UK’s Big Snowfall, As Seen From Space

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This satellite image taken by NASA’s Terra satellite shows the entire island of Great Britain blanketed by heavy snowfall, with some areas seeing the most snow in 50 years. It looks pretty from space, but frigid temperatures followed snowfall, leaving roads and sidewalks treacherously icy, according to news reports. As of January 7, overnight temperatures had plunged to -18 degrees Celsius (-0.4 degrees Fahrenheit) in isolated spots, with more widespread temperatures of -10 degrees Celsius (14 degrees Fahrenheit). The heavy snowfall downed power lines, leaving several thousand homes in southern England without electricity.

North America is also experiencing heavy snows and cold temperatures. NASA’s Earth Observatory website says that a possible contributor to the persistent cold and snow across much of the Northern Hemisphere’s mid-latitudes in December 2009 and January 2010 could be the fact that the atmosphere was in an extreme negative phase of the Arctic Oscillation (AO). The AO is a seesawing strengthening and weakening of semi-permanent areas of low and high atmospheric pressure in the Arctic and the mid-latitudes. One consequence of the oscillation’s negative phase is cold, snowy weather in Eurasia and North America during the winter months. The extreme negative dip of the Arctic Oscillation Index in December 2009 was the lowest monthly value observed for the past six decades.

Source: Earth Observatory

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

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