 The initial disturbance formed in the South China Sea in late June as a monsoon depression. A weak low-level circulation formed on June 27, but convection remained far from the center. By June 29, convection had become nearer to the center and it qualified as a tropical depression. No additional development was seen through June 30 as the system moved northward. The cyclone turned east-northeast, paralleling the coast of China. When tropical storm force winds were observed in Hong Kong, the cyclone was upgraded to a tropical storm late on June 30. Winds gusted to 53 knots (98 km / h) at Tate's Cairn, and 279.2 millimetres (10.99 in) of rain fell from the cyclone. Quickly weakening back to a tropical depression early on July 1, Tess dissipated as it approached the Formosa Strait.
