york getting strong winds. this is topline, north end of the front pulling through, it won t be until late tonight until we re out of the woods in boston and rhode island. this is a serious storm system, already historic. december is not known for severe weather but this is going down in the history books likely the most deadly and perhaps most damaging tornado outbreak we ve ever seen in december. a lot to come on this but state heads up, if you get warnings tonight, take action. griff: quickly, amy, the amount of time the tornadoes may have spent on the ground part of the historic content. when you think about a tornado, it could be a rope tornado lasting no more than a minute or two on the ground. we have large wedge tornadoes likely what they saw, meaning a large path on the ground for a very long period of time. when using the damage, you can see it was a very large tornado and on the ground over several