Nova Scotia highway webcams are operated by the Nova Scotia Department of Transportation and Infrastructure Renewal (TIR). Most are mounted on tall steel towers, most of which have weather sensors included on the tower. The sensors measure temperature, humidity, barometric pressure and wind direction and speed.
The webcam pic below is more or less real time and will update every 30 to 40 minutes, depending on conditions.
The Tantallon highway camera is mounted on the south side of Highway 103, AKA the Fisherman's Memorial Highway, just east of the intersection with Bowater Mersey Road. It looks west across the intersection and down Highway 103. Camera and tower are close to 2 kilometres north of Upper Tantallon and 8 kilometres north of Tantallon.