Asia
Monster storm roars into Philippines
Typhoon Haiyan is battering the central Philippines with sustained winds of up to 320 km/h (199mph).
The storm has forced millions to seek shelter in 20 provinces. At least three people have died, but it may take days before the full damage is known.
The region was already struggling after a powerful earthquake last month.
The authorities have warned that more than 12 million people are at risk from the storm - the equivalent of a category five hurricane.
It has so far lashed central islands including Leyte and Samar, and the northern tip of Cebu - including Cebu city, the country's second largest with a population of 2.5 million.
The Philippines has experienced more than its fair share of super typhoons over the past decade, according to experts. There were at least three of these powerful events in nine of the 10 years between 2002 and 2012.
The islands are unlucky, scattered along the world's most active typhoon belt where plentiful supplies of warm water and moist air provide the energy to kick start super storms.
Despite these factors, Haiyan has shown a number of unusual features which have increased its strength. Normally the walls of the storm that rotate around the eye are replaced as it moves, often weakening the wind speed. In the case of Haiyan this hasn't happened.
Another factor has been the speed of this typhoon. Going so quickly, it hasn't stirred up the waters ahead of it. Slower storms churn up the waters, causing an upwelling of colder water that usually takes the energy from the storm.
However Haiyan has now lost energy over land and is expected to move on to Vietnam as a Category 3 Typhoon in the next few days.
Two people were electrocuted in
storm-related incidents and another was killed after being struck by
lightning, according to officials. Seven others were reported injured.
Save the Children Philippines director Anna Lindenfors predicted a high casualty rate.
"We expect the level of destruction caused by Typhoon Haiyan to be extensive and devastating, and sadly we fear that many lives will be lost," she said in a statement.
Former BBC Manila correspondent Kate McGeown says that while reports are now coming in from some of the affected cities, there is still very little information from the countryside in large areas of the Visayas region such as Negros and Iloilo, and the island of Mindoro.
The storm - known locally as Yolanda - was not expected to directly hit the capital Manila, more than 600km (370 miles) to the north.
Mai Zamora, from the charity World Vision, in Cebu, told the BBC: "The wind here is whistling. It's so strong and the heavy downpours are continuing."
"We've been hearing from my colleagues in [the city of] Tacloban that they've seen galvanised iron sheets flying just like kites."
"It was frightening. The wind was so strong, it was so loud, like a screaming woman. I could see trees being toppled down," Liwayway Sabuco, a saleswoman from Catbalogan, a major city on Samar, told AFP news agency.
Schools and offices closed, while ferry services and local flights were suspended. Hospitals and soldiers are on stand-by for rescue and relief operations.
Protestant pastor Diosdado Casera in Surigao City in north-east Mindanao said the city had missed the worst of the storm but there was a lot of damage.
"The storm was very strong - although Surigao City was not directly hit we experienced its fury early this morning," he said.
"The big buildings made of concrete were fine, but the houses made of wood and shingles and plywood have suffered a lot of damage, mainly to their roof."
A spokesperson for the British Red Cross, Nichola Jones, who is in Tagbilaran in Bohol, says the typhoon had cut power and torn off roof tiles, but was "not too bad".
"But I think to the North - that's the area that has borne the brunt. Those were the areas worst hit by the earthquake last month."
In the worst-hit areas of Samar and Leyte, she says there are reports of collapsed buildings, including a hotel.
"In Cebu they have had quite a battering and I spoke to our colleagues and they've had quite strong winds and are locked down in their hotels. They are waiting to see what the situation is."
Jeff Masters, meteorology director at the private firm Weather Underground, said in a blog post that the damage from Haiyan's winds must have been "perhaps the greatest wind damage any city on Earth has endured from a tropical cyclone in the past century".
Typhoon Haiyan made landfall over Guiuan at 04:40 local time (20:40 GMT on 7 November), with gusts of up to 275 km/h (170 mph), the Philippines' weather service said.
It said the typhoon was set to exit the Philippines after 21:00 local time.
Our correspondent says that, while the country is better prepared than for previous storms, it is not clear whether even buildings being used as storm shelters can withstand these winds.
Waves as high as 15m (45ft) could be seen around the coast, and there was 400mm (15.75 inches) of rain in places.
In its path are areas already struggling to recover from a deadly 7.3-magnitude earthquake last month, including the worst-hit island of Bohol where about 5,000 people are still living in tents.
Meteorologists in the Philippines warned that Haiyan could be as devastating as Typhoon Bopha in 2012, which devastated parts of the southern Philippines and left at least 1,000 people dead.
It is the 25th tropical storm to enter Philippine territory this year.
Labels: Environment, Natural Disasters, Nature
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