Shanshan also knocked power out to thousands of homes in the two countries, and killed at least eleven people.

[3] On September 9, 2006, the Japan Meteorological Agency identified a tropical depression with 25-knot 10-minute average sustained winds about 500 kilometres (300 mi) north-northeast of Yap, near latitude 14.0°N longitude 139.0°E.

[4] Later that day, the Hong Kong Observatory (HKO) picked up on the tropical depression and started issuing track forecasts for the system.

[5] As the system continued to move northwestward, the Joint Typhoon Warning Center initiated advisories on Tropical Depression 14W on the morning of September 10.

Just before crossing the island of Hokkaidō, according to the JMA's best-track graphic, Severe Tropical Storm Shanshan became extratropical twelve hours later.

[4] In anticipation of Typhoon Shanshan, the Taiwan Central Weather Bureau issued a marine warning for all ships in the areas around the north and the east coasts of the island and in the Bashi Channel.

Okinawa was put under Tropical Cyclone Condition of Readiness (TCCOR) 1-E, which means that all outdoor activities are prohibited as there are sustained winds of at least 50 knots (93 km/h; 58 mph) in force, on September 16, with over 100 flights into and out of Naha International Airport on the island cancelled.

[13] Only one vessel, the USS Tortuga (LSD-46) remained in port for repairs,[11] because authorities thought that the ship could withstand the storm.

[14] Typhoon warnings were issued for Jeju and the southern and eastern coasts of South Korea ahead of the storm.

In South Gyeongsang Province, authorities banned departures from the port at Tongyeong, stranding over 16,000 fishing boats.

Mount Jiri was also closed ahead of the storm's passage through Korea, which was expected to bring up to 100 mm (3.9 in) of rain.

[20] Over 25,000 homes on Ishigaki lost power after 182 utility poles were downed by the storm,[21] and at least 12 people on the island were injured.

[11] At Kadena Air Base, 2 inches (51 mm) of rain were reported, with a maximum gust of 63 mph (101 km/h) recorded.

[23] On the island, an electrician in Fukuoka Prefecture died after an industrial container at his firm fell on top of him, crushing him.