Instability associated with two tropical waves will dominate the weather pattern across SVG over the weekend. Models suggest moderate shower activity tonight(Friday) into Saturday morning with a decrease in intensity as the day progresses. By late evening, another tropical wave would affect the islands and should result in moderate to heavy showers on Sunday. Residents and motorists in areas prone to flooding and landslides or near rivers and streams should remain alert. The Atlantic high pressure system would regain its dominance early Monday.