Montreal Weather Alert: Snow Squall Watch in Effect as Arctic Air Mass Approaches
Montreal residents are bracing for a significant winter weather event as Environment Canada has issued a yellow snow-squall watch for the metropolitan area. The alert, which remains in effect through Thursday evening, warns of potentially hazardous conditions as an Arctic air mass descends upon southern Quebec.
Current Conditions and Immediate Forecast
Thursday morning in Montreal began with temperatures hovering around minus-2 degrees Celsius, but visibility was significantly reduced due to persistent heavy flurries. Environment Canada meteorologists caution that these snow squalls can create highly variable weather patterns, with conditions potentially shifting from clear skies to intense snowfall within just a few kilometers.
The federal weather agency specifically warns that accumulated snowfall could reach up to five centimeters, accompanied by blowing snow that may reduce visibility to near-zero levels at times. These flurries are expected to taper off by evening, but the respite will be brief as much colder air prepares to settle over the region.
Dangerous Temperature Drop Expected
As Thursday night approaches, temperatures are forecast to plummet to minus-12 degrees Celsius, with wind chill values making it feel like minus-20. However, this is merely the beginning of what Environment Canada describes as a "reloading" of Arctic air that will displace warmer air masses well south of their usual positions.
Environment Canada meteorologist Peter Kimbell provides specific details about the coming cold snap: "Residents of southern Quebec can expect temperatures in the mid-minus-20s Celsius from Friday night through Sunday, with wind chills reaching minus-34 degrees Celsius and close to minus-40 in some areas."
Weekend Arctic Blast Details
The meteorological situation involves a low-pressure system originating from the Great Lakes region that is currently transporting snow into southern Quebec. This system will be followed by what Environment Canada characterizes as "bitterly cold conditions" that will establish themselves firmly by the weekend.
Northern regions of Quebec face even more extreme conditions, with forecast wind chill values potentially approaching minus-45 degrees Celsius. The combination of fresh snowfall and these dangerously low temperatures creates multiple hazards for residents, including:
- Reduced visibility during commutes
- Rapidly accumulating snow on roads and walkways
- Extreme cold health risks for vulnerable populations
- Potential for frostbite within minutes of exposure
Environment Canada emphasizes that snow squalls represent particularly unpredictable weather phenomena, capable of creating localized whiteout conditions even when surrounding areas experience clearer weather. Residents are advised to monitor updated forecasts closely and prepare for rapidly changing conditions throughout the Montreal area.
