2 ½ inches of rainfall is possible during a 48 hours period, beginning from today (Friday) across SVG as a trough system moves across the islands. Model guidance is indicating an east south easterly pull behind of the trough, resulting in an influx of equatorial moisture across the islands around Saturday. Scattered showers will last into Sunday, but by then most of the unstable conditions should be to the west of the island chain. In addition, there is a low to moderate chance of thunderstorm activity, and gusty winds are expected near showers.