(AP) — Two storms were gaining force and pushing westward across the Pacific on Monday, at least one of them on a path likely to take it just south of the Hawaiian Islands at week’s end.

The U.S. National Hurricane Center said Hurricane Erick was about 1,110 miles east-southeast of Hilo, Hawaii, Monday evening. It had maximum sustained winds of 75 mph and was moving west at 18 mph.

The center said Erick was expected to begin losing strength late Wednesday and gradually weaken into a tropical storm before nearing Hawaii.

Father to the east, Tropical Storm Flossie formed, and it was following a roughly similar track, though a bit to the north. It was expected to strengthen into a hurricane Tuesday.

It was centered about 895 miles southwest of the southern tip of the Baja California Peninsula and was moving west at 18 mph. The storm had maximum sustained winds of 65 mph.