outer bands brought heavy rain across Taiwan and the Philippines causing moderate damage. On September 5, a tropical depression formed near the Japanese island of Iwo-To. The JTWC designated the system as Invest 91W upon formation. The depression later intensified into a tropical storm and was named Muifa by the JMA. Muifa then intensified further into a Category 1 typhoon as it was located south of Okinawa. The typhoon reached its peak intensity as a Category 4 typhoon and passed the Yaeyama Islands on September 12 as it headed north very slowly while weakening. Muifa then slightly regained its strength in the East China Sea and made landfall near Shanghai in China two days later. The typhoon suspended several flights and port activities within the city. Muifa also became the strongest typhoon to strike Shanghai, beating the previous record set by Typhoon Gloria in 1949. Muifa then degenerated into a remnant low over the Chinese mainland until it was last noted on September 16. On September 9, a tropical depression formed west of Wake Island. The JTWC later designated the depression as 15W. It was then named Merbok as it strengthened into a tropical storm on September 12. Merbok then further intensified into a Category 1 typhoon before it headed north and transitioned into an extratropical cyclone by September 15. Merbok's remnants later brought gale force winds along Alaska. It then entered the Bering Sea, generating a dangerous storm surge which inundated several coastal villages and towns. Despite the impact, no injuries were reported. On September 11, the JMA began tracking a weak tropical depression which formed east of Iwo-To. The JTWC followed suit and designated the system as 16W on the next day. The depression later strengthened into a tropical storm and was named Nanmadol by the JMA. Nanmadol then intensified into a Category 1 typhoon on the same day. It further reached its peak intensity as a Category 4 typhoon as it approached Japan. The approaching typhoon prompted the JMA to issue a special warning which advised at least 4 million people to evacuate. Nanmadol then made landfall on the island of Kyushu. The typhoon then turned east before weakening further on September 19. Nanmadol killed at least 2 people and left more than 70 people injured. Additionally, the typhoon left more than 200,000 people without electricity. After Nanmadol, the monsoon trough east of the Philippines set up,