Winter storms warnings are reported by your local weatherman. They can be predicted with a reasonable amount of accuracy. Winter storms can bring lots of snow, sleet, freezing rain, sub zero temperatures, lots of ice, and even blizzards.
Winter storm:
Heavy snow and ice are very possible over the next couple of days.
Winter Storm Warning:
Severe winter weather has come to the area - Heavy snow and/or ice will begin soon.
Blizzard:
Strong winds over 35mph along with snow that reduces the visibility.
Sleet:
Rain that falls and turns into ice before it hits the ground.
Freezing Rain:
Rain that falls and turns to ice once it hits the surface.