A surface to mid-level trough will continue to affect Saint Vincent and the Grenadines during the next 72 hours. Some scattered showers are forecast for tonight over the mainland. However, as time passes, a favourable upper level is likely to enhance shower activity and increase the chance of a few isolated thunderstorms. Therefore, from tomorrow afternoon into the weekend, occasional light rain, and some showers with a moderate (50%) chance of isolated thunderstorms are possible across Saint Vincent and the Grenadines.