2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85738Localized rain events have been found to follow power-law distributions over several decades, suggesting parallels between precipitation and seismic activity [O. Peters et al., PRL 88, 018701 (2002)]. Similar power laws can be generated by treating raindrops as passive tracers advected by the velocity field of a two-dimensional system of point vortices [R. Dickman, PRL 90, 108701 (2003)]. Here I review observational and theoretical aspects of fractal rain distributions and chaotic advection, and present new results on tracer distributions in the vortex model.16 pages; 8 figures (high resolution versions of figures 1-3 available on request)Atmospheric and Oceanic PhysicsOther Condensed MatterFluid Dynamicstext