© DriveBC A DriveBC webcam shows snow accumulation on the Coquihalla Highway, south of Merritt, B.C., on Monday. Environment Canada says hazardous weather conditions are expected along B.C. 's Coquihalla Highway from Hope to Merritt, creating conditions expected to affect Family Day driving conditions Monday. "Snow near the summit of Coquihalla Highway will continue today and is expected to intensify this evening," according to a statement from the agency. "Consider postponing non-essential travel until conditions improve," Environment Canada advises.