Environment and Climate Change Canada says parts of the Sahtu and Arctic coast should expect snow and blowing snow from Monday to Wednesday next week.
In a warning published on Friday, federal meteorologists said storm conditions would result from an "intense low pressure system" moving across the area between October 28 and October 30.
A large area of the territory, covering all regions east of a line extending from the North Slave diagonally up to Inuvik, should be prepared for wind gusts in excess of 60 km/h.
The communities of Sachs Harbour, Paulatuk, and Ulukhaktok received a more specific warning for considerable quantities of snow during the same period.
A map published by Environment and Climate Change Canada identified a "moderate" weather threat to those communities. "Be prepared," forecasters wrote in a tweet.