it is friday, january 28th. i'm john berman with brianna keilar. developing this morning, there is a bomb coming, a weather bomb, a snow bomb, a bomb cyclone. more than 75 million people in the eastern united states are under winter weather alerts from kentucky to north carolina, to maine. 4 million people are under blizzard warnings. we're talking the potential for huge snowfall, multiple feet of snow, as in two feet or higher in places like boston. winds of 60 miles per hour. places that might get off easy could see a foot of snow, like new york city. this could be a huge deal. what makes it more problematic, is it is uniquely difficult to predict. >> there it will create hurricane-force winds. that will create reduced visibility and power outages. 1,600 u.s. flights have been