Extreme cold warnings, Minnesota record lows below -40F

Brutal cold has invaded the upper-Midwest.  A record low at International Falls is not an easy thing to break.  No problem today (01/21/11), as temps have fallen into the minus 40s F (or C, if you prefer).  The cold air pushes eastward and reinforces during the next several days over New England.  This is due to winter.

See more at wattsupwiththat.com