Typhoon Vongfong may be slowly weakening, but it will not weaken enough in the hours before delivering a strong hit to Japan’s Ryuku Islands, including Okinawa.

As of 6 p.m. Japanese time Friday (5 a.m. EDT in the U.S.), the eye of Vongfong was roughly 300 miles south-southeast of Kadena Air Base on Okinawa, moving north at 9 mph. MORE