The wind will take the body heat out of a person and leave them unable to realize they need to get indoors out of the freeze. Just, stay home. There is no reason good enough to be out in this weather, even to walk to the end of the driveway. The heat in the house has to be high enough to fight off the wind driven cold that robs a house of it's heat.
Buffalo is used to bad weather. They receive feet of snow in a storm all the time, but, this time it is below freezing with high wind. Sometimes being tough is not the best way to think about adverse weather. Sometimes people just need to surrender to the wind and cold and settle in with some warm, mulled apple cider.
When temperatures are 17 degrees Fahrenheit or 20 degrees Fahrenheit that is still 12 to 15 degrees below freezing. With air that cold wind will rob anyone of their body heat regardless of wearing very good ski suits. There is just sometimes when saying no to being strong enough to survive is the best path. Save it for the sunshine and sunglasses to fight the reflection off the brilliant white snow.