The Tłı̨chǫ winter roads might close for the season during the weekend because of warming temperatures.
In a tweet Friday, the Department of Infrastructure stated the roads could close within 72 hours.
They include the the Gamètì, Wekweètì and Whatì winter roads.
The possible closures could come as temperatures are forecast to rise above zero next week and portages could quickly deteriorate, the Tłı̨chǫ Government said in a statement on its website.
"Please schedule to complete all re-supply loads to the communities by no later than Monday evening April 12, 2021," the statement said.
Their closure would come slightly later than last year, when they closed on April 10, but earlier than historical averages.
According to the Department of Infrastructure's 20-year average closing dates, the Wekweètì road closes on April 13 and the Gameti and Whatì roads close on April 15.
Opening dates fall on Jan. 28 for the Whatì road, Feb. 19 for the Gamètì road and March 5 for the Wekweètì road.