A new weather model NCAR is working on uses Voronoi meshes to divide the planet into cells. The Voronoi meshes allow nice transitions of higher resolution to lower resolution cells so you can model at higher resolutions in areas of interest and dont have the same problems the WRF and GFS have trying to divide a sphere into square cells

https://ncar.ucar.edu/what-we-offer/models/model-prediction-... https://mpas-dev.github.io/