UPDATE: Winter storm watch updated to warning for Lanark County


A significant winter storm is expected to hit much of Lanark County late Tuesday and into Wednesday.

Up to 20 cm of snow, along with a few hours of freezing rain and ice pellets could make for hazardous travel conditions.

Snow associated with a major winter storm is expected to arrive in the Lanark County area late Tuesday afternoon and continue into Wednesday morning.

Environment Canada says snow may change to ice pellets or freezing rain Tuesday night. Several hours of freezing rain are possible, particularly in the Ottawa Valley. The amount of snow will depend on how quickly precipitation changes to ice pellets or freezing rain, although some locations may receive 10 to 20 cm of snow.

“This is a heads up to the potential development of an impactful winter storm with heavy snow, ice pellets, and freezing rain,” Environment Canada says.

The exact track of this weather system is still somewhat uncertain, and as a result, expected snowfall amounts and precipitation types may change. Warnings may be issued as this event draws nearer.

Rapidly accumulating snow could make travel difficult over some locations. Poor weather conditions may contribute to transportation delays.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.

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