Typhoon Hinnamnor continues to move northward, bringing fierce winds to the Sakishima Islands and Kumejima Island in Okinawa Prefecture.
The Japan Meteorological Agency warns of strong winds and high waves on those islands. It also says there could be flooding and landslides in the Sakishima Islands and the main island of Okinawa.
The agency says the storm was traveling at about 15 kilometers per hour north over waters about 200 kilometers north-northwest of Miyako Island at 1:00 p.m. Sunday.
It has a central atmospheric pressure of 950 hectopascals. The maximum wind velocity around its center is 144 kilometers per hour, with gusts of 216 kilometers per hour.
The storm is packing winds of 90 kilometers per hour or more within a radius of 240 kilometers of its core on the eastern side and 165 kilometers on the western side.
Gusts stronger than 140 kilometers per hour were recorded at the Miyako airport at 8:08 a.m. They were about 137 kilometers per hour at Ibaruma in the city of Ishigaki at 6:04 a.m.
The storm is expected to approach the main island of Okinawa again sometime around noon on Sunday.
Fierce winds are expected to blow until late at night in Kumejima Island.
Weather officials say that waves as high as 10 meters are expected in the Sakishima Islands, 9 meters in the main island of Okinawa and 6 meters in the Daitojima region.
Maximum rainfall of about 50 millimeters per hour is expected in the Sakishima Islands and the main island of Okinawa on Sunday. Officials warn that a band of heavy rain clouds could form before noon and rapidly increase the risk of disaster.
The officials are calling on residents to stay alert for fierce winds and high waves in the Sakishima Islands and Kumejima Island and landslides and flooding in the low-lying areas of the Sakishima Islands and the main island of Okinawa.