i'm fredricka whitfield. a look at our top stories in the "cnn newsroom." brutal winter weather this spring. a major snowstorm is hammering the midwest right now. we'll show you which states are getting hit the hardest and where the system is heading next. people in 13 states will start seeing tv ads aimed at gun violence starting tuesday. billionaire new york mayor miami bloomberg is paying for the campaign himself through his anti-gun violence group. we're a nation riveted by the ncaa tournament but beware -- watching all that streaming video can overload your company's internet. first up -- that huge snowstorm that's hammering the midwest on this first week of spring. snow is falling from missouri to ohio. wind gusts over 30 miles an hour are blowing allhat snow around making visibility on the roads extremely difficult. it is the same storm that slammed into the rockies creating white-out conditions and forcing shutdowns on two interstates in colorado.