It won’t get to 20 in DC this Friday. It will warm up a bit by Sunday, but the next cold front should arrive just in time for the Tuesday Global Warming Celebration. Gratitude to Canada for supplying the cold air and to whoever supplied the postitive PNA weather pattern to send it here.
If it’s the Alaskan cold moving in, we should thank Sarah :-)
I think it's actually coming out of Alaska, where it was -67 actual temp this morning.
----Is it an "Alberta Clipper" or a "Sarah Slam"?