trough weakened the ridge. At 1900 UTC on September 10, the typhoon passed within 10 km (7 mi) of Miyako-jima. While the eye was passing over the island, the pressure fell to and winds reached 250 km/h (155 mph). Maemi weakened slightly as it continued north, passing about 220 km (140 mi) west of Okinawa on September 11 while undergoing an eyewall replacement cycle. Increasingly hostile conditions from the approaching trough caused further weakening, and the JTWC estimated the typhoon passed just east of Jeju Island with 1-minute winds of 185 km/h (115 mph) at 0600 UTC on September 12. Shortly after, Maemi made landfall just west of Busan, South Korea, with the JMA estimating 10-minute winds of 140 km/h (85 mph), and JTWC estimating 1-minute winds of 165 km/h (105 mph). Risk Management Solutions estimated landfall winds of 190 km/h (120 mph), which surpassed Typhoon Sarah in 1959. This made Maemi the strongest typhoon to strike the country since the Korea Meteorological Administration began keeping records in 1904. The storm was able to maintain much of its intensity due to warm sea surface temperatures and its fast forward motion. Maemi rapidly weakened to tropical storm status while moving over land, and was undergoing extratropical transition by the time it entered the Sea of Japan. Increasing wind shear removed the convection from the increasingly ill-defined circulation center. The JTWC issued its final warning on Maemi early on September 13, declaring the storm extratropical. The JMA followed suit later that day, tracking Maemi over northern Japan and declaring it extratropical over the Sea of Okhotsk. The remnants of Maemi persisted for several more days, until the JMA stopped tracking it on September 16 southwest of the Kamchatka Peninsula. According to the Mariners Weather Log, the remnants of Maemi continued to the east, eventually striking the coast of Alaska on September 21. Preparations In Japan, the threat of the typhoon caused airlines to cancel 145 flights, mostly in and around Okinawa. About 50 American army bases in Okinawa were closed, and non-essential workers were told to remain home. Before Maemi made landfall in South Korea, officials issued flood warnings along the Nakdong River due to dams opening floodgates. About 25,000 people were forced to evacuate, either to schools or relatives' houses. The Korea Meteorological Administration advised travelers to take precaution in advance of the storm. Ferry and airplane services were canceled to