US braces for iciest Christmas in decades, temperature can dip to -45C
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Temperature in parts of the US can plunge to -45C or even -60C by the end of this week, warned the National Weather Service, as the country braces for the iciest Christmas in decades.

Meteorologists say the winter storm could become a “bomb cyclone” by Friday. Bomb cyclone is a term given to an explosive storm that intensifies rapidly, with its central air pressure dropping by at least 24 millibars in 24 hours.

According to experts, the falling temperatures wreaking havoc across the US and Canada can lead to frostbite on bare skin in only five to 10 minutes, as a powerful Arctic winter storm has placed more than 135 million people under weekend weather alerts ahead of the busiest travel days of the year.

The alerts stretch from coast to coast and reach as far south as the US-Mexico border and Florida, the Sunshine State. Major airports have cancelled thousands of flights as the storm intensifies. Even in major metro areas, like the city of Des Moines, Iowa, frostbite will be a major danger.

Frostbite is caused when blood flow is reduced, often to extremities like the nose and cheeks or fingers and toes. The lack of warm blood can lead to tissue freezing and rupturing, and in some cases, amputation.

“This is not like a snow day, when you were a kid, this is serious stuff,” President Joe Biden said in a White House briefing on Thursday.

The Arctic air mass is projected to bring strong wind gusts and temperature of -9.4C to as far south as El Paso, Texas, where newly-arrived undocumented migrants are sleeping rough on city streets.

New York State Governor Kathy Hochul declared a state of emergency in anticipation of the storm. The threat of flooding and ice jams are “going to wreak a lot of havoc in our community”, she said. Ice jams happen when large pieces of ice block the flow of a river and can cause flooding.

The governors of Kentucky, North Carolina, West Virginia, Georgia and Oklahoma have also declared states of emergency, while Wisconsin declared an “energy emergency”.

Ohio governor, Mike DeWine, called the weather a “unique and dangerous situation”, particularly as people travel to be with loved ones over Christmas.

Florida is projected to see its coldest Christmas in 30 years.

The National Weather Service has described it as a “once-in-a-generation” winter weather event, saying on Thursday that “life-threatening wind chills” will strike the east coast on Friday.

Snow and powerful winds are expected to cause damage and power outages in the Midwest and Canada.

It is warned that more than 100 daily cold temperature records could be tied or broken over the next few days.

In Colorado, temperatures dipped to a record-breaking low of -9F from 42F on Thursday. The city of Cheyenne, Wyoming, set a record for its greatest one-hour temperature drop, after going from 43F to 3F within 30 minutes. Elsewhere in the western state, temperatures have dropped as low as -35F

A winter storm warning is in effect In Chicago, until Saturday, bringing with it several inches of snow and winds topping 80km/h.

In Canada, much of Ontario and parts of Quebec are also bracing for a major winter storm that is expected to last through the Christmas weekend.

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