You might want to have two separate alerts for this problem, one labelled WARNING and the other CRITICAL, such as 60 percent CPU usage as a warning and 85 perce

You might want to have two separate alerts for this problem, one labelled WARNING and the other CRITICAL, such as 60 percent CPU usage as a warning and 85 percent CPU usage as a critical situation. You can have two separate SNS Topics for warning and critical alerts. Warning alerts can be thrown to a slack channel and Critical alerts can be configured to invoke the Pager.