We will describe the support provided by the Developmental Testbed Center (DTC) for the Community Hurricane Weather Research and Forecasting (HWRF). The last release of HWRF (v3.5a) was done in August 2013, and it contains the capabilities of the 2013 operational HWRF model. In addition, support for all Northern Hemisphere basins, including West Pacific and Indian Ocean, is now provided. A capability for idealized simulations is also included. The code is available for download from the DTC website (http://www.dtcenter.org), along with extensive documentation and test datasets.
The HWRF use in the international community has increased extensively in the last two years. HWRF was run experimentally for the West Pacific in 2012 by the NOAA Environmental Modeling Center (EMC), and its results were sent to JTWC, where they were well received. HWRF is also being used in India, Vietnam and Taiwan, among other countries. A HWRF tutorial is being organized jointly by DTC, the NOAA Environmental Modeling Center and Taiwan Typhoon and Flood Research Institute (TTFRI) for May 2014. A total of 42 applications from 12 countries were received for this event, which will lead to further growth of the international HWRF user base.