The abstract submission deadline for the "International Conferences on Subseasonal to Decadal Prediction" has been extended to Tuesday, 27 March 2018. The week-long event comprises both the "Second International Conference on Subseasonal to Seasonal Prediction (S2S)", the "Second International Conference on Seasonal to Decadal Prediction (S2D)" as well as a joint segment addressing mutual and emerging topics. The meeting will be held Sept. 17-21 in Boulder, CO, USA. It is being organized by activities within and close to the WCRP community, including the DCPP, GC-NTCP, WGSIP, S2S, and CLIVAR's DCVP panel. For full details, see the conference home page.