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High Winds, Blowing Dust Expected to Close I-40

High Winds, Blowing Dust Expected to Close I-40

Threat of Dust Storm Could Slow Northern Arizona Traffic Today

PHOENIX — High winds and blowing dust are expected to impact Northern Arizona and will likely prompt the closure of Interstate 40 east of Flagstaff today.

The National Weather Service is predicting strong gusting winds as high as 50 mph today. Drivers should expect long delays and be aware of the lack of appropriate detour routes.

The I-40 westbound closure is expected to be set at milepost 252 in Winslow, where the traffic will be diverted into the city. The eastbound closure, east of Flagstaff, would begin at milepost 219 at the Twin Arrows interchange, where traffic will be turned around.

In addition, State Route 99 at the Leupp interchange with I-40 will be closed as well.

Closures of I-40 can last hours due to the nature of the storms. In the past, similar conditions have been strong enough to cause high-profile vehicles to be blown over. Blowing dust has reduced visibility to near zero. With the threat of a storm, ADOT crews will be closely monitoring conditions.

Drivers planning trips along I-40 this week are urged to monitor travel conditions by calling 5-1-1 within Arizona, 1.888.411.ROAD outside the state, or via the Web at Because weather conditions can quickly evolve, drivers are encouraged to regularly check in with ADOT’s Traveler Information Service. Motorists should delay or detour travel plans if necessary.

ADOT, along with the Arizona Department of Public Safety, will continue to work as a public safety team to support Arizona’s highways and drivers and will closely monitor conditions on I-40 while maintaining driver safety. I-40 is a critical national corridor for commercial traffic and there are few other alternatives across Northern Arizona.

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Short video of 2010 dust storms along I-40:

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