The National Weather Service in Tucson has issued a * Dust Advisory for... Northwestern Cochise County in southeastern Arizona... * Until 830 PM MST. * At 523 PM MST, an area of blowing dust was located 8 miles southeast of Willcox. HAZARD...Less than three miles visibility with strong winds in excess of 40 mph. SOURCE...Satellite observations. IMPACT...Hazardous travel. * Locations impacted include... Willcox, Cochise, Texas Canyon and Cascabel. This includes the following highways... Route 191 between mile markers 58 and 66. Interstate 10 between mile markers 318 and 341. Route 186 between mile markers 327 and 334. Blowing dust brings reduced visibility, leading to dangerous driving conditions. If driving, avoid blowing dust if possible. If caught in dense blowing dust, pull off the road, turn off your lights and keep your foot off the brake. Blowing dust can be unhealthy and has been known to lead to Valley Fever. Avoid outdoor exposure.