Albert Aeuirre, 70, usually camps out near DePaul’s Loop campus. He usually stays inside doorways to protect himself from the wind, but said he hopes to find a spot in a shelter during this week’s colder days. As the frigid winds of the polar vortex sweep into the Midwest, forecasters are predicting wind chills of -50 degrees later this week, a particularly dire problem for the Chicago’s homeless population. Photo by Xavier Ortega for the DePaulia