A messy commute could be in store for Tuesday.

Environment Canada has issued a snowfall warning for Parry Sound and Muskoka as a low pressure system moves into the region. The weather office expects the system to drop 15 to 20 centimetres.

A winter travel advisory is also warning of 10 to 15 centimetres of snow for the rest of the region. Flurries will begin falling on Tuesday morning and continue through the day.

That snow is expected to change to rain by the evening, as temperatures rise above freezing.

The advisory has been issued for:

  • Barrie - Collingwood - Hillsdale
  • Midland - Coldwater - Orr Lake
  • Orillia - Lagoon City - Washago
  • Innisfil - New Tecumseth - Angus
  • Orangeville - Grand Valley - Southern Dufferin County
  • Shelburne - Mansfield - Northern Dufferin County
  • Newmarket - Georgina - Northern York Region
  • Uxbridge - Beaverton - Northern Durham Region
  • Owen Sound - Blue Mountains - Northern Grey County
  • Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes
  • Lindsay - Southern Kawartha Lakes
  • Haliburton - Minden - Southern Haliburton County

The weather officer says people should expect poor driving conditions for much of the day.