P64  Operational 2-km WRF Forecasts at Korea Air Force

Hahm, Sook-Jung, Jae-Ik Song, Jwa-Kyum Kim, Jong-Suk Kim, Republic of Korea Air Force, and Ui-Yong Byun, Jihyeon Jang, Myung-Seo Koo, and Song-You Hong, Yonsei University, South Korea

The objective of this study is to describe the short-range forecast system of the Korea Air Force (KAF). The KAF weather prediction model system, based on the Weather Research and Forecasting (WRF) model (i.e., the KAF- WRF), is configured with a parent domain overs East Asia and two nested domains with the finest horizontal grid size of 2 km. The global model output from the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) had been used to provide the large-scale forcing for the outer domain of the KAF-WRF at an 18-km grid. As of March 2012, the boundary conditions for the KAF-WRF was replaced by the forecasts with the Global/Regional Integrated Model system (GRIMs) at the horizontal grid spacing of approximately 25-km. The evaluation of the KAF-WRF forecasts will be presented with the focus on the influence of the global model forecasts providing the large-scale forcing.