Taiwan expects Typhoon Kong-rey to make landfall on Thursday on the island's sparsely populated east coast, issuing a warning on Wednesday ahead of the powerful storm which will bring driving rain and strong winds across a swath of the island. Packing gusts of more than 230 kph (143 mph), Kong-rey has strengthened into the equivalent of a Category 4 hurricane and is expected to further intensify before hitting land in Taitung county, according to Tropical Storm Risk. The storm is then forecast to cross Taiwan's south, enter the Taiwan Strait and head towards China, Taiwan's Central Weather Administration said. Up to 1.2 metres (3.9 feet) of rainfall is expected in mountainous eastern Taiwan and destructive winds are likely to hit coastal areas on Thursday, according to the administration. Forecaster Stan Chang said it was relatively rare for a strong typhoon to directly hit Taiwan this late in the year, pointing to the still favourable environment for typhoons, including warmer sea temperatures in the Pacific and a later than normal cold front from the north. Chang said Kong-rey is likely to further strengthen into a "strong typhoon", the most powerful storm level for Taiwan. "We must urge people to make preparations. It's a strong typhoon with a large size," he added. Heavy rain is also expected in the north around the capital Taipei throughout the day on Thursday, the administration said. Subtropical Taiwan is frequently hit by typhoons. The last one, Typhoon Krathon, killed four people earlier this month as it passed through the south of the island.