Ferry routes have been suspended, construction halted, fishermen evacuated and drones deployed to patrol over the sea as China’s coastal provinces prepare for the landfall of Typhoon Dolphin , the fourth typhoon to hit the country this summer. As of Friday morning, Dolphin was about 820km (510 miles) from China’s east coast, the National Meteorological Centre said. It is forecast to make landfall between Zhejiang and Fujian provinces sometime from Sunday afternoon to Monday morning. The centre’s meteorologist Shen Yuyang said that by Friday morning, the typhoon had grown to nearly 13 times the size of Zhejiang, which is equivalent to 1,230 times the size of Hong Kong. With Typhoon Dolphin approaching the 48-hour alert zone, Chinese authorities had deployed new technology to prepare for its arrival, state broadcaster CCTV reported on Thursday.