Rainfall severe thunderstorm Warning Montreal rain

Photo by Nicolas McComber

Rainfall warning in Montreal: Up to 40 mm of rain projected, starting tonight

A rapid drop in temperatures overnight Wednesday could lead to flash-freezing of ponding water, resulting in slippery roads and poor travel conditions.

A rainfall warning from Environment Canada is projecting that Montreal will receive 30 to 40 mm of rain starting overnight tonight.

A previous special weather statement noted that this major weather system will cause “explosive coastal growth” as temperatures rise well above the freezing mark. A rapid drop in temperatures overnight Wednesday could lead to flash-freezing of ponding water — resulting in slippery roads and poor travel conditions — and very strong winds are likely to damage trees and equipment. An accumulation of flurries in some areas could further complicate conditions and reduce visibility on Thursday.

“As the ground is frozen and has a reduced absorption capacity, significant amounts of water could accumulate on roads and in other areas. A significant rise in the flow and level of some rivers is expected. Consider changing any non-essential travel plans for this period.”

Stay safe out there.

Rainfall warning in Montreal: Up to 40 mm of rain projected, starting tonight

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