What small fire signal did interior crews notice that was overlooked initially?

The small fire signal that interior crews noticed, which may have been overlooked initially, was small fires coming up through breaches in the floor. This detail is significant because it indicates that there are pockets of fire emerging from areas that might not be immediately visible or accessible, such as through openings in the structure's flooring. These breaches can represent a serious hazard as they may allow fire to spread more quickly, increasing the overall risk to firefighters and occupants within the building.

Recognizing these small fires is crucial as they can develop into larger conflagrations if not addressed promptly. Interior crews are trained to identify and respond to various indicators of fire behavior, and small, localized fires can provide vital clues about the overall fire conditions. In challenging situations, smaller signals can be easily dismissed, contributing to a false sense of security regarding safety and fire containment.

Understanding the implications of such signals helps in better assessing the fire situation and making informed decisions to enhance safety and effectiveness during fire response operations.