Mandatory evacuations have been ordered in the Bell Canyon area of Los Angeles following a pop-up brush fire. NBC News' Jacob Soboroff reports on residents' responses and how dry vegetation combined with hurricane-force winds have created the dangerous conditions they now face.

Many watched their homes burn on television in a state of shock. Since the flames erupted in and around Los Angeles, scores of residents have returned to their still smoldering neighborhoods even as the threat of new fires persisted and the nation’s second-largest city remained unsettled.