The cold weather gripping the south isn’t just uncomfortable, it’s dangerous. In Tennessee, police believe an 81-year-old man with Alzheimer’s Disease froze to death after wandering outside in his bathrobe. In Birmingham, low temperatures in the teens make having a reliable source of heat essential. The city of Birmingham will open a warming center at Boutwell Auditorium this evening, but some people have already been looking for comfort in the area’s homeless shelters. Ruth Crosby is head of First Light, a shelter which houses women and children. She tells WBHM’s Andrew Yeager they have already been stretched thin by the economy.