Welcome back, youre watching Cnn Newsroom with me, michael holmes. A devastating storm is pummelling parts of the united states. Oregon, falling trees toppled power lines, started fires and shut down mass transition. Officials in portland say theres been at least one weather related death in the city. More than 250 daily cold records could be broken through tuesday. Iowa, the epicenter of the blizzard conditions with the caucuses on monday, forecast to be coldest on record. 75 of the country will be experiencing temperatures below freezing fahrenheit the next