Mesoscale models and regional climate models bridge the gap between local urban dynamics and larger atmospheric processes, covering entire metropolitan regions and their surroundings. These models, such as the Weather Research and Forecasting (WRF) model coupled with urban modules or (other) regional climate models, are essential for understanding the interactions between urban areas, regional weather patterns, and climate change scenarios, including the urban heat island’s regional impacts and mesoscale flows. Despite progress, challenges remain in linking fine urban details with mesoscale dynamics, especially for extreme weather events and future climate projections. Key research gaps include better coupling of urban features with mesoscale processes and regional climate models, improved parameterization of urban effects, and understanding feedbacks between cities and regional climates in both present-day and future climate change scenarios.

We encourage submissions on novel modelling approaches, integration of urban data, and extreme weather event studies, with a particular interest in how urban areas influence regional climate under various climate change scenarios. Topics of interest can be urban impacts on regional weather systems, enhanced coupling between urban and mesoscale/regional climate models, simulation of extreme weather events (e.g., heatwaves, storms) in urban region, long-term urban climate projections at regional scale, etc.