This index, from NOAA's National Weather Service, attempts to scale the impacts from winter weather, taking into account factors such as snowfall, accumulated snow on rooftops, ice accumulation, the potential for a flash freeze, and blowing snow. Not all factors are in play in a given winter storm.

Ohio will see snow, strong winds and sub-zero temperatures this weekend due to winter storm Fern. What we know and how much snow Ohio might get

A winter storm will bring freezing temperatures and the potential for icy conditions to Houston this weekend. Here's the latest on the timing of the storm, the impacts and just how cold it could get.

Though Austin and San Antonio have both been under a winter storm warning, the National Weather Service (NWS) added another warning to the list for select towns and counties: an ice storm warning. The NWS issued the alert just before 12:30 p.

Officials are optimistic the power grid will hold, but freezing rain and arctic cold could cause localized electricity outages in the coming days.