PHOENIX -- The National Weather Service predicts Phoenix could reach a high of 118 on Friday.
Officials at Salt River Project, the Phoenix area's largest electricity provider, are closely monitoring usage in order to redirect energy in case of a potential overload.
Company spokeswoman Scott Harelson said he doesn't expect usage to get anywhere near SRP's record 6,663 megawatts consumed in August 2011.
Extra personnel have been added to the U.S. Border Patrol's Search, Trauma, and Rescue unit as people illegally crossing the border from Mexico into Arizona could succumb to exhaustion and dehydration. At least seven people have been found dead in the last week in Arizona after falling victim to the desert's brutal heat.
At the Phoenix Zoo, animals are being doused with hoses and sprayed with sprinklers and misters throughout the weekend.