|Category 5 super typhoon (SSHWS)|
|Formed||July 25, 1956|
|Dissipated||August 5, 1956|
|Highest winds||1-minute sustained: 295 km/h (185 mph) |
|Lowest pressure||915 hPa (mbar); 27.02 inHg|
|Areas affected||Taiwan and China|
|Part of the 1956 Pacific typhoon season|
A tropical depression developed southwest of Guam on July 25. It moved north-northeastward, passing east of the Northern Marianas. On July 27, it intensified into a tropical storm and was designated Wanda. On the same day, the storm turned more westward, steered by the subtropical ridge to the north. Low wind shear and warm waters allowed Wanda to intensify steadily, developing into an intense typhoon. On July 30, reconnaissance aircraft recorded a minimum pressure of 902 mbar (26.6 inHg), and the peak winds were estimated at 295 km/h (185 mph). After passing through the Miyako Islands, Wanda weakened slightly and traversed the East China Sea. On August 1, the typhoon made landfall in eastern China near Zhoushan, Zhejiang, producing a pressure of 923 mbar (27.3 inHg); this was the lowest pressure recorded in China from a tropical cyclone. Wanda slowly weakened while progressing through China, dissipating on August 5.
Taipei on Taiwan recorded 297.3 mm (11.70 in) of rainfall over three days while the typhoon would pass to the north. Along the coast of Zhejiang, Wanda produced a 5.02 m (16.5 ft) storm surge that destroyed 465 seawalls and 902 boats. The storm also flooded crop fields, destroying 20,380 tons of wheat. Across Zhejiang, 2.2 million houses and 38.5% of the main roads were damaged during the storm. Nationwide, Wanda killed 4,935 people and injured 16,617 others.