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.

A major winter storm is set to spread heavy snow and damaging ice across a large portion of the United States over the coming days. Dangerously cold temperatures will only worsen the storm and increase its danger.

Much of Ohio could see temperatures reach the 90s this weekend. Skies should remain clear across the state for the first summer weekend. It finally feels like June in Ohio after many rainy days, and this weekend we can expect to begin seeing hot ...

Track the major winter storm that will stretch over 2,000 miles and impact 30 plus states throughout the nation. Stay with FOX Weather for live radar and 24/7 updated weather maps on the latest conditions,

A severe winter storm is expected to bring a glaze of ice, dangerously cold temperatures, and potentially a foot of snow to Oklahoma starting Friday.