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CNN-weather/environment

A powerful winter storm claims at least 22 lives across the US as temperatures plunge, winds howl and power lines fall

By Aya Elamroussi, Jason Hanna and Ray Sanchez, CNN More than 315,000 homes and businesses nationwide were without power Christmas Eve, thanks to an Arctic blast and winter storm that tore down power lines with destructive winds and heavy snow and dipped temperatures dangerously low — conditions killing at least 22 people. As bone-chilling air

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At least 9 dead as massive winter storm leaves more than a million without power and bitter cold across much of US

By Aya Elamroussi, Ray Sanchez and Eric Levenson, CNN A massive winter storm battered the US on Friday with frigid temperatures, high winds and heavy snow, leaving at least nine people dead, knocking out power to over a million customers and wrecking holiday plans from coast to coast. The storm — expected to intensify throughout

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More than half the US population awaits Christmas weekend under wind chill alerts. The snowiest part of a perilous winter storm is yet to come

CNN, KING, WSOC, WCCO, GETTY IMAGES By Jason Hanna, Ray Sanchez and Dave Hennen, CNN Nearly 177 million Americans — or more than half the US population — will await Christmas weekend under wind chill alerts as a major arctic blast plunges temperatures to dangerous levels in much of the country, according to the National

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More than half the US population awaits Christmas weekend under wind chill alerts. The snowiest part of a perilous winter storm is yet to come

By Jason Hanna, Ray Sanchez and Dave Hennen, CNN Nearly 177 million Americans — or more than half the US population — will await Christmas weekend under wind chill alerts as a major arctic blast plunges temperatures to dangerous levels in much of the country, according to the National Weather Service. And the snowiest part

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How earthquakes are measured

By Emily Smith, CNN Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake strikes. Scientists used the Richter Scale for many years but now largely follow the Modified Mercalli Intensity Scale, which the U.S. Geological Survey says is a more accurate measure of size. The Richter

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Polar air and a powerful winter storm put millions under winter alerts this holiday week

By Aya Elamroussi, CNN For millions of Americans across a large swath of the country, the holiday week is beginning with unrelenting below-freezing temperatures made even more miserable by heavy snow expected Tuesday and Wednesday in several central and northwestern states. A developing ‘bomb cyclone’ has prompted alerts from Washington state to Maryland that cover

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Polar air and a powerful winter storm put millions under winter alerts this holiday week

CNN By Aya Elamroussi, CNN For millions of Americans across a large swath of the country, the holiday week is beginning with unrelenting below-freezing temperatures made even more miserable by heavy snow expected Tuesday and Wednesday in several central and northwestern states. A developing ‘bomb cyclone’ has prompted alerts from Washington state to Maryland that

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Get ready for a ‘polar plunge.’ The first week of winter brings snow and bitterly cold temperatures

By Allison Chinchar, CNN Meteorologist Astronomical winter officially begins this Wednesday and Jack Frost will arrive in full force. Temperatures will take a polar plunge this week, and even Florida won’t be spared, thanks to a strong high-pressure system sliding south from Canada. “Very cold Arctic air masses will envelop much of the central and

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