Record highs are possible in the Southwest over the next few days as heat returns to the region. An Excessive Heat Watch has been issued in desert areas of Arizona and California, including Phoenix and Yuma. Triple digit heat is likely in the Excessive Heat Watch area on Sunday as the mercury soars to 105 to 110 degrees. Temperatures will begin to warm today with a few areas topping the century point on Saturday. It looks like the triple digit heat will be here to stay, as the forecast into next week has readings above 100 for Phoenix and for many areas in southernwestern Arizona and southeastern California. Hot temperatures of 105 degrees and above will significantly increase the potential for heat related illness. Those working or being active outdoors during the daytime or those without access to adequate air conditioning will be most at risk. Never leave kids or pets unattended in cars. Drink more water than usual and avoid alcohol, sugar, and caffeine. When outdoors, wear light colored clothing and a wide-brimmed hat to keep your head and body cooler. Take frequent rest breaks in shaded or air conditioned environments. Public places with air conditioning include libraries, community centers, government buildings, malls, and special refuge stations. Recognize the signs and symptoms of heat illness. Early symptoms include things such as headache, thirst, and muscle cramps. Serious symptoms include weakness, skin that is cool to the touch, fast but weak pulse, nausea, and fainting. Severe symptoms include hot and red dry skin, fast and strong Pulse, sweating that has stopped, and unconsciousness. Untreated heat illness can lead to fatal heat stroke. Stay cool and stay hydrated. For WeatherNation: Meteorologist Mace Michaels