![]() ![]() It was designed for capturing tropical cyclone inner core processes, including interactions with the large-scale processes which have been proven to be critical for improving track, intensity, rainfall and size predictions. ![]() The HWRF model is a storm-following, double-nested, high-resolution, grid modeling system designed to operate at a horizontal resolution of 2 km or less. These achievements provide hurricane forecasters not only with improved forecast guidance, but also with critical information on the evolution of the three dimensional wind structure within the storm. Using cutting-edge numerical modeling and verification techniques, our research has helped accelerate the advancement of the model’s development and has played a key role in the success of the Hurricane Forecast Improvement Project. These developments formed the backbone of the operational HWRF and resulted in continuous improvements to its track, intensity and structure predictions in the following years. The experimental HWRF incorporated a movable multilevel nesting algorithm with planetary boundary layer and surface physics, carefully calibrated by in situ observations obtained from the hurricane inner-core region. ![]() From 2008-2011, scientists at AOML developed an experimental HWRF to target the intensity change problem. HWRF was transitioned to operations at NOAA’s National Centers for Environmental Prediction in 2007. ![]()
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