Manila residents waded through waist-deep floodwaters and dodged flying debris Tuesday as a powerful typhoon struck the country, killing at least 16 people and sending waves as tall as palm trees crashing over seawalls.

Most deaths occurred in metropolitan Manila, which already was soaked by heavy monsoon rains ahead of Typhoon Nesat's arrival with more downpours and wind gusts of up to 150 km/h. Downtown areas along Manila Bay suffered their worst flooding in decades.

Pounding rains obscured the view of anyone on the streets as soldiers and police scrambled to safely evacuate thousands of people in low-lying areas, where rivers and the sea spilled into shanties, hospitals, swanky hotels and even the seaside U.S. Embassy compound.

"It's flooded everywhere. We don't have a place to go for shelter. Even my motorcycle got filled with water," said motorist Ray Gonzales, one of thousands stranded by fast-rising floodwaters.

Some residents acted more quickly this time to evacuate homes as waters rose, including in the Manila suburb of Marikina where 2,000 people escaped the swelling river by flocking to an elementary school, carrying pets, TV sets, bags of clothes and bottled water.

"We can replace things, but not people's lives," said janitor Banny Domanais, arriving at the school with his wife and three young daughters.

Manila  

Typhoon Nesat hit ashore before dawn Tuesday in eastern provinces and headed inland just north of Manila with up to an inch of rain per hour, half that of the storm two years ago, said government forecaster Samuel Duran.

Emergency workers evacuated river areas in Manila that are notorious for flooding. In all, authorities ordered more than 100,000 people across the country to shelter from the storm's sustained winds of up to 120 km/h and its rains — dropping from an immense 650-kilometre cloud band.

Along downtown Manila's historic baywalk, cars and buses were stuck and residents struggled through floodwaters as waves washed over the seawall, turning a six-lane highway into a huge brown river. Sidewalks and buildings entrances were swamped.

In the financial district of Makati, a billboard fell on two cars and a bus, causing injuries.

Neck-deep waters on the ground floor of the Manila Hospital forced staff to move patients to higher floors and flooded generators left the facility without power, spokeswoman Evangeline Morales said.

Soldiers and police in trucks moved thousands of residents, mostly women and children, from the Baseco shanty facing Manila port after many houses were washed away. Male family members were reluctant to leave, saying they wanted to guard their property.

The Philippine Stock Exchange and U.S. Embassy were closed.

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A man carries his daughter as they walk home in the rain after the suspension of classes due to rainfall from Typhoon Nesat in Quezon City. ((Cheryl Ravelo/Reuters))

  

Waters at the gates of the embassy compound reached chest-deep, and staff on their way into the offices were told to turn around and go home, spokeswoman Tina Malone said.

"There was some flooding in the embassy. I don't know the extent. I'm not there right now," Malone said.

Benito Ramos, a retired army general who heads the Office of Civil Defence, said authorities were still assessing the damage as the typhoon continued to pummel some areas of the country. He said it was heartwarming to see Filipinos remaining calm amid the unfolding crisis.

"We see people on the roofs of their houses drinking gin and smiling and waving," Ramos said. "Such resiliency helps them get by in stressful times."

Seasonal monsoon rains ahead of the typhoon plus winds pushing seawater inland had worsened the situation, forecaster Duran told the AP. "Land is saturated with rain so the next rain became run-off and was already floodwater," he said.

The first reported death was a one-year-old boy who drowned in the central island province of Catanduanes after falling into a creek, the government disaster agency reported. As the typhoon's winds lashed metropolitan Manila, a mother and child were killed when their house was hit by a falling tree, and four were reported killed by a collapsing wall.

Two others drowned, while a man was buried in a landslide in Olongapo west of Manila and another died in traffic collision. A nine-year-old girl was pinned to death when a tree fell on a house in Pampanga province, north of Manila, said regional disaster-response official Josefina Timeteo said.  

Four fishermen were missing while more than 50 others were rescued along eastern shores after their boats overturned in choppy seas. Forecasters warned of four-metre-high waves.  

The storm was expected to depart from the Philippines late Tuesday and head out into the South China Sea toward southern China.