I gotta agree with @kel that if you're in a badly impacted storm area you need to STAY OFF THE ROADS.

When I lived in FBX I knew people who had to have body parts amputated from frostbite. People died. Once, an entire family.

I wore snow pants, bunny boots/mukluks, heavy fur parka with a ruff, lambskin mittens, muffler, knit hat under the parka hood, loose clothing in layers underneath. NEVER SWEAT! Sweat freezes.

If you're not an emergency responder STAY HOME.