There’s a good chance snow squalls will develop north of Sault Ste. Marie and then swing southerly into the city for a brief time. Sault Ste. Marie is not included in the watch at this point, but persistent lake effect snow showers could leave us with an additional 4 to 5cm by Tuesday.
Snow squall watch in effect for:
Searchmont – Montreal River Harbour – Batchawana Bay
Persistent snow squalls are expected to develop. Under the snow squall bands, visibilities will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
Lake effect snow bands have drifted to the north of Montreal River as expected early this morning.
Latest indications continue to show that the lake effect activity will return to the region from the north beginning later this morning.
Local snowfall amounts of 5 to 10 cm are likely later today and tonight.
There is potential for snow squalls to develop later today, and if they do, local snowfall amounts may reach 15 cm. Very low visibility in bursts of heavy snow and blowing snow are possible.
Snow squalls will be possible again tonight and into Tuesday.
Snow squalls cause weather conditions to vary considerably; changes from clear skies to heavy snow within just a few kilometres are common. Visibility may be significantly and suddenly reduced to near zero. Road closures are possible.