A dust storm warning has been issued for Pima County in southeastern Arizona, with the National Weather Service in Tucson sounding the alert at 6:17 p.m. on Sunday, August 30. The warning comes as the region faces potentially dangerous conditions, with visibility dropping to less than a quarter mile and strong to severe thunderstorms looming in the wake of the dust storm.
Motorists are advised to exercise extreme caution, as the National Weather Service emphasizes the importance of pulling over and staying alive. The warning extends to areas including Ajo, Hickiwan, Organ Pipe Cactus National Monument, San Simon, Why, Gunsight, Charco 27, Vaya Chin, KuKatch, and San Simon West, with highways such as Route 85 between mile markers 33 and 78 and Route 86 between mile markers 53 and 85 being particularly affected.
The dust storm, known locally as a haboob, is a characteristic of the Arizona monsoon season, which typically runs from June to September. These massive dust storms form when cold downdrafts from thunderstorms collide with the hot desert floor, creating powerful winds that can pick up and carry large amounts of dust into the air. The term "haboob" is derived from the Arabic word for "big, blasting winds."
According to meteorologist Andrew Deemer of the National Weather Service in Phoenix, haboobs can be short-lived but powerful, often lasting from a few minutes to an hour. The duration and intensity can vary based on factors such as wind speed and the availability of dry, loose soil.
For those caught in a dust storm while driving, the Arizona Department of Transportation's "Pull Aside, Stay Alive" campaign offers crucial guidance. Drivers are advised to slow down immediately upon encountering a dust storm, check traffic conditions around their vehicle, and begin the process of safely pulling off the road. It is critical to avoid stopping in a travel lane or emergency lane, and to look for a safe place to exit the highway entirely.
Once stopped, drivers should turn off all vehicle lights to prevent other drivers from crashing into their parked car. Setting the emergency brake and unbuckling the seat belt, drivers should remain in their vehicle until the storm passes. High-profile vehicle drivers are reminded to be particularly vigilant and to travel at reduced speeds.
For those not on the road, staying indoors and away from windows is recommended. The National Weather Service provides updates on watches and warnings, which can be found on their weather page.
The warning comes as Arizona continues to experience the challenges of its monsoon season, which can bring unpredictable weather patterns and intense storms. Residents are encouraged to stay informed and follow safety guidelines to ensure their well-being during these challenging times.
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