Visitors to Las Vegas on Friday stepped out momentarily to snap photos and were hit by blast-furnace air. But most will spend their vacations in a vastly different climate — at casinos where the chilly air conditioning might require a light sweater.
Meanwhile, emergency room doctors were witnessing another world, as dehydrated construction workers, passed-out elderly residents and others suffered in an intense heat wave threatening to break the city’s all-time record high of 117 degrees Fahrenheit (47.2 degrees Celsius) this weekend.
