The SVG Meteorological Services said a thick plume of Saharan dust is affecting the island chain, and could significantly reduce visibility and air quality into the weekend.

Small Craft operators and persons with respiratory concerns should be aware of these conditions

Met officials said improved visibility should return by tomorrow afternoon.

And, according to the Met Office, a lower level trough associated with activity from the Inter Tropical Convergence Zone is being monitored just south-east of the island chain.

This could degenerate into open wave, resulting in shearlines reaching the island chain with scattered showers tomorrow Saturday into Sunday.