For the latest on the storm, check out Thursday’s coverage.

A super typhoon in the Pacific Ocean could hit Japan on Saturday, potentially causing grave damage in Tokyo, experts said.

T he center of Super Typhoon Hagibis was roughly 950 miles south of Tokyo as of Thursday morning local time, according to Brandon Bukunt, a meteorologist with the National Weather Service in Tiyan, Guam .

The storm was moving about nine miles per hour to the north, and expected to pass along the east coast of Japan on Saturday evening, he said. The fastest sustained winds of the storm, as estimated by satellites, were 160 miles per hour, equivalent to a Category 5 hurricane; a storm with sustained winds of over 150 miles per hour is classified as a super typhoon.

The storm is expected to weaken, with winds at about 90 miles per hour, as it approaches Japan. Mr. Bukunt predicted heavy rain there starting late Friday or early Saturday. The storm, he said, is expected to undergo “an extra-tropical transition” in the following days and become a large storm in the Bering Sea.