Active Weather Returns Mid-Week With Rain And Snow In The Forecast For NL
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After a fairly grey start across much of eastern Newfoundland Tuesday, the weather finally began to brighten up later in the afternoon for parts of the Avalon and Metro. In fact, sunshine was slow to arrive in many areas, with some locations not seeing meaningful breaks in the clouds until after 2 PM. Meanwhile, central and western Newfoundland enjoyed much better conditions earlier in the day, with sunshine dominating around Grand Falls-Windsor and surrounding areas.
That quieter weather won’t last for long, however, as our next weather-maker is already organizing over northeastern Ontario this afternoon. This same system is currently bringing a messy mix of rain, snow, freezing rain, and ice into parts of Ontario and Quebec, and it will arrive in Labrador and Newfoundland Wednesday and continue into Thursday.
For Newfoundland, tonight will generally be quiet with temperatures ranging from near -1°C in St. Anthony to around 5 or 6°C in Corner Brook and Stephenville, while eastern/central areas settle closer to 1°C overnight. Clouds will increase Wednesday as rain spreads into western and southern Newfoundland through the day before becoming more widespread Wednesday night into Thursday morning. Rainfall totals for many areas will range between 5 and 15 mm, although parts of western Newfoundland and higher terrain could see over 20 mm due to upslope enhancement.
Labrador will see a much more active stretch of weather, particularly north of the Trans-Labrador Highway where accumulating snow is expected. Areas from Nain toward Voisey’s Bay could see 10 to 20 cm of heavy, wet snow, while higher terrain inland may exceed 30 cm by the time the system winds down Thursday evening. Farther south, including parts of Lab West and Churchill Falls, precipitation will begin as rain before changing to snow as colder air wraps in behind the low. I expect up to 5 cm in Labrador West by the time this system wraps up there, Thursday morning.
Wind will also become an issue later Wednesday into Thursday. While winds remain fairly modest through Wednesday morning, gusts will ramp up later in the day and especially Thursday as the low intensifies east of the region. Parts of western Newfoundland, including the Wreckhouse area, may approach warning criteria, while eastern Newfoundland and coastal Labrador could see gusts in the 50 to 70 km/h range Thursday evening.
Once this system moves through, cooler-than-normal air settles back across the province for Friday and the weekend. While much of Newfoundland will turn sunnier Thursday afternoon and beyond, temperatures will remain on the chilly side before moderating again early next week.
The next forecast update will be posted bright and early Wednesday morning!
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