The NWS in Caribou, Maine, has issued a winter storm warning, to stay in effect until midnight EST on February 13. The affected regions include northeast Aroostook, northwest Aroostook, northern Piscataquis, and northern Somerset Counties.

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.

Winter storm warnings are in place for 10 states from the National Weather Service (NWS) on Thursday, with up to 30 inches of snowfall expected in some parts of the U.S. Freezing temperatures may present health risks, especially for vulnerable groups such as infants and older adults.