DES MOINES, Iowa (AP) -

A major snow storm traveling through the Midwest is expected to create whiteout conditions in parts of Nebraska and Iowa.

The National Weather Service says snow will begin Wednesday morning in western Nebraska before spreading eastward into Iowa. Parts of southeast Nebraska could get between 4 and 8 inches of snow between the afternoon and night.

The storm will affect most of Iowa, with snowfall expected from Wednesday afternoon to Thursday afternoon. Between 6 and 12 inches of snow is expected in an area stretching from west central to northeast Iowa.

Sustained winds in Iowa are predicted to reach between 25 to 30 mph with gusts reaching up to 45 mph. Sustained winds in Nebraska could reach between 20 and 30 mph with gusts of up to 40 mph.