Massive heat dome hits the East Coast

A massive heat dome is settling over the eastern half of the country, triggering the first major heat wave of the summer, just ahead of the July 4 holiday. While temperatures may peak before July 4 itself, more than 44 million people across the country will still experience triple-digit air temperatures or heat index values as they celebrate America's 250th birthday. FOX Weather Michael Estime joins LiveNOW's Anna Marsick for more details on the major heat dome.