Weather tracker: North-west US hit by snow ahead of eastern heatwave

Western states experience unseasonally low temperatures but New York and Washington DC could reach 40C by end of weekUnseasonal snow has fallen in some parts of the US, while other parts of the country brace for a heatwave this week.A strong cold front spread into the western US from the northern Pacific over the weekend, bringing an abrupt change in conditions to a region that had been experiencing high summer temperatures amid drought. Temperatures from the Canadian border to California have w