A powerful front will slice across the eastern U.S. Saturday, leaving behind the coldest air since mid-February last winter.
A frigid pool of air, with temperatures as cold as 55 below zero, has formed in northwest Canada and Alaska.
— Howard Bernstein (@hbwx) November 20, 2013
It will scoot into north central Canada and then plunge southeast Friday through Sunday.
On Sunday, temperatures are likely to hold in the 30s for much of the day in the D.C. area. And that’s not taking into account the very stiff wind – which will make it feel like the 20s or even the teens. The National Weather Service says 50 mph wind gusts are possible Sunday morning, and they may not let up substantially until late Sunday night or early Monday morning.
For reference, Sunday afternoon’s temperature are likely to be about 20 to 30 degrees below average.
On Monday morning, the European model simulates lows from about 20 to 25 with teens in the mountains, with even lower wind chills.
Temperatures may moderate a bit Tuesday into the middle of next week, but then a bit of storminess may approach the region. We’ll have more on that tomorrow.