Precipitation extremes, including heavy snowfall and rainfall, may occur on different time scales ranging from minutes, days to seasons. These extremes can be associated with severe impacts such as flooding, but are also important for water supply as individual events can substantially raise the levels of water reservoirs. This session will focus on precipitation extremes, including their driving dynamic and thermodynamic processes, external drivers, impacts, statistical properties, and changes in their occurrence related to climate variability and climate change. Therefore contributions are invited that investigate precipitation extremes and their impacts under past, present and future climate conditions. This includes studies that aim to understand individual events, the spatial and temporal variability in the occurrence of precipitation extremes, predictability, and long term changes, based on observational data and climate models including atmospheric models at very high resolution. Contributions are also invited that link precipitation extremes with environmental and socio-economic impacts.