Chenowith Elementary School was cleared for about an hour today after smoke was detected in a classroom. North Wasco County School District 21 Superintendent Candy Armstrong says students and staff were evacuated to the Wahtonka Campus Gym at about 11:15 a.m. Mid-Columbia Fire & Rescue along with District Maintenance staff responded and found an issue with the heater in classroom 17 caused the smoke. Students remained at Wahtonka Campus until the building was cleared, and returned to the building at 12:10 p.m. The classroom has radiant heat, and Armstong says maintenance staff will ensure adequate and safe heat in the room until the repair can be made.