A man running away from a huge wave pushed up by Typhoon Usagi on a wharf in Shantou, south China's Guangdong province. Typhoon Usagi killed at least 25 people after crashing ashore in southern China, throwing the region's transport systems into chaos and leaving tens of thousands of airline passengers stranded in Hong Kong.

A cat lies on a police car which is damaged by a fallen tree after Typhoon Usagi hit Shanwei, Guangdong province September 23, 2013. At least 25 people have been killed, including 13 in Shanwei, since typhoon Usagi made landfall in south China's Guangdong Province on Sunday evening, Xinhua News Agency reported. Picture taken September 23, 2013.

Residents travel in bicycles, tricycles and cars on a flooded street after Typhoon Usagi hit Shanwei, Guangdong province September 23, 2013. At least 25 people have been killed, including 13 in Shanwei, since typhoon Usagi made landfall in south China's Guangdong Province on Sunday evening, Xinhua News Agency reported. Picture taken September 23, 2013.

A man walks under fallen branches on a pavement at a residential district after Typhoon Usagi hit Hong Kong September 23, 2013. A powerful typhoon hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, began pounding the Asian financial centre late on Sunday. More than 370 flights were cancelled.

Passengers wait for their departure at Hong Kong Airport after Typhoon Usagi, the strongest storm to hit the Western Pacific this year, swiped Hong Kong September 23, 2013. A powerful typhoon hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds. More than 370 flights were cancelled.

A man walks over fallen branches on a pavement at a residential district after Typhoon Usagi hit Hong Kong September 23, 2013. A powerful typhoon hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, began pounding the Asian financial centre late on Sunday. More than 370 flights were cancelled.

Passengers wait for their departure at Hong Kong Airport after Typhoon Usagi, the strongest storm to hit the Western Pacific this year, swiped Hong Kong September 23, 2013. A powerful typhoon hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds. More than 370 flights were cancelled.

Visitors take pictures of tidal waves under the influence of Typhoon Usagi in Hangzhou, Zhejiang province, September 22, 2013. According to official Xinhua news agency, China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas. REUTERS/Chance Chan (CHINA - Tags: ENVIRONMENT SOCIETY DISASTER TPX IMAGES OF THE DAY) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

An advertisement board which was toppled over by Typhoon Usagi is pictured in Hong Kong September 23, 2013. A powerful typhoon hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds.

A closed sign is seen at the Hong Kong Stock Exchange after Typhoon Usagi hit Hong Kong September 23, 2013. The Hong Kong Exchange delayed the start of trading due to the powerful typhoon which hit Hong Kong and the southern China coast on Monday, killing at least 20 people on the mainland, crippling power lines and causing flooding and gale force winds.

A man tries to get back into his car as a wave surges past a barrier on the shore during Typhoon Usagi in Hong Kong September 22, 2013. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, headed towards the southern Chinese city of Hong Kong, one of the most densely populated cities on Earth, on Sunday amid warnings of severe flooding as well as strong winds in the event of a direct hit.

People react as waves splash on to the road during Typhoon Usagi in Hong Kong September 22, 2013. A powerful typhoon headed towards the southern Chinese city of Hong Kong, one of the most densely populated cities on Earth, on Sunday amid warnings of severe flooding as well as strong winds in the event of a direct hit.

Passengers from South Korea (L), the Philippines (R) and Poland (4th R), whose flights to their home countries are cancelled in anticipation of typhoon Usagi, charge their tablet and smartphones at Hong Kong International Airport September 22, 2013

A man pushes his bicycle against the wind as Typhoon Usagi approaches Shantou, Guangdong province, September 22, 2013.

A torn advertisement banner hangs before Typhoon Usagi is expected to make landfall, outside a shopping mall at Tsim Sha Tsui shopping district in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

Passengers whose flights are cancelled in anticipation of typhoon Usagi, rest at Hong Kong Airport September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial centre late on Sunday and early on Monday.

Passengers look at an information board which shows nearly all departure flights were cancelled, in anticipation of typhoon Usagi, at Hong Kong Airport September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial centre late on Sunday and early on Monday

A child holds an inside-out umbrella broken due to strong winds before Typhoon Usagi is expected to make landfall, in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

People brave gusty wind outside a shopping mall at Tsim Sha Tsui shopping district before Typhoon Usagi is expected to make landfall in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

A woman braves gusty winds outside a shopping mall at Tsim Sha Tsui shopping district during Typhoon Usagi in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

A man braves gusty winds outside a shopping mall at Tsim Sha Tsui shopping district during Typhoon Usagi in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides

A woman reacts as a storm surge past a barrier on the shore as Typhoon Usagi approaches Shenzhen, Guangdong province, September 22, 2013. China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas, according to the official Xinhua news agency. Major Chinese airlines cancelled flights to cities in the southern provinces of Guangdong and Fujian while shipping was suspended between the Chinese mainland and Taiwan, Xinhua also reported.

People watch waves hit the shores as Typhoon Usagi approaches in Shantou, Guangdong province, September 22, 2013. China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas, according to the official Xinhua news agency. Major Chinese airlines cancelled flights to cities in the southern provinces of Guangdong and Fujian while shipping was suspended between the Chinese mainland and Taiwan, Xinhua also reported

Passengers wait at Hong Kong Airport as flights are cancelled in anticipation of typhoon Usagi, September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday.

Cathay Pacific Airlines displays a notice on disruptions to its service due to typhoon Usagi, at Hong Kong Airport September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday. Cathay Pacific Airways Ltd and its unit Hong Kong Dragon Airlines Ltd will cancel all flights into and out of the international airport from 6 p.m. (1000 GMT) on Sunday.

A information board shows flights cancelled in anticipation of typhoon Usagi, at Hong Kong Airport September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday.

Mainland Chinese passengers eat lunch while waiting at Hong Kong Airport, as flights are cancelled in anticipation of typhoon Usagi, September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday

Passengers wait at Hong Kong Airport as flights are cancelled in anticipation of typhoon Usagi, September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday

Passengers rest at Hong Kong Airport as flights are cancelled in anticipation of typhoon Usagi, September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides. Typhoon Usagi, the strongest storm to hit the Western Pacific this year, is expected to hit the Asian financial center late on Sunday and early on Monday.

People look at the city skyline by the waterfront of Tsim Sha Tsui shopping district hours before Typhoon Usagi is expected to make landfall, in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

People rest by the waterfront of Tsim Sha Tsui shopping district hours before Typhoon Usagi is expected to make landfall, in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

A man walks past the windows of a boutique store that have been taped-up in preparation for Typhoon Usagi at Tsim Sha Tsui shopping district in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

A woman walks past the windows of a boutique store that have been taped-up in preparation for Typhoon Usagi at Tsim Sha Tsui shopping district in Hong Kong September 22, 2013. Hong Kong was bracing on Sunday for this year's most powerful typhoon, with government meteorologists warning of severe flooding created by a double whammy of powerful winds and exceptionally high tides.

A man dodges tidal waves under the influence of Typhoon Usagi in Hangzhou, Zhejiang province, September 21, 2013. China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas, according to the official Xinhua news agency. Picture taken September 21, 2013.

People react after being hit by a tidal wave under the influence of Typhoon Usagi in Hangzhou, Zhejiang province, September 21, 2013. China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas, according to the official Xinhua news agency. Picture taken September 21, 2013.

A man leaves a shopping mall, which entrances are taped in anticipation of Typhoon Usagi, in Hong Kong September 21, 2013.

People watch as a storm surge hits the shores as Typhoon Usagi approaches Xiamen, Fujian province, September 21, 2013. According to official Xinhua news agency, China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas. More than 80,000 people had moved to safety in Fujian province and authorities had deployed at least 50,000 disaster-relief workers. Picture taken September 21, 2013.

Waves caused by Typhoon Usagi rock boats anchored at a port in Quanzhou, Fujian province, September 21, 2013. According to official Xinhua news agency, China's National Meteorological Center issued its highest alert, warning that Usagi would bring gales and downpours to southern coastal areas. More than 80,000 people had moved to safety in Fujian province and authorities had deployed at least 50,000 disaster-relief workers. Picture taken September 21, 2013.

Children swim in a flooded walkway as rough waves crash on concrete banks along the coast of Manila Bay brought by Super Typhoon Usagi in Navotas City, metro Manila September 21, 2013.

A man and a boy sit inside a makeshift raft as they paddle through rough waves brought by Super Typhoon Usagi along the coast of Manila Bay in Navotas City, metro Manila September 21, 2013.

Fishermen ride on their boat as dark clouds loom over the city brought by Super Typhoon Usagi in Navotas City, metro Manila September 21, 2013. southern China, the weather bureau said.

A man leaves a shopping mall, which entrances are taped in anticipation of Typhoon Usagi, in Hong Kong September 21, 2013. Packing winds of 185 kph (114 mph) near the center and gusts of up to 220 kph, Typhoon Usagi on Saturday weakened after hitting the Batanes island group, and is moving slowly west-northwest at 19 kph towards southern China, the weather bureau said.

A girl walks into a shopping mall, which entrances are taped in anticipation of Typhoon Usagi, in Hong Kong September 21, 2013. Packing winds of 185 kph (114 mph) near the center and gusts of up to 220 kph, Typhoon Usagi on Saturday weakened after hitting the Batanes island group, and is moving slowly west-northwest at 19 kph towards southern China, the weather bureau said.

A man holds an inside-out umbrella broken due to strong winds as Typhoon Usagi approaches Taiwan, in Taipei September 21, 2013. Usagi, which has been labelled a super typhoon, made landfall on Itbayat, the Philippine island closest to Taiwan, toppling communication and power lines, uprooting trees, causing landslides and flooding rice and garlic farms.

A big wave smashes into a breakwater as Typhoon Usagi approaches the eastern coastal town of Taitung September 21, 2013. Usagi, which has been labelled a super typhoon, made landfall on Itbayat, the Philippine island closest to Taiwan, toppling communication and power lines, uprooting trees, causing landslides and flooding rice and garlic farms.

Fishermen ride on their boat as dark clouds loom over the city brought by Super Typhoon Usagi in Navotas City, metro Manila September 21, 2013. The year's most powerful typhoon slammed into the Philippines' northernmost islands on Saturday, cutting communication and power lines, triggering landslides and inundating rice fields, officials said. Packing winds of 185 kph (114 mph) near the center and gusts of up to 220 kph, Typhoon Usagi weakened after hitting the Batanes island group, and is moving slowly west-northwest at 19 kph towards southern China, the weather bureau said.

Fishermen secure ropes holding their boats as rough waves crash along the coast of Manila Bay brought by Super Typhoon Usagi in Navotas City, metro Manila September 21, 2013. The year's most powerful typhoon slammed into the Philippines' northernmost islands on Saturday, cutting communication and power lines, triggering landslides and inundating rice fields, officials said. Packing winds of 185 kph (114 mph) near the center and gusts of up to 220 kph, Typhoon Usagi weakened after hitting the Batanes island group, and is moving slowly west-northwest at 19 kph towards southern China, the weather bureau said.