A powerful storm kicked up a towering wall of dust that rolled through metro Phoenix on Monday, darkening the sky, blinding drivers, knocking out power and grounding flights at one of the nation’s busiest airports. Bernae Boykin Hitesman was driving her son and daughter, ages 9 and 11, home from school when the storm, known as a haboob, arrived late in the afternoon in Arizona City, about 60 miles (95 kilometers) southeast of Phoenix. Boykin Hitesman said she could taste the dust and feel the strong wind rattling her car until it finally passed about 15 minutes later.