HILO, Hawaii (AP) — Tropical Storm Henriette rapidly strengthened into a hurricane Sunday in the central Pacific Ocean with further strengthening expected, but it poses no threat to land, the National Hurricane Center said.

The Miami-based center said the storm was located about 445 miles (720 kilometers) north-northeast of Hilo, Hawaii, with maximum sustained winds of 80 mph (130 kph).

It was moving northwest at 17 mph (28 kph) on a course that’s expected to take it well north of the Hawaiian islands over the next few days. The storm was expected to strengthen through Monday followed by weakening on Tuesday.

The center described Henriette as a small tropical cyclone. Hurricane-force winds extended outward up to 15 miles (30 kilometers) from the storm's center.

Tropical Storm Ivo was a

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