Hurricane Sam has become a powerful Category 4 storm again with forecasters predicting a glancing blow to Bermuda as it spins north in the Atlantic Ocean.
A tropical storm watch was issued for the island.
The US National Hurricane Center said Sam was centred about 885 kilometres south-southeast of Bermuda and should pass to the east of the island, but storm conditions were expected because tropical storm-force winds extended 240km from its centre.
Sam's top winds were around 230km/h on Thursday night. Its swells also could cause high surf and dangerous rip currents along US East Coast beaches this weekend.
Tropical Storm Victor was also at sea southwest of the Cape Verde islands, far from land, and was expected to become a minimal hurricane Friday night before dissipating in the central Atlantic Ocean, the hurricane centre said.