Snow squall watch in effect for much of southern Quebec

Environment Canada has issued a snow squall watch for much of southern Quebec, warning thatbrief, but intense snowfall could suddenlyreduce visibility.

Snow squalls are expected in the late morning to early afternoon Sunday, bringing about five centimetres of snow to the Montreal region.

Heavy snow and blowing snow will significantly reduce visibility, the agency says. Thick flurries combined with moderate to strong westerly winds will give near-zero visibilityfor a short period of time.

Temperatures will vary between1 C in the early afternoon and13 by 11 p.m., feeling like 22 with the wind chill.

The snow squall watch, in effect since about 4:40 a.m., covers Longueuil,Chteauguayand the island of Montreal.

There is also a snow squall watch in Beauce, Quebec City, Richelieu Valley, Drummondville, Kamouraska, Montmagny, Tmiscouata, Vaudreuil and the Eastern Townships.

Snow squalls cause weather conditions to vary considerably, Environment Canada says on its website.

Changes from clear skies to heavy snow within just a few kilometres are common, causing suddenreductions in visibility.

Snow squall watches are issued when conditions are favourable for the formation of bands of snow that could produce intense accumulating snow or near-zero visibility, the agency says.