The following is provided by the International Association of Fire Fighters Training Division. The topic is "Response to a Hazardous Materials Incident: Dumpster Fires in Residential Areas."
The following video is a fire in a Mixed Occupancy Balloon Frame 5 Story Building, just after midnight, in St. Johnsbury, Vermont, almost 30 people in the building in apartments on the upper floors - did not want to evacuate. Initial conditions were nothing visible on the outside and light smoke on Division 2 - things went downhill rapidly a few minutes into the call around 0115 hours when conditions went from minor to major with smoke boiling from the upper floors. The Firefighters evacuated shortly after and the 2nd floor collapsed. In the end, the fire was seven alarms and 3 civilians lost their lives. Watching this, you're about a block away and the firefighters are at an 45° angle to the A-side of the structure.
