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Track forecasts for Hurricane Katrina from a number of models initialized at 00:00 UTC on 26 August 2005 (86 h prior to landfall-left panel) and at 00:00 UTC on 27 August 2005 (62 h prior to landfall-right panel). The location of landfall near the Louisiana-Mississippi border is indicated by the red triangle.

Track forecasts for Hurricane Katrina from a number of models initialized at 00:00 UTC on 26 August 2005 (86 h prior to landfall-left panel) and at 00:00 UTC on 27 August 2005 (62 h prior to landfall-right panel). The location of landfall near the Louisiana-Mississippi border is indicated by the red triangle.

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The Weather Research and Forecasting (WRF) Model has been designed to be an efficient and flexible simulation system for use across a broad range of weather-forecast and idealized-research applications. Of particular interest is the use of WRF in nonhydrostatic applications in which moist-convective processes are treated explicitly, thereby avoidin...

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... WRF forecasts were initialized from the 1/6 degree (approximately 18 km) GFDL analyses, and run with a 12 km grid until the hurricane was within three days of landfall, after which forecasts were initialized and run with the 4 km moving nest. Figure 6 displays track forecasts for WRF along with a number of operational models. The 12 km WRF forecast initialized on 26 August 00:00 UTC (86 h prior to landfall) predicted landfall near Mobile, Al- abama, about 150 km east of the actual location near the Louisiana-Mississippi border. ...

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