Environment Canada is issuing a weather advisory for Ottawa as it expects up to 10 centimetres of snow overnight followed by possible freezing rain.
The weather agency says snow will develop Tuesday night and may be heavy at times, but should taper to flurries by Wednesday morning.
Through the day Wednesday, January 19, Environment Canada is calling for a risk for freezing rain before before temperatures moderate in the late afternoon.
A sharp cold front is expected to push its way through the region early Wednesday evening which will cause temperatures to abruptly drop back below freezing.
The combination of snow, freezing drizzle, and falling temperatures could make for hazardous road conditions late Wednesday, particularly for untreated surfaces.