Forecasters say a wetter-than-usual winter and a jet stream ripping over the part of the country known as "Tornado Alley" could lead to an active spring.
Rains and warmer weather this week could trigger flooding in portions of the Midwest grain belt, prompting concerns of delays to field work ahead of seeding the corn and soy crops.
Heavy snowfall in parts of Germany triggered a deadly avalanche and caused thousands of accidents, leaving at least seven people dead and dozens more injured, police said Sunday.