A tropical wave continues to traverse the Eastern Caribbean affecting Saint Vincent and the Grenadines(SVG) in the process.
An existing layer of Saharan dust threatens to limit shower activity associated with this wave although upper level conditions remain quite favourable for enhancement. Nevertheless, models continue to suggest that the southern Grenadines may experience moderate to heavy showers accompanied by isolated thunderstorms as the axis of this wave moves west of the islands by late evening today(Friday). Pockets of instability trailing the wave may still instigate some showers across Saturday, while occasionally cloudy skies and a few scattered showers may be experienced early Sunday and Monday.
East north easterly moderate to fresh(20km/h to 40km/h) trades are anticipated within the next 6 hours before becoming east south easterly as the wave's axis passes the islands. A decrease(15km/h - 30km/h)in speed is expected on Saturday and across Sunday, with the flow becoming easterly at first then back to east south easterly until the end of the forecast period.
Moderate sea conditions, with swells peaking to 1.5m on the western coasts and 2.0m on the eastern coasts are forecast. Small craft operators and sea-bathers are advised to exercise caution especially on eastern coasts for above normal sea swells. Generally slight conditions (1.0m-1.2m) should return by Sunday evening on both the western and eastern coasts.
Saharan dust intrusion with varying concentrations will continue to affect SVG with only slight improvement to these conditions expected around late Monday.