What happens to smoke when it is observed puffing from a building?

When smoke is observed puffing from a building, it often indicates a dynamic and potentially hazardous situation. Puffing smoke suggests that there are changes in the fire's conditions, which can result in a buildup of combustible gases. If these gases accumulate and reach a certain temperature, a sudden ignition can lead to a backdraft, which is a rapid re-ignition of fire caused by sudden entry of oxygen.

In firefighting, the presence of puffy smoke is a warning sign that should alert firefighters to the possibility of unexpected fire behavior, making them cautious about how they proceed with their attack on the fire. Recognizing this pattern is crucial, as it may indicate that the fire is not under control, but rather intensified. Therefore, observing smoke puffing warrants a strategic and calculated approach to firefighting operations to ensure safety and effectiveness.