As New Jersey prepares for a second round of snow and freezing temperatures to arrive Friday, Gov.Phil Murphy asked residents not to underestimate the winter weather and to stay off the roads. “It may get worse toward the end, as opposed to the beginning,” Murphy said Thursday evening during a press conference in Newark. Murphy, whoissued a state of emergency last week before the major rainstorm that flooded parts of the Garden State, said parts of New Jersey could see flurries as soon as Thursday evening but the primary concern is snowfall expected to begin early Friday. “By early tomorrow mo…