August.

The Government of Trinidad and Tobago has two separate Excess Rainfall policies – one for Trinidad and one for Tobago.