Typhoon Jelawat roars over Japan's island of Okinawa September 29, 2012 -- Updated 0740 GMT (1540 HKT) Effects of typhoon Jelawat overturn a vehicle in Naha City, Okinawa prefecture. Jelawat should sweep along Japan's east coast If wind streams out of China prevail, the cyclone could miss landfall in Japan A U.S. base on Okinawa posts pictures from the storm Strong winds have overturned vehicles (CNN) -- Typhoon Jelawat roared over the Japanese island of Okinawa on Saturday, weather agencies said, the latest to hit the region in recent weeks. The typhoon is expected to rake the island's east coast before making landfall in the mainland Sunday. Jelawat is a "very strong" storm with maximum sustained winds near the center of just over 100 mph (165 km/h), the Japan Meteorological Agency said. A NASA advisory said the cyclone was comparable to a category 3 hurricane. If it maintains its current path straight up the Ryukyu island chain, the center should roll ashore the mainland south of Osaka City in a day, the meteorological agency said. But the cyclone has lost some of its might, and should continue weakening while moving into colder waters, said CNN meteorologist Karen Maginnis. Wind troughs out of China could divert Jelawat away from land and into the open Pacific Ocean. This has not kept Okinawa from feeling the might of Jelawat's gusts, although there have been no reports of major damage. "The winds are screaming through the streets," storm chaser James Reynolds said from Okinawa. I've seen at least one window blow out. He explained that buildings on the island are constructed to withstand the frequent Pacific typhoons. Just two weeks ago, Sanba, a category 3 storm with slightly stronger winds than Jelawat's, passed over Okinawa on its way to South Korea. Local media reported gusts had overturned motor vehicles. A U.S. Air Force base on the island recorded a gust of 180 mph, Maginnis said. Kadena Air Base posted comments, photos and videos from the storm on its Facebook page. "Jumpin' Jelawat!" a comment read. OK, this is the back side of Jelawat. Impressive. Scary impressive. The base lost its American Forces Network television signal, according to one photo post with a descriptive caption saying the storm "decided to make a taco out of one of our satellite dish." The page held a contest for the best storm picture. Potential winning images -- containing the worst damage -- displayed a single car that the wind had overturned and roof damage to a home.