Environment Canada has issued a snowfall warning for Toronto and the Greater Toronto Area, forecasting up to 15 cm of snow today. The snowfall is expected to start lightly in the morning but intensify in the afternoon or evening before tapering off late at night. The warning highlights potential disruptions to the evening commute, particularly in urban areas.

The warning extends from Hamilton to Kingston and Gananoque around Lake Ontario, covering cities like Mississauga, Brampton, Vaughan, and Markham. Meteorologist Bill Coulter anticipates around 10 cm for most areas, with localized bands of lake-enhanced snow potentially pushing totals higher.

Peak snowfall rates of 2 cm/h are possible with reduced visibility, prompting Environment Canada to advise adjusting driving behavior accordingly. Coulter predicts the heaviest snowfall around 3 or 4 p.m., urging people to plan accordingly for safe travel.

Toronto authorities recommend allowing extra travel time due to road and transit closures this weekend. Starting tonight, Lakeshore West GO service will be suspended for track maintenance until Monday. Pearson International Airport is preparing for potential flight cancellations and advises travelers to stay updated.

Temperatures in Toronto are forecasted to reach a high of -1°C today, feeling colder in the morning and afternoon. The weekend is expected to be warmer, with highs of 4°C on Saturday and 3°C on Sunday, before a slight increase to 8°C on Monday. Coulter suggests a brief warm-up on Saturday with melting snow, followed by seasonably mild weather next week.