If you cannot avoid being caught in an Arizona monsoon dust storm while driving on one of our state’s highways, there are a number of life-saving things you should do.
First, pull off the road. Do not stop in a travel lane or in the emergency lane. Look for a safe place to pull completely off the paved portion of the roadway. Turn your lights off and keep your foot off the brake to prevent your brake lights from coming on. Put your vehicle in “park” and stay inside with your seat belts buckled. Then, just wait the storm out.
– Bart Graves, Arizona Department of Public Safety