A system of disturbed weather near Puerto Rico has not become any better organized today, forecasters at the National Hurricane Center in Miami said.

The system, located between Puerto Rico and Hispaniola, is drifting westward.

"Upper-level winds are not favorable for significant development," forecasters said in a statement today.

"Although the potential for the formation of a tropical depression has disminished, squalls producing brief periods of heavy rainfall and strong gusty winds ... are possible over the Virgin Islands, Puerto Rico and Hispaniola today," forecasters said.

A hurricane hunter aircraft is scheduled to investigate the system this afternoon.