NBC SVG A weather advisory is in effect for St. Vincent & the Grenadines, and residents and motorists in areas prone to flooding and landslides or near rivers and streams should continue to exercise caution The St. Vincent and the Grenadines Meteorological Service says a Tropical Wave will continue to affect the country for the remainder of today, generating cloudy to overcast skies, triggering moderate to heavy showers and isolated thunderstorms, accompanied by gusty winds The Met Office says, as this wave progresses westward away from the islands, lingering instability could allow for additional showers and thunderstorm activity into tomorrow. Meanwhile, a strong tropical wave is currently located along