Nadine still moving in eastern Atlantic 24 (UPI) -- Tropical Storm Nadine weakened as it trekked across the eastern Atlantic Ocean Monday, the National Hurricane Center in Miami said. Nadine, with maximum sustained winds of 55 mph, was about 455 miles south of the Azores, moving west-northwest at 7 mph, the hurricane center said in its 5 a.m. Forecasters said Nadine wasn't expected to change in intensity much during the next two days. Tropical storm-force winds extended outward up to 230 miles from the storm's center. Nadine was expected to shift gradually to the west and southwest, increasing its forward speed during the next several days.