Winter storm hits Newfoundland with spring-like effects, travel impacted
The new set of stormy weather is thanks to a winter atmospheric river, which is bringing heavy rain, snowfall and strong winds to Newfoundland––making for difficult travel into Thursday
A strengthening storm is bringing significant rain and snow across Newfoundland. It's a true tale of two seasons, with winter storm, snowfall and rainfall warnings in effect for parts of the island.
The snow, combined with powerful, northerly winds, will likely make for some dangerous travel at times into Thursday.
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Meanwhile, heavy rain over the Avalon Peninsula threatens water pooling on roadways, and localized flooding, especially in poor drainage areas. Rainfall rates could reach 10-15 mm an hour at times.
The milder temperatures accompanying the rain could lead to significant snowmelt and run-off, as well. Be sure to plan ahead, and stay up-to-date on the weather warnings in your area as the storm continues.
Thursday morning: Storm conditions linger for Newfoundland
The storm strengthened and track over Newfoundland on Wednesday, bringing winter to the north, and a taste of early spring to the south. Rain has spilled into parts of Nova Scotia, too.
The snow ramped up over northwestern sections of Newfoundland Wednesday afternoon and will linger into Thursday morning.
At the same time, winds have increased to 50-70+ km/h, leading to blowing snow and periods of blizzard-like conditions through the overnight. Some locales have recorded even stronger gusts––with 102 km/h recorded in St. John's and 104 km/h documented in Cape Race.
Treacherous winter travel will be likely along Highway 1 from Port aux Basques to Gander. Parts of the northern coast could also see wind gusts reach 90-100 km/h overnight.
Snowfall totals could reach between 10-20+ cm by Thursday morning, with the heaviest falling across the west.
Conditions are forecast to improve on Thursday morning, but winds will remain high and gusty, prolonging the blowing snow.
Heavy rain prompts flooding concerns across the Avalon Peninsula
With heavy snow falling across the north, rain became widespread on Newfoundland.
At times, rainfall rates could reach 10-15 mm/h. With the ground still frozen, localized flooding will be a factor. Water pooling on roadways will also be a concern.
Between 30-50 mm of rain is forecast, with the heaviest likely across the southern coast. Special weather statements cover the region.
Winds will also increase on Wednesday evening across the Avalon to 80-100+ km/h, which could cause damage to trees, powerlines, and weak structures.
Rain eases overnight, but gusty winds will remain through Thursday morning.
Heightened threat for messy winter storms through early March
Stronger storms, which tap into Atlantic moisture are possible during early March.
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A colder pattern is also expected during early March, so this will bring a heightened potential for messy winter storms.
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Thumbnail courtesy of Colin Lane.