More than 100 million Americans are under heat alerts on blazing Fourth of July
Millions of Americans will be under heat warnings as Fourth of July celebrations kick off.
Heading into the holiday weekend, 110 million people across 21 US states will be under heat advisories, with temperatures in some western states expected to reach as high as 116 degrees.
The in San Francisco said Tuesday the could last from six to 12 days in the Bay Area, making it the longest stretch of
