Heavy snow and high winds are causing blizzard conditions in the Upper Midwest. It's the latest stage of a three-day storm that's placed over half the country under winter weather warnings.
Forecasters are calling it the biggest storm in a generation. Residents of more than 20 states are in the path of the storm, which is expected to bring high winds and multiple feet of snow.
The term forecasters are using to describe the overall weather pattern is "anomalous" — for its unusual cold and warmth. In California, it could be the coldest storm in years.
The cities of Sao Sebastiao, Ubatuba, Ilhabela and Bertioga, some of the hardest hit and now under state of calamity, canceled their Carnival festivities as rescue teams struggle to find the missing.
The U.S. military started tracking more airborne objects it calls "low speed clutter" after shooting down the Chinese balloon. The National Weather Service says it launches about 184 balloons a day.