As a family member of American military members, I cannot get behind that there are soldiers whom are guarding the Tomb of the Unknowns in this weather. I'm pretty sure that the Unknowns would want their modern-day compatriots to be safe, warm, and alive if they can be.
The Unknowns died for their country and not so that their compatriots would risk hypothermia and thus ending up under their own tombstones. The best way to honor the Unknown Soldiers, then, is to let the soldiers whom guard their term get to a safe and warm place unless they are called to serve with the National Guard, Arlington FD, Arlington PD, and other personnel whom need to be out in the snow.
The Unknowns died for their country and not so that their compatriots would risk hypothermia and thus ending up under their own tombstones. The best way to honor the Unknown Soldiers, then, is to let the soldiers whom guard their term get to a safe and warm place unless they are called to serve with the National Guard, Arlington FD, Arlington PD, and other personnel whom need to be out in the snow.