As Chantal tracks west-northwestward across the Caribbean, the greatest threat from the tropical storm will be from flooding this week.
The Windward islands (Guadeloupe, Dominica, Martinique, St Lucia, St Vincent and Grenadines, Grenada)will experience tropical storm conditions Tuesday, followed by similar conditions over parts of the U.S. Virgin Islands and Puerto Rico Tuesday night and Wednesday. Haiti and the Dominican Republic would be impacted by Chantal later Wednesday into Thursday.
While fast movement of Chantal will limit the amount of rain on the smaller islands, large mountains on the Greater Antilles will squeeze out tremendous moisture, regardless of the forward speed of the storm.
All interests from the Lesser Antilles to eastern Cuba should be prepared for mudslides and flash and urban flooding.
Chantal will also generate heavy seas and rough surf along its path.
There is the potential for damaging winds and power outages, especially if the tropical system reaches hurricane status along its journey.
http://www.accuweather.com/en/weather-news/chantal-brings-a-risk-of-flood/15039746
Late in the week, Chantal is forecast to turn on a more north to northwest path, which will take it over the Bahamas and waters just east of Florida.