MEXICO CITY (AP) — Tropical Storm Orlene formed off Mexico’s Pacific coast Thursday and was forecast to strengthen to a hurricane before making a projected landfall early next week.

The U.S. National Hurricane Center said Orlene had maximum sustained winds of 45 mph (75 kmh) and was moving west-northwest at 10 mph (17 kmh). It forecast that Orlene would become a hurricane Friday night.

The storm was centered about 290 miles (465 km) south-southwest of Manzanillo. While still days away, landfall was expected to be in Mexico’s Sinaloa state.