FPCN11 CWNT 221228 AAA UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 6:27 A.M. MDT SUNDAY 22 MARCH 2026 FOR TODAY AND MONDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT. COLVILLE LAKE. TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. HIGH MINUS 23. WIND CHILL MINUS 39 THIS MORNING AND MINUS 31 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 34. WIND CHILL MINUS 31 THIS EVENING AND MINUS 43 OVERNIGHT. FROSTBITE IN MINUTES. MONDAY..MAINLY SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 24. WIND CHILL MINUS 40 IN THE MORNING AND MINUS 32 IN THE AFTERNOON. FROSTBITE IN MINUTES. UV INDEX 1 OR LOW. REMAINDER UNCHANGED. END