FHICS – Successful forecast of Hurricane Ian impacts

Hurricane Ian was the first 2022 hurricane to make landfall in the continental USA with strong Cat 5 winds and large amounts of rain. The team of Deltares USA, Deltares Netherlands, USGS and NRL successfully applied the COSMOS modelling system to forecast hurricane Ian’s flood and morphological impact.

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FHICS - Forecasting Hurricane Impacts on CoastS model system v1.0 ready

In the framework of the NOPP project “Hurricane Coastal Impacts” Deltares USA, Deltares Netherlands, USGS, NRL-SSC and IHE Delft are developing a forecasting system that can compute hurricane impacts of flooding, erosion and structural damage along the US Gulf of Mexico coast and the Eastern Seaboard. 

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COSMOS modelling system and visualization training

On July 5th, the Deltares modelling team was trained in the use of the COSMOS modelling system and visualization tool. The modelling system consists of large-scale surge (using SFINCS) and wave (using HurryWave) models for the Northern Atlantic and Gulf of Mexico which will be forced with COAMPS and/or GFS meteo. These large-scale models in turn drive SFINCS overland flood models and XBeach morphodynamic models. At the moment, 11 SFINCS models are implemented along the entire Gulf of Mexico coast and the South East Atlantic Coast. 100s of XBeach models are implemented along the sandy coastlines of the Gulf as well. In the training Roel de Goede instructed the other members on the workflow of running a hurricane event. Pictured are (from left to right: Ap van Dongeren, Roel de Goede, Panos Athanasiou, Maarten van Ormondt and Ellen Quataert. (Not pictured: Floor Roelvink and Kees Nederhoff). A screenshot of the NOPP event viewer shows the current (non-hurricane) wave conditions in the Northern Atlantic as computed using our new and fast HurryWave model.

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