Snow slows traffic on I-80 in California.
Areas in the Midwest and Northern Plains that saw record flooding just weeks ago will likely see more.
A powerful "bomb cyclone" is whipping the Rockies and Plains for the second time in four weeks, dropping snow that is making travel miserable from Colorado to Minnesota and beyond, delivering a temperature shock to a region that had been enjoying more springlike conditions.
Stranded for hours on a snowy tarmac, passengers on an Air Canada flight were beginning to feel the stress, but their pilot knew the answer: 23 pizzas delivered to the airplane's door.
A storm dumped several inches of snow across the Northeast overnight Sunday into Monday, closing schools in New York City and Boston and leaving a slushy mess for the morning commute.
The snow, sleet and freezing rain falling across the Northeast is just a preview of a more potent winter weather event expected Sunday.
Severe weather is expected to stretch from coast to coast on Tuesday, with about 75 million people under some sort of winter alert.
This has already been the snowiest February in Seattle in 70 years, and there's more of the white stuff to come, according to the National Weather Service.
Washington Gov. Jay Inslee declared a state of emergency Friday as the Pacific Northwest braces for a pounding snowfall, whipping winds and frigid air.
More than a foot of snow fell in parts of Wisconsin this week -- and multiple roofs caved in amid the massive snowstorm.
More than 1,500 US flights have been canceled Friday as a winter storm slammed the Midwest with at least 1 inch of snow per hour.
Thousands of flights across the United States have been scrapped or delayed as a winter storm sweeps across the East Coast.
Storm Caroline caused widespread disruption, with road and air travel severely affected.
The National Weather Service has issued winter storm watches and advisories for areas in southern Wisconsin until Thursday night.
Although school districts across Wisconsin canceled classes Wednesday as the National Weather Service posted a winter storm warning for much of the state, the Madison Metropolitan School District remained open.
A major winter storm has dumped nearly 20 inches of snow in the Madison area.
The University of Wisconsin-Madison will be open only for essential operations Thursday as a winter storm bears down on southern Wisconsin.
The storm that's forecast to hit Wisconsin late Wednesday or early Thursday is already making its way through the Rocky Mountains, dumping more than a foot of snow.
A snow-free December has helped Madison's budget after major storms earlier this year had city leaders concerned.
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