22 January 2016, the coldest day ever!
Temperature records broken across the country by the ‘Siberian Express’ cold snap as Manhattan hits 1F. (Dailymail)
Did hot Europe (Fig1) contributed to another record cold in U.S. Eastern States? Europe did it last year in February 2015 (see NOAA image, Fig. 2), as the winter was very mild. Western Europe is under the influence of the weather system from West to East. Atlantic low pressure areas move east, unless cold continental high pressure air blocks them. These are the winters that Europe talks about. This succeeds very well when the North Sea and Baltic do not assist the Atlantic weather because they cannot release enough heat or are hindered by sea icing. During last winter 2014/15 they served as perfect helpers and keep the cold from Siberia at a safe distance. Here the air mass known as the Siberian Express traces a line all the way back to the Russian territory, crossing over the North Pole on its way to Canada and into the U.S. (Fig.2)
The more the Atlantic weather governs the situation beyond the Ural the further Polar and Siberian cold will be pushed eastwards. This was felt in Alaska, Canada and Eastern U.S. in February 2015. Many days were extremely cold with deviations from the mean of 20°C and beyond.
And it happened again a week ago on January 22, 2016 Europe helped to put the “Siberian Express” in motion:
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In New York City, the temperature was 1F Friday morning, beating the record low from 1950, and snow is expected in the city over the weekend
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Cold weather expected to last through Friday, with sub-zero temperatures forecast in parts of Northeast
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On Thursday Embarrass, Minnesota reported a temperature of -41F – without the wind-chill factor
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Some place, such as
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The temperature in Boston is below freezing, as the city is set to break the record of 16 days below 32F set in 1961
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In Florida, strawberry and orange crops have frozen over because of the harsh winter weather
The weather phenomenon dubbed the Siberian Express caused record-breaking low temperatures in almost every single area in the central and eastern US on Friday, with all major cities reporting record lows for this date and many reporting record lows for the month of February.
[Credit: Monday, Jan 25th 2016 http://www.dailymail.co.uk/news/article-2961118/Siberian-Express-arctic-blast-kills-seven-record-low-temperatures-Eastern-U-S.html ]
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