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"The liberal soul shall be made fat, and he that watereth, shall be watered also himself." -- Proverbs 11:25 |
Australia's Cyclone Yasi, with winds of up to 300 km (186 miles) per hour, is so powerful it could blow apart even "cyclone proof" houses, engineers said on Wednesday.
Yasi is headed for major towns and cities along the northeast coast. It is believed to be the strongest ever to hit Australia, surpassing Cyclone Tracy which largely destroyed the northern city of Darwin in 1974.
"Once you get to extreme cases, you are in uncharted ground and the test data I have got I would not trust it if I had to live there myself," said Dr Robert Leicester, a researcher with the government's national scientific research body.
Leicester, of the Commonwealth Scientific and Industrial Research Organisation, has studied the impact of Australia's two previous worst cyclones, Tracy and Cyclone Larry in 2006.
"Of the cyclones up to now since Tracy, you have not really had a direct hit on places with a lot of housing," he said.
Building standards have been tightened significantly since Tracy killed 71 people and destroyed about 70 percent of the northern city of Darwin.
But they may be no match for cyclones the size of Yasi. Standards are already being reviewed because of worries that cyclones are getting stronger and moving further south.
Engineers said that while most modern homes were designed to withstand high wind-speeds, pressures were different during a severe cyclone which could suck walls out and blow roofs off buildings.
Structures in the region built before 2002 were designed to withstand winds of 252 kph and those built since then for winds of 265 kph, according to Professor Mark Bradford, of the University of New South Wales' School of Civil and Environmental Engineering.
Smaller building are particularly vulnerable. "It doesn't look particularly good, it is quite scary."
Labels: weather
The roof of the Hubert H. Humphrey Metrodome in Minneapolis deflated early Sunday morning, leaving the scheduled football game between the Minnesota Vikings and Giants – which had already been postponed from Sunday to Monday because of the weekend blizzard – in further limbo.
The National Football League scrambled Sunday morning to determine where the game would be played. Late Saturday night, the game was delayed because of concerns that the snow on the dome roof could not safely be cleared by workers in high winds.
Metrodome officials said they found tears in the roof on Sunday and that it was unlikely they could prepare the dome in time for a game on Monday.
Bill Lester, the executive director of the Metropolitan Sports Facilities Commission, said the dome suffered damage to two of its triangle-shaped Teflon panels and that his crew was still assessing the situation.
The N.F.L. could move the football game to someplace like the University of Minnesota’s outdoor football stadium, although it too would have to be cleared of 17 inches of snow.
That could present further problems for the Giants, whose flight was diverted Saturday to Kansas City when snow closed the Minneapolis airport. Anticipating an indoor game, they likely did not bring cold weather gear to Minneapolis.
Labels: football, karma, New York Jets, sports, weather

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