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High-impact blizzard en route to Labrador, historic snowfall possible

Monday, November 23rd 2020, 7:30 am - Dangerous blizzard conditions are expected in Labrador through Tuesday due to a potent system that is intensifying as it tracks eastward.

A potent low pressure system that brought the first significant and widespread snow across Ontario and Quebec on Sunday will deliver its last and most powerful early winter punch to Labrador this week. Northerly winds gusting up to 90 km/h combined with the threat for 80 cm of snow will make for dangerous blizzard conditions, and near impossible travel. More on the timing and impact of this paralyzing storm set-up, below.


WEATHER HIGHLIGHTS:

  • Widespread rain through much of the Maritimes on Monday, snow reaches western Newfoundland on Tuesday afternoon
  • Heavy snow pushes into Labrador Monday afternoon, with freezing rain changing to rain across the southeast by Tuesday morning
  • Blizzard conditions with gusty winds and near zero visibility in snow through central Labrador Monday

MONDAY INTO TUESDAY: SNOW, WIND, BLIZZARD WARNINGS SPAN LABRADOR AS SYSTEM INTENSIFIES

Widespread winter warnings are in effect for Labrador with 50-70+ cm of snow forecast across the region through Tuesday.

"This storm intensifies like a freight train and is going to bring a crippling blizzard to parts of Labrador," warns Weather Network meteorologist Tyler Hamilton, adding that the snow begins on Monday and will persist well into Tuesday evening.

The system is strengthening as it tracks eastward, being fuelled by a sizable temperature gradient with a cold upper trough interacting with milder air towards the southwest. Added moisture is also being drawn up the eastern seaboard of the United States, which could result in a potential historic snowfall event.

ATLSnow (3)

Sustained winds will also intensify to 40-60 km/h on Tuesday afternoon, with northerly gusts up to 90 km/h, which will likely result in near zero visibility and whiteout conditions.

Environment Canada has issued blizzard warnings for Churchill Valley, Eagle River, and Upper Lake Melville.

“Rapidly accumulating snow will make travel difficult. Consider postponing non-essential travel until conditions improve," says EC in the warning.

Blizzard warnings are issued when widespread reduced visibilities of 400 metres or less are expected for at least 4 hours.

RECORD NOVEMBER SNOW FALLS

HVGB

Happy Valley-Goose Bay’s snowiest November day occurred on November 12, 1944 when 40.6 cm accumulated. Hamilton says that this incoming storm will certainly challenge this record.

Conditions are expected to gradually improve late on Tuesday.

Be sure to to check back for frequent weather updates in your area.

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