During the middle of February, a split in the Polar Vortex allowed cold air to plunge southward and warm air to surge northward to the North Pole. The Polar Vortex is a storm high in the atmosphere that helps to keep frigid air locked up in the Arctic. Occasionally, this storm gets distorted, moves southward and can…
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Extraordinary warmth envelops Arctic as Polar Vortex dislodges cold air to US, Europe
