Weather tracker: Europe braces for swing from Arctic chill to extreme heat

Temperatures in France and England could rise by 15C, while hot air could to give way to snow in parts of US

After a prolonged spell of cool conditions across much of Europe, a dramatic swing in temperatures is expected in the coming days as warmer air surges north into western and central parts of the continent.

A large blocking high over the North Atlantic and slow-moving low pressure across southern Scandinavia dragged Arctic air southwards last week, sending temperatures 10-15C below the seasonal average for more than a week.