A tropical depression is developing 1,100 nautical miles south-southeast of Bermuda, according to the US National Oceanic and Atmospheric Administration.

The system — Tropical Depression Three — was forecast to move across the Atlantic and threaten the Lesser Antilles on Thursday or Friday, possibly as a hurricane.

The NOAA warned of heavy rain, high winds and storm surges. As of Sunday morning, wind speeds were less than 39 miles per hour.

“While it is not in the geographical box of our forecasting responsibility, it is noteworthy as the longer-range track has it intensifying and forecasts indicate uncertainty as to if the track curves northwards,” the Bermuda Weather Service said in a statement.