Supplementary Material to "how Well Do Models Represent the Development of Extra-Tropical Cyclones? Evaluation of Two General Circulation Models Against NAWDEX IOP 6 Observations"

General comments: In this study, the authors evaluate the performance of two climate models simulating the evolution of one North Atlantic extra-tropical cyclone (so called Stalactite Cyclone). The authors compare the models with two horizontal resolutions against ECMWF operative analyses. Quasi-geostrophic omega equation is applied to distinguish the dynamic and thermodynamic (diabatic) processes within the cyclone.