Dangerous cold is the big story all weekend as the Twin Cities awoke Saturday to subzero temperatures.

Wind chills peak near minus 20 degrees Saturday afternoon. Frostbite can set in on exposed skin in 25 to 30 minutes in these conditions.

An extreme cold warning is in effect for northwestern Minnesota until noon Saturday for wind chills near minus 40.

A cold weather advisory is in effect for all of Minnesota until 10 a.m. Sunday for wind chills between minus 25 to minus 35.

If temperatures remain below zero all day Saturday, it will be the coldest day in the metro since Feb. 17, the earliest zero-or-lower high since Dec. 12, 2000 and the 15th earliest zero-or-lower high on record.

Clear skies on Saturday night allow temperatures to fall even further for Sunday, with morning wind chil

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