Storm Pattern Navajo rugs emerged from the JB Moore designs in the early 1920's. Featured in the design are the Four Sacred mountain ranges in each corner, the center of the rug has lightening, thunder, feathers and waterbugs. All of these elements depict rain and are prayers for rain in the ever semi-aired climate of the Southwest. The weaver of this rug has included butterflies on the border of the weaving representing beauty and joy. This weaving is close to a 3.5 by 5.5 size area rug.