NEW YORK—Snowfall picked up Monday in the Northeast as the region braced for a whopper of a storm that could dump well over a foot of snow in many areas, create blizzard-like conditions and cause travel problems for the next few days. Lara Pagano, a meteorologist with the National Weather Service, said a nor’easter developing off the mid-Atlantic coast will be a “pretty slow mover” as it brings heavy snow and strong winds through Tuesday. “It’s going to be a prolonged event,” Pagano said. “We have snow that had made its way across much of Pennsylvania and into southern portions of New York and into Connecticut and much of New Jersey.” As of Monday morning, some areas had already gotten 3 to 5 inches of snow, with 6 inches in parts of Pennsylvania, she said. In parts of New Jersey, 7 inches already was reported as of Monday morning. New …