A mobile weather app that utilizes Google Maps to track and report road conditions helped Hall County school officials decide to keep students home for safety reasons during last week’s snowstorm. “Nineteen years ago when I first became a superintendent, you’d get in a pickup truck and you’d go for a ride at 3:30 in the morning and you’d have to make a decision based on extremely limited information,” Superintendent Will Schofield said during a school board meeting Monday night.