( CNN ) -- At least 50 people were injured and 271,400 households rendered without power after Typhoon Jelawat struck Okinawa island of Japan , disaster officials there said Saturday . As the storm roared toward other Japanese islands , three people were injured in the southernmost part of Kyushu , the Disaster Management Office of the Kagoshima prefectural government said . The typhoon is expected to strike the Japanese mainland Sunday . The latest typhoon to hit the region in recent weeks , 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 . 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 before the typhoon strike . `` 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 the current typhoon , passed over Okinawa on its way to South Korea . Local media reported Jelawat 's 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 . Typhoon Sanba rumbles over Okinawa . CNN 's Michael Martinez contributed to this report .
NEW : `` Jumpin ' Jelawat '' pummels Okinawa , injuring at least 50 people . NEW : More than 270,000 households are powerless on Okinawa . A U.S. base on Okinawa posts pictures from the storm . Strong winds have overturned vehicles .