Wind predictions of ex-Tropical Cyclone Cook making a direct hit on Auckland CBD

Abstract

Ex-Tropical Cyclones are a serious threat to New Zealand, and have been studied by scientists over many years using Numerical Weather Prediction modelling, and more recently some computational fluid dynamics investigations have also been carried out. This paper presents work carried out to develop a framework which couples numerical weather prediction data with computational fluid dynamics modelling to create a high resolution method of investigating the impact of strong winds from an ex-Tropical Cyclone, a serious wind hazard for the northern regions of New Zealand.