Maysak became a severe tropical storm twelve hours later. Maysak became a typhoon by 12:00 UTC on August 29 according to the JMA after developing an eye. The storm also began to move towards the north in response to a nearby subtropical ridge of high pressure. On August 30, Maysak's structure became indicative of an impending phase of rapid intensification according to the JTWC. The typhoon developed a central dense overcast that day with an eye embedded within. An approaching trough over eastern China and western Japan caused Maysak to accelerate towards the north as it continued to traverse energetic ocean waters. The typhoon's eye became symmetric and spanned 55 km (35 mi) across. By 21:00 UTC, the eye had contracted to a diameter of 19 km (12 mi). Around that time, the JTWC assessed the typhoon as having one-minute sustained winds of 215 km/h (130 mph). At 00:00 UTC on September 1, the JMA determined that Maysak had ten-minute maximum sustained winds of 110 mph (175 km/h) with gusts of up to 250 km/h (155 mph). The associated barometric pressure was estimated at 935 hPa (mbar; 27.61 inHg). Maysak held this intensity as it began to move into a less conducive environment for storm development within the East China Sea. Soon, Maysak began to weaken steadily as it passed the East China Sea, slowing back down to a Category 3 storm. The storm then made landfall near Busan, South Korea at 02:20 KST on September 3 (17:20 UTC on September 2), with 10-minute maximum sustained winds at 155 km/h (100 mph) and the central pressure at 950 hPa equivalent into a Category 2 typhoon. After that, it crossed the Sea of Japan and hitting North Korea into Jilin, Manchuria in China. Soon after, Typhoon Maysak transitioned into an extratropical low in northeast China. Preparations and impact The storm affected the eastern parts of South Korea, North Korea, China, and Russia, along with the Ryukyu Islands, causing at least 32 deaths and damage to more than 9,200 houses. Total combined economic losses were anticipated to surpass US$100 million. Japan The JMA urged residents of Okinawa to evacuate in anticipation of a potentially "major disaster" from Maysak; 560 people ultimately evacuated. The agency also warned of the possibility of tornadoes in the region. Schools, stores, and public offices throughout the prefecture closed. As many as 266 flights linking to Okinawa were