Fog obscures visibility, presents travel safety hazards, and can be a primary source of liquid water in many otherwise arid regions of the world. It is difficult for models to represent correctly due to the complex interactions between cloud microphysics, radiation, surface fluxes, and dynamics that control its evolution. We have run some initial simulations of fog with the RAMS model to participate in a fog model intercomparison project, and we hope to secure funding for more in depth fog research soon.