The National Weather service has extended its excessive heat warning though 11 p.m. Thursday night. The warning calls for record to near-record high temperatures through Tuesday evening. Residents are urged to stay cool, and hydrated. Designated cooling centers are the Yucca Valley Community Center. The Twentynine Palms Senior Center; in Joshua Tree, the Hi-Desert Medical Center cafeteria, and the Joshua Tree Community center. There are no designated cooling centers for the Landers area.