1. A system for predicting turbine rub comprising: a monitoring system configured to form operational values for a turbine based on information received from the turbine; a correlation engine configured to form at least one correlated value from the operating values that correlates a first operating value to a second operating value; a variable deriver configured to form at least one derived variable from a one of the operating values; and a rub predictor that forms a rub prediction based on the at least one correlated value and the at least one derived value.