Haboob and Dust Storm Explained: Wind Walls, Visibility, and Driving Safety
What haboobs and dust storms are, how thunderstorm outflow can create a wall of dust, and what to do if visibility drops on the road.
How dust walls form
Thunderstorm downdrafts hit the ground and spread outward. In dry dusty areas, that outflow can lift a dense wall of dust.
Strong gradient winds can also create dust storms without nearby thunderstorms.
Driving danger
The biggest hazard is sudden visibility loss. Drivers can enter a dust wall at highway speed and lose sight of lanes, vehicles, and road edges.
Pileups can happen when people stop in travel lanes or continue too fast.
Safer choices
If possible, exit the road before the dust arrives. If caught, slow carefully, pull completely off the road when safe, turn off lights if parked away from traffic, and keep your foot off the brake.
Follow local transportation guidance for dust storm safety.