Weather: Tropical Wave to bring showers across Barbados and Windwards 

An active topical wave is to the east of the Lesser Antilles. Rainbands ahead of it are expected to start bringing showers to Barbados

Weather: Tropical Wave to bring showers across Barbados and Windwards 
Weather: Tropical Wave to bring showers across Barbados and Windwards 

WEATHER: An active topical wave is to the east of the Lesser Antilles. Rainbands ahead of it are expected to start bringing showers to Barbados and parts of the Windwards tonight to morning to Trinidad and rest of Lesser Antilles by Monday afternoon. 

An upper trough over the East Caribbean Sea will create more instability and upper level divergence which supports widespread cloudy to overcast skies, rain periods, pockets of heavy showers and isolated thunderstorms. There is enough dry air pockets too so will also have some breaks.

A trade wind surge accompanies this system so some stong gusty winds expected and locally rough seas 7-10ft. Potential for localized flood events given recent rainfall in areas that see heavy showers.

Less rainfall from early Tuesday in Leewards then north Windwards late Tuesday. But ITCZ with SE moist flow will keep showers and chance of thunderstorms in south Windwards and Trinidad till later Tuesday. There, supportive upper level divergence will remain, so chance for locally heavy showers and flash flooding will remain those areas.

Wed to Thurs should be mainly fair with dust haze and isolated brief showers. Next Friday to Sunday will have more chances for rainfall. 1 or 2 tropical waves, with upper level support are looking more likely in that period.

An active topical wave is to the east of French Guiana. It is expected to bring rainfall to the Lesser Antilles by Monday afternoon till Tuesday. An upper trough will be over the East Caribbean Sea and help spread moisture to northern islands. Cloudy to overcast skies, some heavy showers, periods of rain and isolated thunderstorms can be expected with gusty winds. 

Potential for localized flood events given recent rainfall. Sunday should be nice, a little hazy, with brief isolated showers. Wed-Thursday is also hazy. Next Friday to Sunday will have more chances for rainfall.

The warmest month of the year based on 1991-2020 reanalysis data for the Lesser Antilles it’s September. Greater Antilles is August, and Guianas is October.