Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 7 7th Plinius Conference on Mediterranean Storms (2005) 2006 10.5194/adgeo-7-25-2006 http://www.adv-geosci.net/7/25/2006/ http://www.adv-geosci.net/7/25/2006/adgeo-7-25-2006.html http://www.adv-geosci.net/7/25/2006/adgeo-7-25-2006.pdf 25 29 2006-01-23 Advances in the WRF model for convection-resolving forecasting J. B. Klemp National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado, USA 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 avoiding the ambiguities of cumulus parameterization. To evaluate the capabilities of WRF for convection-resolving applications, real-time forecasting experiments have been conducted with 4 km horizontal mesh spacing for both convective systems in the central U.S. and for hurricanes approaching landfall in the southeastern U.S. These forecasts demonstrate a good potential for improving the forecast accuracy of the timing and location of these systems, as well as providing more detailed information on their structure and evolution that is not available in current coarser resolution operational forecast models.