The remnants of record-breaking Hurricane Patricia reached Canada Wednesday, dumping heavy rain and blinding drivers at times to pedestrians and other vehicles.

At least a dozen people in Toronto were reported struck by vehicles as heavy rains reduced visibility before dawn.

Police urged drivers in Twitter messages to slow down, and for pedestrians to look both ways and only cross roads at marked intersections after collisions were reported across the city between 6 am and 10:30 am local time (1000 and 1430 GMT).

The low-pressure system sweeping through the region formed in the US south, gathering moisture left over from Patricia before heading north and intensifying over the Great Lakes, according to Environment Canada.

The government agency warned of heavy rains dropping up to 55 millimeters on Toronto, as well as 70-80 kilometer per hour gusts of wind -- strong enough to topple trees and power lines -- Wednesday and Thursday.

The storm is forecast to move into sparsely populated northern Quebec on Friday.

Patricia, the strongest hurricane ever recorded, crashed into Mexico's Pacific coast on Friday, flattening homes and uprooting trees but causing no deaths.