Dear HPC users of LRZ, The Czech-Bavarian Competence Team for Supercomputing Applications invites all interested researchers to a workshop on large-scale simulation of water-related hazard scenarios. Contributed presentations are welcome (for Jun 30) on all related topics, such as simulation of rain-induced floods, storm surges, tsunamis, and similar events. Of special interest to our workshop will be presentations addressing demands and desired features of (future) simulation software, parallelisation for current and novel HPC platforms, as well as establishing scalable simulation workflows on supercomputing environments. To register for participation in the workshop, please refer to https://www.lrz.de/services/compute/courses/2016-06-29_hwrh1s16/ There is no registration fee for participation. If you wish to give a presentation, please submit a title and short abstract (10-20 lines) via email to Michael Bader <bader@in.tum.de>. The workshop is collocated with the PRACE PATC Course (Jun 27-29, separate registration necessary) on Intel MIC Programming, at LRZ, see: https://www.lrz.de/services/compute/courses/2016-06-27_hphi1s16/ In particular, the two events will share a series of invited talks on Jun 29. Michael Bader, Technische Universität München Arndt Bode, Leibniz Supercomputing Centre Vít Vondrák , IT4Innovations National Supercomputing Centre