Beware, says Environment Canada: Snowfall could be fast and flurrious

That low-level Monday-morning headache could be a harbinger of a low-pressure system headed here from the Midwest.
Because of it (the system, not your headache), Environment Canada has issued a special weather statement that covers Montreal, Laval, Châteauguay and the Longueuil areas, warning of changing precipitation Monday through Tuesday.
The federal meteorologists predict rain till after suppertime on Monday, at which time snow should begin to fall. Tuesday morning, the snowfall could