Gaemi, the first typhoon of the season to affect Taiwan, is expected to make landfall on the northeast coast between sometime on Wednesday night and the early hours of Thursday, according to the island’s Central Weather Administration.

Currently categorised as a medium strength typhoon by Taiwan, it is then likely to move across the Taiwan Strait and then hit the southeastern Chinese province of Fujian in the early hours of Friday.

Taiwan’s annual Han Kuang military drills taking place this week have been curtailed, including cancelling fighter jet exercises on the east coast, the defence ministry said.

“The impact from the typhoon at present on the east coast is rather obvious,” ministry spokesman Sun Li-fang told reporters at the Hualien air base. “So we will adjust some of the air and naval elements given the typhoon situation.”

Taiwan’s transport ministry said all ferries to Green Island and Orchid Island, which lie off the southeast coast, were cancelled on Tuesday. Four domestic flights were cancelled, but there was no disruption to international services yet.

Gaemi passed by to the east of the Philippines but did not make landfall, though still brought heavy rain.

While typhoons can be highly destructive, Taiwan also relies on them to replenish reservoirs after the traditionally drier winter months, especially for the southern part of the island.