It affected Influence Imperial Valley in Southern California and Mexicali Valley in northern Baja California .

Flooding left Departing 2,000 people homeless in Mexicali along the United States-Mexico border , in addition , 325 homes and businesses were destroyed Destroying in southern California .

Most of the damage Damaging occurred Coming_to_be in the twin cities of Mexicali and Calexico on the Mexico–United States border .