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Want some proof? How about this?
On January 20-21, 2010, the most powerful low pressure system ever in 140 years of recordkeeping swept through the Southwest, bringing floods, tornadoes, hurricane-force winds, and blizzards.
http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1831
Yeah, whatever; I’m unimpressed. Anything else?