Officials are warning residents in the Twin Tiers to prepare for the possibility of over a foot of snow from a storm set to blow through the area.

The National Weather Service has issued a Winter Storm Warning for the entire region from 8 p.m. March 13 to 8 p.m. on Wednesday, March 15 with storm totals projected of 10 to 15 inches by Wednesday with localized amounts of up to 18 inches and the potential for blowing and drifting.

NOAA says people should plan on staying off the roads during the storm. But, if they have to go out, motorists should keep an extra flashlight, food and water in the vehicle.

New York Governor Andrew Cuomo already has ordered the activation of the state’s emergency operations centers with stockpiles of sandbags, generators and other supplies.

The Pennsylvania Department of Transportation also has warned motorists to be prepared for difficult travel and to make plans.  PennDOT often reduces speed limits on roads in the wake of severe weather conditions.