An Arctic blast poised to plunge into the Northeast on Valentine’s Day weekend will bring subzero cold to parts of the Midwest and flirt with some daily records, says weather.com.
A nosediving polar jet stream will send cold into the eastern half of the country beginning on Friday, with temperatures plunging to 10-20 degrees below normal.
Temperatures will drop below zero Fahrenheit on one or more nights from the central Appalachians to much of New England.
On Friday, highs will struggle to get much above zero in the typically coldest spots of North Dakota, Minnesota, Wisconsin and the U.P. of Michigan.
Subzero lows are expected as far south as parts of the southern and eastern Great Lakes on Saturday, as well as parts of the Corn Belt. Lows in the teens and 20s below zero can be expected in the Upper Mississippi Valley.
On Saturday, some parts of Upstate New York may struggle to rise above zero, with some daily record-cold highs set in the Great Lakes and Appalachians.
Temperatures at Boston’s Logan Airport could dip below 0 degrees on Sunday morning, where subzero cold is quite rare.
Pittsburgh could also slide below zero Sunday morning, something that happened nine times last winter, but on average happens only twice each year.
Lows in the single digits are in store from parts of Virginia, New York City, Philadelphia, Baltimore and Washington, D.C., metro areas.
Temperatures will dip into the teens as far south as parts of the Carolinas and northern Georgia.
At this time, it appears freezing temperatures will avoid the fruit and vegetable growing areas of central Florida during the weekend.
https://weather.com/storms/winter/news/cold-outbreak-valentines-northeast-midwest-south-feb2016
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