
The mid-June mark met with snow and frost for parts of Canada
Any signs of summer look to take a vacation from much of Canada this week, with even periods of snow and frost spanning both coasts
Frost and snowfall -- two words that don't typically roll off the tongue easily in mid-June. It's the reality for some Canadians this week, however, as any summer-like weather will take a back seat.
A developing clipper system will trigger beneficial and widespread rain from B.C. to Manitoba. The incoming instability features a cold air mass, lowering freezing levels across the Rockies by Wednesday. Elevations above 2400 metres will be cold enough to pick up snowfall accumulations, though mostly confined to the alpines.

Drivers along Highway 93, from Jasper to Banff, may be impacted by cold rain and slippery conditions. We'll be closely monitoring any snow accumulations in Banff, which normally pick up mere trace amounts in the month of June. Anything over 0.2 cm could be unusual for the area.
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A frosty East Coast
Meanwhile, another chilly upper-level low that's brought early spring-like conditions to the Great Lakes presents a risk for frost across Canada's East.
"With clear night skies and calm winds as back up, temperatures hover near the freezing mark very early Wednesday morning in Newfoundland," says Rachel Modestino, a meteorologist at The Weather Network. "A patchy fog risk covers a surprisingly big chunk of the island."

Frost advisories expand from the northern peninsula, central regions, along the north and south coastlines as well as the entire Burin Peninsula in the south.
While Newfoundland is certainly no stranger to any wintry weather, this frost is a bit unusual for mid-June across the region. On average, the Town of Buchans has a last-frost date of May 28, so we're currently sitting two weeks beyond the average. The Town of Gander, who typically ends their frost season on June 1, is also included in the frost advisory, making this an uncommon sight for mid-June.
It appears any signs of summer may be taking a vacation from Canada for most of this week, bringing unsettled and cooler weather from coast to coast for this third week of June.
