A tropical wave has been analyzed near 33W from about 02N to 11N. At present, no significant deep convection is associated with the wave. Meanwhile, across the Eastern Caribbean, the combination of the Atlantic high pressure system and weak surface to low level shearlines/ troughs will continue to influence the weather pattern.
Satellite imagery depicts a mix of high level clouds and a few low level cloud patches approaching Saint Vincent and the Grenadines. A few showers are anticipated as the night progresses from a weak shearline. Instability will linger into tomorrow, and there is a low chance for support by an upper level low across the far Eastern Atlantic which can lead to occasional showers, but more so over the Northern Windwards.
The Atlantic high pressure system will briefly dominate around Thursday, and by Friday, model guidance is indicating instability from a trough to the east of the island chain. Some showers are likely first over Barbados, and then extending to Saint Vincent and the Grenadines by Saturday morning.
East North –East to East trades at 20km/h – 35km/h increasing in speed by Wednesday night are forecast. Seas are to remain slight to moderate in open waters with swells peaking to 1.8m gradually increasing around Saturday. No significant haze intrusion over the next few days.