12:36 p.m. EDT Monday 16 March 2026

Strong winds and snow heralding a sudden return to winter.

What:
Strong winds gusting 70 to 90 km/h.
5 to 10 cm of accumulating snow.
Reduced visibility in blowing snow.

When:
Wind - this afternoon through Tuesday morning.
Snow and blowing snow - tonight into Tuesday morning.

Additional information:
Strong southwest winds are expected to develop this afternoon with the passage of a sharp Arctic cold front. Winds will veer to the west tonight then slowly start to ease Tuesday morning.

High winds may toss loose objects or cause tree branches to break. Local utility outages are possible.

As much colder arctic air floods in tonight, snow is expected to rapidly develop with a general snowfall of 5 to 10 cm expected by Tuesday morning. A few localities may receive 10 to 15 cm of snow.

With the arrival of snow tonight, blowing and drifting snow especially in exposed areas will cause a sudden return to winter driving conditions.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

In effect for:

• Pickering - Oshawa - Southern Durham Region