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Cold Weather Will Grip Midwest To Appalachians Tonight

9 AM EDT, May 12, 2013

By WeatherBug Meteorologist, Chad Merrill

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Although meteorological summer is less than a month away, the cold chill invading the Great Lakes feels more like the end of March. The well-below average temperatures will swoop into the East tonight, threatening the growing season in the Appalachians.

Temperatures this morning range from 21 degrees in Baudette, Minn., to 33 degrees in Ulysses, Pa. Meanwhile, warmer 50s and lower 60s extend along the Interstate 95 corridor from Boston to Washington, D.C.

A strong Canadian high pressure centered across the Northern Plains today will drop into the Tennessee Valley overnight. A combination of very dry air, clear skies and light winds will allow temperatures to plummet after the sun goes down.

Despite the late sunset and early sunrise in mid-May, lows will drop into the lower 30s for several hours early Monday from the Upper Midwest to the Appalachians.

Widespread Frost Advisories and Freeze Watches and Warnings have been posted from Wisconsin and northern Illinois to eastern New York. Chicago, Milwaukee, Toledo, Ohio, Nashville, Tenn., State College, Pa., and Poughkeepsie, N.Y., are included.

Low temperatures this cold for mid-May will challenge a few record lows Monday. The record low for both Detroit and Milwaukee is 30 degrees while for Chicago its 34 degrees. Farther east, Williamsport, Pa., is forecast to drop to 35 degrees, staying just 5 degrees shy of the record low for May 13 of 30 degrees.

Temperatures will quickly warm Monday across the Midwest and Great Lakes on the heels of southerly winds in the wake of the high pressure. Meanwhile, the cold high pressure will move to the Southeast, providing another chilly night Monday for large stretches of the East Coast.

Much of the Interior Mid-Atlantic and Northeast will see lows dangerously close to the freezing mark again while lower 40s will be common along Interstate 95 from Atlanta to Boston by Tuesday morning.

Have your WeatherBug active to get the latest Frost Advisory, Freeze Watch or Freeze Warning for your neighborhood.

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