Environment Canada has issued a winter weather travel advisory for Ottawa with 10-20 centimetres of snow in the forecast on Monday.

The forecaster says snow will advance into eastern Ontario in the afternoon. Motorists should expect hazardous winter driving conditions and are asked to adjust travel plans accordingly.

Environment Canada says confidence in exact snowfall totals remains low at this point. Snowfall warnings may be issued for some areas if necessary.

“Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow,” Environment Canada says.

“Take extra care when walking or driving in affected areas. If visibility is reduced while driving, slow down, watch for taillights ahead and be prepared to stop.”

The snow is expected to taper off to flurries late Monday night or early Tuesday morning with a risk of freezing drizzle.

Hazardous temperatures are expected on Sunday evening, with overnight lows reaching -22 C that could feel like -29 with windchill.

There is a risk of frostbite, Environment Canada warns. Temperatures are expected to warm up throughout the week.

Monday is expected to start with a mix of sun and clouds and a high of -8 C. Snow will arrive in the afternoon with an overnight low of -10 C.

Christmas Eve’s forecast shows a chance of snow and flurries in the evening. Clear skies are expected on Christmas Day.