1. A method comprising: monitoring, by an event-monitoring system comprising computer hardware, a plurality of information handling systems; receiving an anomalous event with respect to at least one information handling system of the plurality of information handling systems; analyzing, by the event-monitoring system via a correlation handler, the anomalous event for root cause before passing the anomalous event to an event handler for alert issuance, the analyzing comprising: determining based, at least in part, on a data-collection schedule, that at least one data refresh is needed with respect to one or more monitored information handling systems within a correlation scope of the at least one information handling system; delaying anomalous-event correlation relating to the anomalous event so that the at least one data refresh can be executed; receiving at least one additional anomalous event responsive to the at least one data refresh; performing, via at least one correlation handler on the event-monitoring system, at least one correlation algorithm on the anomalous event; responsive to the performing, determining whether a common root cause for the anomalous event and the at least one additional anomalous event has been identified; responsive to a determination that a common root cause has been identified, creating, by the event-monitoring system via the correlation handler, at least one composite event; wherein the at least one composite event comprises a plurality of anomalous events deemed to have a common root cause, the plurality of anomalous events comprising the anomalous event and the at least one additional anomalous event; sending the at least one composite event to an event handler; and issuing, by the event-monitoring system via the event handler, an alert for the at least one composite event, thereby facilitating message-storm prevention relating to the plurality of anomalous events.