Final answer:
Emergency responders, city officials, weather forecasters, and local residents would present information during the Operational Period Briefing.
Step-by-step explanation:
The information during the Operational Period Briefing would be presented by Emergency responders, City officials, Weather forecasters, and possibly Local residents. Emergency responders such as firefighters, police officers, and paramedics would provide updates on the situation and their response efforts. City officials would give information on evacuation plans and emergency services. Weather forecasters would provide updates on the weather conditions that may affect the ongoing situation. Local residents may also provide firsthand accounts and observations of the event.