John Rose, 611th Civil Engineer Squadron, inspects a weather vane Sept. 17, 2009. The vane will help 611th CES members predict which direction and how fast the wind is blowing, so the unit can determine where hazardous waste might spread during an annual Fall Spill Drill at Elmendorf Air Force Base, Sept. 14 through 18, 2009. (U.S. Air Force photo/Airman 1st Class Christopher Gross)