From Accuweather:
Tropical Storm Gaston; Disturbance east of Lesser Antilles possible threat to Bahamas and Florida late this weekend, early next week
8/24/2016 11:00:32 AM
Tropical Storm Gaston is currently moving northwestward at a brisk pace away from the Cabo Verde Islands. Conditions will be favorable for steady strengthening over the next 24-36 hours and is expected to become a hurricane later Wednesday. Later this week, strong upper-level winds causing shear may limit further strengthening of Gaston while it tracks to the northwest into the open waters of the central Atlantic. Long range computer models show the wind shear lessening over the weekend and it is possible that Gaston strengthens even further over the open waters of the central Atlantic.
Elsewhere, a strong tropical wave located over the northern Leeward Islands has a broad circulation that is oriented from west to east. Favorable environmental conditions in the path of this system will allow for slow strengthening across the northern Leeward Islands or the Virgin Islands over the next 24 hours and from there it depends on where a low level center may track. A path north of the Greater Antilles into the Bahamas favors a better chance of a stronger system affecting the Bahamas over the weekend and perhaps southern Florida late this weekend or early next week. A farther south path favors a lower chance of a stronger system due to interaction with Puerto Rico and Hispaniola. Residents of these islands as well as those in Florida will want to keep a close watch on the progress of this system.
This tropical system will bring gusty winds, heavy rain, possible flooding to the northern Lesser Antilles into Wednesday morning before impacting the Virgin Islands and possibly Puerto Rico later Wednesday and Wednesday night.