Monday, April 18, 2022, 8:10 a.m. – Winter system threatens 5-10 cm of snow in parts of southern Ontario and Quebec until Tuesday.
A severe winter storm from the late season threatens some difficult trips through parts of Ontario and Quebec until Tuesday. The cluttered system will move to start the week on Monday, with a chance of a little buildup of snow that can be dug with a shovel – no small feat for that in late April. Winter weather warnings outline areas of southern Ontario, a warning of reduced visibility, and slippery surfaces such as roads and sidewalks. More on the weather and expected impacts, below.
FROM MONDAY TO TUESDAY: A WINTER STORM ALLOWED LEAKS SNOW IN CENTRAL CANADA
A dynamic model spanning the eastern half of Canada and the United States will lead to a complex and winter setup for Ontario and Quebec over the next few days.
The complex storm track and delicate temperature gradient will mean the difference between gloomy rain and snow, which can be dug with a shovel for almost everyone between Windsor and Quebec City.
The system began entering southern Ontario on Monday afternoon, leading to increased clouds during the day with rainfall erupting from west to east throughout the region.
In the lower heights and areas near the lake you will see a mixture of rain and snowflakes, with a chance of a small accumulation of snow on raised or grassy surfaces. But in areas with higher altitudes, including the Niagara slope, the limit temperatures will fall below the freezing point, which allows the accumulation of more significant accumulations of 5-10 cm.
“The most significant impact on commuting in the Toronto area is likely to be Monday night, with wet roads and the risk of icy ramps and overpasses,” warns Michael Carter, a meteorologist with The Weather Network. “The snow that will remain will be more likely for travelers to the north and west who are moving to higher altitudes.”
Environment and Climate Change Canada (ECCC) has issued recommendations for winter travel in the south, threatening significantly reduced visibility in heavy snow and peak snow speeds of up to 3 cm per hour. Drivers are urged to adapt to changing road conditions and to be extra careful when walking or driving in the affected areas.
Tidal and gusty winds will continue until Tuesday, leading to periods of low visibility and changing conditions.
Stronger, secondary lows will develop later on Monday, which will enter deeper moisture and lead to more significant impacts on parts of Quebec by Tuesday.
Montreal can see 5-10 cm of snow, and the higher terrain outside the St. Lawrence Valley will see 10-20 + cm by Tuesday.
This will be accompanied by gusts of wind, which will lead to periods of dangerous travel conditions, similar to winter.
There may even be some ice pellets for the final sections of eastern Quebec on Tuesday afternoon. In the evening and at night, rainfall in the countryside from west to east will begin to decrease.
There will be lingering light snow in southern Ontario on Tuesday, which should subside in the morning. Sporadic rainfall may predominate in parts of villas and eastern areas in the afternoon before decreasing in the evening.
Looking ahead, another system could hit the region until Thursday morning, before temperatures drop by the end of the week.
We are seeing the potential for a few days of warmer weather in the last days of April, but a cooler model is expected in early May as the blocking model is expected to recover.
Stay tuned to The Weather Network for the latest weather updates in Central Canada.
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