Up to 25 centimetres of snow have fallen in parts of the GTA, leading to a slew of shutdowns and traffic problems.

GTA hit by winter storm

Commuters across the Greater Toronto Area are dealing with the aftermath of a winter storm that shut schools, grounded flights and closed the Scarborough RT.

Environment Canada issued a snowfall warning for the GTA and southern Ontario early Wednesday morning, anticipating high winds and up to 25 centimetres of snow.

“Walk and drive with caution in the extreme weather,” Toronto Winter Operations said in a brief statement released Feb. 5.

The TTC issued a statement Wednesday afternoon saying it had closed the SRT to clear ice and snow off the rails. In its place, shuttle buses were used along the route.

GO Transit experienced several delays, the longest reaching up to two hours.

In a series of tweets, Toronto police reported the Don Valley Parkway north of Millwood Avenue was closed due to poor conditions, and Finch Avenue East between Leslie and Bayview was closed because of abandoned vehicles.

Fifteen schools were closed throughout the GTA on Wednesday, though all schools in the city of Toronto remained open.

At Pearson, over 150 flights were cancelled or delayed due to the snow on both sides of the border, including the U.S. Northeast, where more than 2,000 flights have been cancelled.