Colorado: winter storm – flights cancelled (DEN)

More than 100 flights were canceled at Denver International Airport early on Tuesday as a powerful storm system dropped snow over the Rocky Mountains, while tornadoes were reported from Texas to Nebraska, officials said.

A blizzard warning was issued for a large swath of northeastern Colorado and western Kansas, with a storm system that originated in Alaska forecast to drop up to 12 inches of snow on the Denver metropolitan area by midday Tuesday, according to the National Weather Service.

Several tornadoes were spotted over northern Texas, western Kansas and southern Nebraska overnight, according to weather forecasting site AccuWeather.