. >> reporter: in kelowna, marvin brown is salvaging what he can of the home that's been in his family for more than 100 years it made it through hurricanes. >> yeah, but one tornado unexpectedly >> reporter: do you rebuild? >> yes, yes, i guess we have to. >> reporter: since monday, more than 50 tornados have been reported across the south. the outbreak scientists say is driven in part by increasingly warmer temperatures. the same massive storm system bringing blizzard conditions to parts of the northern plains, the dakotas, nebraska and wyo wyoming pummeled with ice and snow >> you have to be ready to handle the worst case scenario >> reporter: much of the northeast bracing for its bout with the deadly december storm system morgan chesky, kelowna, louisiana. >> as the storm churns east, millions are still in its past angie lassman is here with what we need to know. >> we round out the workweek still dealing with the storm system that as we started the week was on the west coast now it's tracked across entire united states and impacting folks in the northeast with rain and snow you ca

. >> reporter: in colona marvin brown is salvaging what he can of the home that's been in his family for more than 100 years. it made it through hurricanes but -- >> one tornado, yeah, unexpectedly. >> do you rebuild? >> yes, yes, i guess we have to. >> reporter: since sunday more than 50 tornadoes have been reported across the south, the outbreak scientists say is driven in part by increasingly warmer temperatures. the same storm system bringing blizzard conditions to parts of the northern plains. the dakotas, nebraska and wyoming pummeled with wind and snow as rain, ice and snow bring dangerous conditions to the mid-atlantic. >> you have to be ready to handle the worst case scenarios. >> reporter: much of the northeast now bracing for its bout with this deadly december storm system. morgan chesky, nbc news, colona, louisiana. >>> right to dylan dreyer tracking the storm. areas that usually get a lot of snow will get a whole lot of snow this round. >> that's good news for the ski resorts across new england but we are still dealing with the snow falling across the interior northeast