Northern California is bracing for another winter storm this week, which is set to bring heavy rain and snow and impact holiday travelers. Here's the timing and totals we're expecting.

A powerful winter storm with heavy snow is headed to areas in the Midwest and Northeast. Meanwhile, the South is preparing for heavy rain and the potential for severe tornadoes. NBC’s Angie Lassman tracks the forecast.

Snow, ice and freezing rain are likely to continue impacting roads and schools until a widespread warmup midday Friday across the Willamette Valley.

Snow, ice and freezing rain are likely to continue impacting roads and schools until a widespread warmup midday Friday across the Willamette Valley, National Weather Service meteorologists said. Temperatures don’t appear likely to rise above freezing in a meaningful way until Friday,

The National Weather Service has issued an ice storm warning for the Willamette Valley through early Friday. Follow our live updates.