Associated Press: The jet stream - the river of air high above Earth that generally dictates the weather - usually rushes rapidly from west to east in a mostly straight direction.
But lately it seems to be wobbling and weaving like a drunken driver, wreaking havoc as it goes.
The more the jet stream undulates north and south, the more changeable and extreme the weather.
The most recent example occurred in mid-June when some towns in Alaska hit record highs. McGrath, Alaska, recorded an all-time high of 94......
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Scientists say jet stream causing weather whiplash as it wobbles
Posted by Washington Post: Juliet Eilperin on July 21st, 2013
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