FPCN11 CWNT 220624 AAE UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 12:24 A.M. MDT SUNDAY 22 MARCH 2026 FOR TONIGHT SUNDAY AND SUNDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 28. WIND CHILL MINUS 37 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 17. WIND CHILL MINUS 37 IN THE MORNING AND MINUS 25 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. SUNDAY NIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 25. WIND CHILL MINUS 25 IN THE EVENING AND MINUS 32 OVERNIGHT. RISK OF FROSTBITE. REMAINDER UNCHANGED. END