There were no major changes for Tropical Depression Seven Wednesday afternoon.
"Deep convection has continued to burst near and to the east of the center of the depression this afternoon, but overall there has been no significant change in the system's organization," said an NHC forecaster.
Despite battling shear and dry air in its general vicinity, the system is expected to be Tropical Storm Fiona by Thursday.
There is no immediate threat to the Gulf Coast or the U.S mainland.
"The system is expected to move through the Leeward Islands late Friday or Friday night, and near the Virgin Islands, Puerto Rico, and Hispaniola this weekend and early next week. Tropical storm watches will likely be required for portions of the Leeward Islands this evening or overnight, and for the Virgin Islands and Puerto Rico on Thursday," said the NHC. "Heavy rains from the depression will begin to affect the northern Leeward Islands late Friday, spreading into the British and U.S. Virgin Islands and Puerto Rico over the weekend. This rainfall may produce isolated flash and urban flooding, along with isolated mudslides in areas of higher terrain."