Lake-Effect Snow Squalls to Disrupt Travel on Thursday

Lake-effect snow squalls are expected to disrupt travel on Thursday, bringing significant snowfall across parts of southern Ontario. The most affected areas will include Highway 400, particularly near Barrie, where heavy snow is likely.
Forecast Details
A widespread accumulation of 15-30 cm of snow is anticipated, with localized areas potentially receiving over 50 cm. The heaviest snowfall will occur in narrow bands known as snow squalls, making conditions highly variable. It may be clear in one area while snowing heavily just a short distance away.
Areas Affected
- Highway 400 near Barrie: 40-50+ cm possible
- Bradford: 10-30 cm expected
- Newmarket: 10-30 cm expected
- Aurora: 10-30 cm expected
- Uxbridge: 10-30 cm expected
Travel Disruptions
Motorists traveling north of Toronto should prepare for challenging conditions. The snow squalls could lead to hazardous driving situations and delays on main highways, particularly on Highway 400.
Weather Outlook for the Holiday Season
Looking ahead to the week before Christmas, there is significant uncertainty in the forecast. While a wave of Arctic air is expected, milder temperatures may also push into the region. This combination may create fluctuating weather patterns, impacting travel and holiday plans.
As always, it’s advisable to stay updated on the latest forecasts to navigate the changing conditions effectively.


