During a multi-day event, if a new, previously unidentified high-risk scenario emerges (e.g., severe weather warning), how must the risk register be managed to maintain its utility as a 'living document'?

During a multi-day event, when a new, previously unidentified high-risk scenario like a severe weather warning emerges, the risk register must be managed dynamically to maintain its utility as a 'living document'. A risk register is a central repository that systematically documents identified risks, their characteristics, and their management plans. Its 'living' nature means it is continuously updated, reviewed, and remains relevant to the evolving situation. Firstly, upon the emergence of a new high-risk scenario, there must be an immediate identification and rapid initial assessment. This involves clearly describing the new risk (e.g., "Impending Severe Thunderstorm with High Winds"), assessing its potential impact on event operations, participant safety, or infrastructure (e.g., "Potential for participant injury, damage to temporary structures, evacuation of outdoor areas"), and estimating its likelihood of occurrence within the event timeline (e.g., "High likelihood within the next hour"). Secondly, this newly identified risk must b....