I shall elaborate upon the multi-scale models of Majda and Klein for the tropical atmosphere and those of Biello and Majda for the Madden-Julian Oscillation to incorporate active moisture, using the multi-cloud models of Khouider and Majda. The asymoptotic analysis yields a two time and length scale model wherein embedded waves of synoptic scale activity drive convective organization on the planetary scales through the
upscale fluxes of momentum and moisture. The novel multi-scale
organization of the latent heat release through deep convection makes for a subtle asymptotic analysis, with the possibility of waves on multiple scales.