Location: University of Leipzig
Date: 11. - 13.09.2023
Report by Max Maahn & Nina Maherndl

Co-funded by the DFG Collaborative Research Centre (AC)³ and SPP 2115 PROM, organized by Max Maahn and collaborators, the 4th International Summer Snowfall Workshop (ISSW4) was held in Leipzig, 11 - 13 September 2023 (see program). The main goal of this workshop series is to bring together the snowfall community to exchange new developments in all related fields, including ground-based and spaceborne remote sensing, in-situ, laboratory, and modelling studies. This year, 42 scientists from 12 different countries came together for oral and poster presentations on ice-containing clouds and snowfall (Fig. 1). This included excellent keynote presentations by Alexei Korolev, Alexis Berne (presenting for Anne-Claire Billault-Roux, who was unfortunately unable to attend), and Claire Pettersen. Between the presentations, lively discussion sessions on how to push the field forward and further joint activities took place. Of course, there was also time for fun activities. The participants enjoyed a dragon boat ride through the famous canals of Leipzig (Fig. 2). Afterwards, early career and young at heart researchers spent a nice evening at a local pub. The snowfall community will meet again at the next ISSW in two years, where we hope to see many familiar and new faces.