Sirens will wail and residents will likely see emergency vehicles headed through Ridgway, up County Road 5 on May 15. Traffic will filter back into town, with residents headed to an evacuation center. But there's no need to panic. It's just a drill – the county's first full-scale evacuation exercise. The practice evacuation begins at 9 a.m. that Friday, and involves more than 20 agencies, resident...