Biting cold that set records in Canadian Arctic poised to invade eastern U.S. this weekend
[FONT="]In recent days, some of the coldest March air in decades has gripped portions of Alaska and the Canadian Arctic. Fragments of that frigid air will come crashing into the eastern United States on Friday and into the weekend.[/FONT]
[FONT="]The air spilling into the Great Lakes, Northeast and Mid-Atlantic may not fall to record levels, but it could bring the coldest weather to parts of the region since January.[/FONT]
[FONT="]Its pedigree is impressive.[/FONT]
[FONT="]On Saturday, Mould Bay in the Canadian Arctic set an all-time record low of minus-66.5 degrees (minus-54.7 Celsius).[/FONT]
[FONT="][chart][/FONT]
[FONT="]Then on Monday, Fairbanks, Alaska, saw its temperature plummet to minus-38, the coldest temperature this late in the season since 1964, according to climatologist Brian Brettschneider.[/FONT]
[FONT="]Meteorologist Ryan Maue tweeted that temperatures in the Canadian Arctic’s lower atmosphere challenged the coldest levels observed in March since at least 1958.[/FONT]
[FONT="][chart][/FONT]
[FONT="]The extreme cold was because of the unusual strength of the polar vortex swirling over the region.[/FONT]
[FONT="]Tentacles of that vortex will dislodge and slap the Great Lakes, Northeast and Mid-Atlantic with a stinging round of March cold between Friday and the weekend.[/FONT]
[FONT="]...[/FONT]