Ottawa's extreme cold warning finally ends but here comes the snow

Environment Canada issued another winter weather advisory Tuesdayas flurries moved into the Ottawa-Gatineau area.

As much as four centimetres could fall on the city today, and Environment Canada is forecasting a strong chance of more snowWednesday and Thursday.

Drivers are being warned that road conditions could be difficult as the snow accumulates.

Environment Canada liftedits extreme cold warning for Ottawajust before 11 a.m. Tuesday, as the temperature hovered around21 C and the wind madeit feel more like29.

The warning had been in place since the morning of Dec. 27.

The weather agency had blamed the cold weather on a polar vortex: a phenomenon in whichalarge pocket of dense arctic air blastsfreezing air over a region, sometimes for days at a time.

• PHOTOS | Here's how Ottawa is braving this extreme cold warning

According to the agency's weather data, the lowest temperature during the six-day stretch was recorded on New Year's Day, when the thermometer plummeted to30.2C.

(That's before accounting for wind chill,by the way.)