橫瀾島
While Andy was in Taiwan Straits, a No 1. hurricane signal was issued for Hong Kong on July 28. The next day, this was upgraded to a No. 3 hurricane signal. All signals were dropped after Andy weakened to a tropical storm. A minimum pressure of was recorded at the Hong Kong Royal Observatory (HKO) on July 29. Waglan Island recorded a peak wind speed of . Meanwhile, Green Island observed a peak wind gust of . Tate's Cairn observed of rain during the passage of the storm, the highest in the vicinity of Hong Kong. Overall, damage in Hong Kong was minor.