Prolonged blizzard conditions with near-zero visibility in blowing snow are expected.
What: Near-zero visibility in blizzard conditions.
When: Now through Monday night.
Where: Dempster Highway near the Richardson Mountains.
Additional information: A persistent ridge of high pressure over the Beaufort Sea and a low pressure system over the Gulf of Alaska are generating a strong pressure gradient across the Richardson Mountains until Monday night.
Easterly winds of 60 km/h gusting to 80 will further increase to 80 km/h gusting to 110 this morning. Wind-swept snow and falling snow combined with the strong winds will result in blizzard conditions with near-zero visibility. Winds will subside through Sunday, then will strengthen again on Monday. Blizzard conditions will remain.
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Road closures are possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to YTstorm@ec.gc.ca or post reports on social media using #YTStorm.