What notice is issued by a system operator for an expected tropical disturbance landfall within 24 hours?

The notice issued by a system operator for an expected tropical disturbance landfall within 24 hours is the Blue Alert. This alert is specifically designed to communicate imminent threats posed by tropical disturbances, allowing for timely preparations and responses to mitigate potential impacts.

In emergency management, alerts are categorized by color to convey the urgency and severity of a situation. A Blue Alert typically indicates that immediate attention is required due to an anticipated weather event that could lead to significant disruptions or hazards. It calls on relevant authorities and the public to be prepared for the expected conditions, including taking necessary safety precautions.

Understanding these alerts is crucial for effectively managing responses to severe weather events, as they provide clear communication of risks and help coordinate readiness among various agencies and communities.