A powerful Arctic storm is sweeping across
a large swathe of the US and Canada
The alerts stretch from coast to coast
and reach as far south as the
US-Mexico border and Florida
More than 135 million people are under
weekend weather alerts ahead of the
busiest travel days of the year
Major airports have cancelled
thousands of flights as the storm intensifies
Plunging temperatures of -50F (-45C)
and -70F are possible in some parts of the
country, forecasters warn
Experts warn this could lead to frostbite
within five to 10 minutes]
https://www.bbc.co.uk/news/live/worl...anada-64075457