When retreating from an imminent danger scene, what must crews do?

When crews are retreating from an imminent danger scene, it is essential that they advise county communications and the Incident Commander (IC). This action ensures that all relevant parties are informed of the situation, which is crucial for maintaining situational awareness and coordinating an appropriate response. By communicating their status, crews can help prevent misunderstandings and potentially dangerous situations for themselves and others operating in or around the incident.

This communication allows for the reassessment of the situation while ensuring that necessary assistance can be dispatched if needed. Additionally, it helps the IC shift focus or delegate resources effectively, keeping everyone involved informed and safe.

The other options do not prioritize immediate communication with key personnel, which is critical in a rapidly changing situation where danger may still be present. Thus, advising the appropriate channels is a vital step in ensuring safety and operational clarity during a retreat from danger.