this is one of the nearly 60 roof collapses that happened in the past week. so a far this year eight feet of snow in the boston area. one more foot and it is an all-time record. clearly stressing infrastructure here. rob marciano, abc news, quincy, massachusetts. >> incredible images there. with temperatures plunging in the danger zone, they discovered something disturbing. it's so cold that the road salt is freezing into clumps. crews had to bring in heavy machinery you saw there to break it up before treating the roads. accu-weather's justin povick looks at the latest conditions. good morning, justin. >> reporter: ryan, reena, thanks. good morning to you. improvement on the way throughout the northeast and mid-atlantic after a slippery start early on around our nation's capitol and baltimore after several inches of snow. it looks like our weather will gradually improve throughout the day. cold still. even though the sunshine will return for the afternoon. there will be a couple of inches of snow from new york city north and eastbound toward boston. travel delays continue in to the early evening. ryan and reena, back to you.