The 21st named storm of the 1971 Pacific typhoon season, Rose developed from an area of disturbed weather while west of Guam on August 9.
Rose weakened significantly while crossing the island of Luzon and was a minimal typhoon upon reaching the South China Sea on August 14.
Thereafter, the storm weakened slightly before making landfall at Lantau Island, Hong Kong, with winds of 165 km/h (103 mph) late on August 16.
Offshore Hong Kong, storm surge and heavy waves sank or severely damaged at least 300 boats, causing 110 deaths and 283 injuries.
A fire ignited at a large power sub-station in Kwun Tong and was difficult to extinguish due to strong winds.
On August 6, the Japan Meteorological Agency (JMA) began monitoring an area of disturbed weather in the vicinity of the Federated States of Micronesia.
Radars at Fleet Weather Central and Andersen Air Force Base on Guam detected spiral convective bands crossing the island on August 9.
[2] At 00:00 UTC the following day, the system developed into Tropical Storm Rose while located 110 mi (180 km) west of Guam.
Early the following day, the system briefly weakened back to a tropical storm, before re-acquiring typhoon status hours later.
[1] The storm weakened further while crossing island of Luzon and emerged into the South China Sea early on August 14 as a minimal typhoon.
A high-pressure area that had steered the typhoon for the last several days weakened significantly, causing Rose to re-curving northwestward and decelerated to a forward speed of 8 mph (13 km/h).
[1] Later that day, a ship in the vicinity of the eye observed a barometric pressure of 950 mbar (28 inHg) – the lowest in relation to the cyclone.
[2] At around 12:00 UTC on August 16, reports from the JTWC indicate that Rose weakened slightly while approaching the Hong Kong and the coast of China.
[2] Moving inland, the system rapidly weakened to a tropical storm early on August 17 and dissipated shortly thereafter.
The storm surge and heavy waves proved dangerous to ships offshore, at least 300 boats sank or were badly damaged by the typhoon.
[3] One landslide buried four children after crashing into their village hut, killing two, while one survived and was taken to the hospital, and the fourth remained missing.