Environment Canada has issued a special weather statement warning of a "mixed bag of wintery precipitation" expected to hit the Ottawa area this weekend.

A low pressure system is expected to track over southern Ontario Saturday, bringing snow to the National Capital Region Saturday morning before it changes to freezing rain later in the day.

The precipitation doesn't end there. Freezing rain may change to rain during part of Saturday night before it changes back to snow early Sunday morning, causing travel conditions to deteriorate, the weather agency said.

Flurries could also be expected mid-day Sunday.

Environment Canada said it couldn't provide snowfall or rainfall amounts due to significant differences between forecast models.

"It currently appears that the heaviest snow may remain to the west of Ottawa with significant freezing rain a greater potential. However, this is subject to change," Environment Canada said in a weather bulletin Thursday evening.

Much colder air is expected to move into the region Friday with a forecasted high of –2 C.