Last Updated 2:28 p.m. ET
Powerful Hurricane Igor threatened to become a Category 5 storm Monday as it churned far out over the Atlantic Ocean.
Igor was at Category 4 strength with maximum sustained winds of 150 mph. But the U.S. National Hurricane Center in Miami said Igor could reach Category 5 strength later in the day.
Meanwhile, Tropical Storm Julia in the eastern Atlantic is getting stronger.
Igor was located about 880 miles east of the Northern Leeward Islands and slowing, moving west near 10 mph.
Tropical storm force winds extend outward from Igor's center up to 175 miles.
A turn toward the west-northwest was expected Monday night or Tuesday, the hurricane center said. The forecast track shows it staying well south of Bermuda for the next five days.
It's too early to tell if it might threaten land beyond that.
Also in the Atlantic, Tropical Storm Julia was moving westward, away from the southern Cape Verde Islands.
At 2 p.m. ET Julia was about 155 miles west of the southernmost Cape Verde Islands and moving west-northwest at near 13 mph. The storm's maximum sustained winds were near 45 mph.
Officials issued a tropical storm warning for the Southern Cape Verde Islands including Maio, Sao Tiago, Fogo and Brava.
Forecasters say Julia is strengthening and could become a hurricane - the season's fifth - in a couple of days.