OMAHA, Neb. (AP) — A powerful winter storm system that could leave a dozen inches of snow behind has been forecast for Nebraska and portions of adjacent states.

The National Weather Service has issued a winter storm warning for most of Nebraska, southeast Wyoming, northeast Colorado, northwest Kansas and western Iowa. A blizzard warning has been issued for several counties in west-central Nebraska, starting Friday afternoon.

The service says the storm is expected to move into Nebraska late Thursday night and last into Saturday.