Winter weather advisory in effect for Ottawa-Gatineau

Expect showers throughout the day before things take a nasty turn towards snow this evening.

Today's high is 7 C, but the weather could take a nasty turn this evening

Winter driving conditions are expected for Thursday. (Michel Aspirot/CBC)

Things are about to change. Winter is coming — and here's the timeline.

Today, there's the possibility of a few showers by the afternoon as the high hits 7 C under cloudy skies and a strengthening southerly wind.

By evening, however, a cold front will sweep the region, one that could change those showers to a burst of snow and wind.

Environment Canada has issued a weather advisory that warns of snowfall, rapidly falling temperatures and "icy and slippery" road conditions.

Wind gusts could be as high as 70 km/h in some regions, and downed trees and power lines are both a possibility, the agency said.

Visibility may also be reduced due to blowing snow.