Intensifying storm spreads hefty snow over Quebec
Tuesday, November 13, 2018, 9:49 AM - Southern Quebec has already racked up some impressive early-season snowfall, and more is on the way for the week ahead, as another system sweeps by to the south. Combine this locally-heavy snowfall with some WAY below seasonal temperatures, and mid-November's going to look a lot more like mid-December for much of the province.
We take a look at when you'll need to adjust your commute, and how cold it's going to get -- and for how long -- below.
- Watching for significant mid-week snow across southern Quebec
- 25 cm+ possible for some spots
- Tricky commutes Tuesday for National Capital Region, Montreal, Quebec City
- Heaviest snowfall likely over higher terrain and along eastern St. Lawrence
SHOVELS AT THE READY AHEAD OF MID-WEEK STORM
Even though this week's major weather-maker for eastern Canada stays mainly south of the border as it passes Quebec and Ontario, that doesn't mean we're in the clear. With cold air firmly in place over southern Quebec, and the northern fringes of the storm set to track over the region, we're looking at a set-up for significant snowfall across southern and eastern Quebec through Wednesday.
The rain-snow transition line is expected to stay generally south of the border, but there's the risk for some mixing of rain and snow, or perhaps a bit of freezing rain, along the St. Lawrence Valley as the system moves through Tuesday.
WATCH BELOW: PLANNING YOUR COMMUTE AMID WINTRY WEATHER
A messy, wintry mix was already falling early Tuesday morning around the National Capital Region and Montreal making for some dicey travel conditions.
A broad swath of about 5-10 cm of snow is expected from Montreal to Quebec City, with higher accumulations into the elevated terrain of the Laurentians and across the Eastern Townships. The heaviest of the snow is expected further north and east, however, as the low lifts into Atlantic Canada and increasing moisture interacts with that bitterly cold air to the north. Up to 25 cm or more isn't out of the question for regions north and west of Quebec City, along with parts of the Gaspe.
"Prepare for quickly changing and deteriorating travel conditions," warns Environment Canada. "Rapidly accumulating snow could make travel difficult over some locations."
JANUARY-LIKE COLD BEHIND THE STORM
With the low pressure centre set to intensify as it moves into Atlantic Canada Tuesday night and Wednesday, much of southern Quebec will be in the cross hairs for strengthening winds from the northwest, and that means a fresh infusion of some impressively cold air (at least, by mid-November standards).
Afternoon high temperatures will be in the negatives across the board by the time we get to Wednesday, with highs approaching the negative double-digits for some. That's more in line with average highs for New Year's, not mid-November. It seems early in the season to say it, but weekend temperatures creeping back near the freezing mark will likely feel like a bit of a welcome relief. Highs are expected to trend up into the following week, however, with seasonal -- or slightly above -- temperatures expected.
WATCHING: LATE WEEK SNOW
Another storm is expected to track up the U.S. east coast late week and depending on the track could spread significant snow across southern and eastern parts of the province. There is high uncertainty with snowfall totals at this point, so expect snowfall forecasts to change. Check back later in the week for updates.