Tropical Storm Harvey intensified Thursday into a hurricane and forecasters said it would become a major hurricane to hit the middle Texas coastline.

Sustained winds reached 80 mph (129 kph) more than a day before landfall was expected late Friday between Port O’Connor and Matagorda Bay, a 30-mile (48-kilometer) stretch of coastline about 70 miles (110 kilometers) northeast of Corpus Christi.

Forecasters said a “life-threatening” storm surge along with rains and wind were likely as Harvey was intensifying faster than previously forecast. A major hurricane means winds greater than 110 mph (177 kph).

More details about preparations, the hurricane’s projected path and arrival can be found here.