Rainfall and freezing rain warnings are in place for the West Nipissing and North Bay areas.
Environment Canada says a Colorado low will bring freezing rain to the area beginning Thursday afternoon or early Thursday evening, then rain, heavy at times, ending on Friday morning.
Ice build-up of 2 to 3 mm is possible, with rainfall amounts of 30 to 50 mm.
The heaviest rain is expected to fall Thursday night, with higher amounts possible in thunderstorms.
The weather agency says water will likely pool on roads and in low-lying areas, adding visibility will likely be suddenly reduced at times.
