NWP output from both the National Center of Environmental Prediction’s (NCEPs) operational job stream and several non-American NWP weather sources. The NBM ingests and bias corrects a host of weather elements and determines the optimum weights to be assigned to each model when generating a final blended forecast. Simply put, the NBM takes whatever models are available from 31 different model systems (for rainfall forecasts a total of 171 inputs) and combines the information into a single forecast. Intense research into model performance over time has given today’s meteorologists a baseline of known model biases. Verification of the NBM output has shown that this methodology consistently outperforms individual model runs over time leading to a more accurate and consistent dataset of available