Environment Canada has issued winter weather travel advisories and snowfall warnings for the National Capital Region as heavy snowfall is expected Monday afternoon and into the night.

Ottawa and surrounding areas could see snowfall accumulation of 10 to 20 cm, and the national weather agency is warning of low visibility in areas of heavy snow as well as snow covered and icy roads.

The snow is expected to advance into eastern Ontario beginning Monday afternoon and becoming heavy at times in the evening.

It will taper off to flurries late in the night followed by a risk of freezing drizzle, Environment Canada said.

Although the weather agency is still unsure where the heaviest snowfall may occur, it said motorists should expect hazardous driving conditions and “adjust travel plans accordingly.”

Snowfall amounts of up to 20 centimetres are forecasted across the region. Snowfall warnings are in place for much of eastern Ontario, while southwestern Quebec and Ottawa are under weather advisories.