Heat wave: Triple-digit temperatures heading to Texas, California, Arizona ABC NewsA heat dome will send temperatures into the triple-digits across the West as fires burn CNNExpanding heat dome brings 1st heat wave of the season to Bay Area CBS San FranciscoSouthwest US to bake in first heat wave of season and records may fall The Associated PressScorching triple-digit heat escalates to life-threatening situation for 20 million in West Fox Weather