HARRISBURG, Pa. (AP) — A fast-moving storm expected to drop a foot of snow or more in the Northeast has hit the region.

Road crews are on high alert and airlines are canceling flights.

Utilities are bracing for power outages, airports are preparing for delays and local authorities are warning of slick roads as holiday shoppers head out to stores.

The National Weather Service says 6 to 12 inches of snow is expected in New England, with as much as 14 inches possible along the Maine coast. Areas north and west of New York City and central Pennsylvania could get 8 inches or more. About half a foot is forecast in parts of Ohio, where snow began falling overnight.

Airlines have canceled about 940 flights because of the storm, mostly in the Northeast and Midwest. Almost 350 flights into and out of Newark, N.J., have been canceled, and 172 at Chicago's O'Hare airport have been called off.