US facing record low temperatures as polar vortex hits January 29, 2019 at 08:19AMhttps://https://bbc.in/2WsJFqb Freezing winds, caused by a dense pool of cold air, could bring temperatures as low as -46C (-50F).

Freezing winds, caused by a dense pool of cold air, could bring temperatures as low as -46C (-50F).

from BBC News - World https://bbc.in/2MDNzIe