Panera's new sandwiches may feature different toppings, but the Green Goddess Caprese Melt, Pepperoni Mozzarella Melt, and Smoky Buffalo Chicken Melt will all be served on warm, toasted baguettes. While each sandwich will be available to purchase by mid-January, some customers will be able to enjoy a meal from the restaurant free of charge — weather permitting.

The chain will offer free sandwiches in select cities hit by winter weather, so if you're interested, keep an eye on their Facebook and Twitter accounts. In New York City, Boston, Chicago, Denver, and Washington D.C., Panera will broadcast a code for a free baguette sandwich on nearby digital billboards if temperatures dip below freezing.

The promotion runs from January 17 to 22, but MyPanera rewards program members can get an early sneak peek at the new menu items by ordering online or in the Panera app. For everyone else, the sandwiches will be available to purchase starting at $9.99, beginning January 12.