Convective processes, such as diabatic warming associated with cloud formation, act on scales that global models are beginning to resolve. We are well able to observe clouds, but understanding the connection between moist processes and motion fields has been a long-standing goal, as the three-dimensional wind field is difficult to observe directly. Global kilometer-scale modelling makes the link between small-scale convection and the large-scale circulation a new frontier, and this frontier is the topic of this presentation. Specifically, I will discuss two questions:

1) Can we observe that gravity waves organize convection on the mesoscale?

2) What can we learn about gravity waves from global high-resolution simulations?