Caused by winds clocked at over 50 miles per hour locally, nearly 3,400 customers, some 8,500 people, were affected by power outages in the Morongo Basin Monday afternoon. Starting about 2:43 p.m., Edison reported outages in Joshua Tree (2,168 customers), Twentynine Palms (828 customers) and the Desert Heights neighborhood of Twentynine Palms (381 customers).