By Yimou Lee, Fabian Hamacher and Ann Wang
KAOHSIUNG, Taiwan (Reuters) -Taiwan mobilised nearly 40,000 troops on Tuesday to be on standby for rescue efforts as powerful Typhoon Krathon approached its populous southwest coast which is bracing for a storm surge.
As the typhoon approached, helicopters lifted to safety 19 sailors forced to abandon ship when it took on water.
Some flights were cancelled, a rail line was closed and in the major port city of Kaohsiung, shops and restaurants shut and streets were mostly deserted. The Taipei city government declared a typhoon holiday for Wednesday, closing the island's financial markets.
Taiwan regularly gets hit by typhoons but they generally land along the mountainous and sparsely populated east coast facing the Pacific. This one will make landfall on the island's flat western plain.
Krathon is forecast to hit Kaohsiung early on Wednesday afternoon, then work its way across the centre of Taiwan heading northeast and cross out into the East China Sea, the Central Weather Administration (CWA) said.
Kaohsiung, home to some 2.7 million people, declared a holiday and told people to stay at home as Krathon - labelled a super typhoon by the U.S. Navy's Joint Typhoon Warning Center - approached.
Li Meng-hsiang, a forecaster for Taiwan's Central Weather Administration, said the storm has reached its maximum intensity and could weaken slightly as it moves closer to Taiwan, warning of gusts of more than 150 kph (93 mph) for the southwest.
"The storm surge might bring tides inland," Li said. "If it's raining heavily it will make it difficult to discharge waters and as a result coastal areas will be subject to flooding."
Kaohsiung Mayor Chen Chi-mai, speaking to reporters after a disaster management meeting, said the strength and path of the storm were both on par with 1977's Typhoon Thelma which killed 37 people and devastated the city.
"After the typhoon, the whole of Kaohsiung was without water and electricity, just like a war," Chen said, recalling the decades-ago destruction. "As much as possible, limit going out."
Taiwan's defence ministry said it had put more than 38,000 troops on standby, as Kaohsiung residents made their own preparations.
"It's going to strike us directly. We must be fully prepared," said fisherman Chen Ming-huang, as he tightened ropes on his boat in Kaohsiung harbour. "In the worst-case scenario the ropes might snap and my boat could drift away."
TSMC, the world's largest contract chip maker and a major supplier to Apple and Nvidia and which has a large factory in neighbouring Tainan, said it had activated routine typhoon preparations and did not expect a significant impact to its operations.
SAILORS RESCUED
Off the southeast coast, Taiwan rescue helicopters lifted to safety 19 sailors from a listing cargo vessel travelling from China to Singapore, the government said. The sailors were taken to shelter on Taiwan's remote Orchid Island.
The transport ministry said 88 domestic flights and 24 international ones had been cancelled, with boats to outlying islands also stopped. It added that all domestic flights - 234 in total - would stop on Wednesday.
The rail line connecting southern to eastern Taiwan was closed, though the north-south high speed line was operating as normal, albeit with enhanced safety checks for wind and debris.
In Kaohsiung, most shops and restaurants pulled down their shutters, and traditional wet markets shut with streets mostly deserted.
At a building in Siaogang district, home to the city's airport, residents practiced how to rapidly set up metal barriers to stop water flooding into the underground parking lot.
"We will have only a few minutes to react if the flooding is coming," said Chiu Yun-ping, deputy head of the building's residents' committee.
Chen Mei-ling, who lives near the harbour, said in past typhoons high tides reached just a few metres (yards) from her house's main door and she had made preparations.
"We've got torches and emergency food supplies," Chen said. "It's a strong typhoon and we are worried."
(Reporting by Yimou Lee, Fabian Hamacher and Ann Wang; Writing by Ben BlanchardEditing by Shri Navaratnam, Miral Fahmy and Neil Fullick)
