As dangerously cold Arctic air and gusty winds track eastward behind the storm, wind chill temperatures could dip below -30 degrees F (-34.4 degrees C) across the Midwest, Great Lakes, and New England over the weekend. Farther south, meteorologists expect temperatures to plummet below freezing with wind chills in the single digits.

Thundersnow – a thunderstorm that produces snow instead of rain – is sometimes reported during winter storms in the U.S. Is it forecasted for Delaware?

An area of low pressure lifted north northeastward over the upper Mississippi Valley. This system ushered a mixture of rain and snow across the northern Plains and the Upper Midwest. Winter storm warnings were issued for eastern North Dakota, northwest ...

Another powerful storm is now sweeping across California, bringing heavy rain and high winds to the Bay Area in the early hours of Christmas Day. A flash flood warning is in effect in San Francisco. More resources: Latest updates: The National Weather ...

Winter storms and extreme cold are forecast to wallop the U.S. with snow and ice through the weekend. Prepare for power outages and transportation issues.