The condition of the polar vortex influences everyday weather around the globe. Scientist issue warning about concerning ...

A winter storm warning is issued for a significant winter weather event including snow, ice, sleet or blowing snow or a combination of these hazards.

Winter storm warnings are in place in six states across the U.S., with up to 20 inches of snow forecast in some areas. Why It Matters. Challenging driving conditions may affect travel as many ...

Winter Storm Warnings are issued for a significant winter weather event including snow, ice, sleet or blowing snow or a combination of these hazards. Travel will become difficult or impossible in ...

The National Weather Service has fine-tuned their initial winter storm watch area issued yesterday. Most of the winter storm watch area has now become either a winter storm warning or a winter ...

Winter storm watches become warnings when there will be 5 inches or more of snow in a single event. The NWS has "much more high confidence than we've had in a while" about heavy snowfall Sunday, ...

One will form on the Gulf side, the other on the Eastern Pacific side. Heavy rain is the main threat in Mexico. Here's the ...

A winter storm warning is the most severe and means meteorologists are confident a winter storm will produce heavy snow, sleet or freezing rain that poses a significant risk to people's lives.