CNN: What a difference a day makes. Residents in many East Coast cities were digging out beneath blue skies on Sunday after whipping winds and a massive blizzard clobbered the region. But top officials warned that danger lingered even as the storm headed out into the Atlantic Ocean. Washington Mayor Muriel Bowser said that dropping temperatures still pose a risk. "We will see continued slick and dangerous roadways, so continue to stay off the road," she told reporters Sunday evening. Baltimore Mayor...