Erin could become a major hurricane, a designation that occurs when a storm's wind speeds reach 111 mph or higher, classified as a Category 3 hurricane. Should it strengthen as meteorologists expect, ...

Tropical Storm Erin formed in the Atlantic on Monday, according to the National Hurricane Center. As of the 5 a.m. advisory, Erin was located about 490 miles west-northwest of the Cabo Verde Islands ...

As of the latest advisory on Aug. 11, Invest 97L has a high chance — 90% — chance of strengthening in the next seven days.