The CFSv2 model became operational at NCEP, as successor of CFSv1, in March 2011. The atmospheric component has T128L64 atmospheric resolution and the ocean component is a MOM4 model at 0.25 meridional equatorial resolution. Hindcasts out to 9 months are available for 1982-2010. The ocean-atmosphere coupling (more frequent than in v1) is now truly global, and an interactive sea-ice model has been added. Initial states for the integration are provided by a coupled Reanalysis at T382L64 resolution (Saha et al 2010). CFSv2 has, as much as practically possible, consistency between the forecast model and the initial states. Further details of the model components, the initial states and some forecast results will be in Saha et al(2012).

Saha, Suranjana, and Coauthors, 2010: The NCEP Climate Forecast System Reanalysis. /Bull. Amer. Meteor. Soc./, *91*, 1015-1057. doi: http://dx.doi.org/10.1175/2010BAMS3001.1

Suranjana Saha, Shrinivas Moorthi, Xingren Wu, Jiande Wang, Sudhir Nadiga, Patrick Tripp, Hua-Lu Pan, David Behringer, Yu-Tai Hou, Hui-ya Chuang, Mark Iredell, Michael Ek, Jesse Meng, Rongqian Yang, Huug van den Dool, Qin Zhang, Wanqiu Wang, Mingyue Chen, 2012 : The NCEP Climate Forecast System Version 2. (To be submitted to the Journal of Climate.)