FPCN11 CWNT 200012 AAA UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 6:11 P.M. MDT THURSDAY 19 MARCH 2026 FOR TONIGHT FRIDAY AND FRIDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT FRIDAY. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TONIGHT..SNOW ENDING THIS EVENING THEN PARTLY CLOUDY. WIND NORTHWEST 30 KM/H BECOMING LIGHT LATE THIS EVENING. LOW MINUS 28. WIND CHILL MINUS 29 THIS EVENING AND MINUS 36 OVERNIGHT. RISK OF FROSTBITE. FRIDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY NEAR NOON WITH 60 PERCENT CHANCE OF FLURRIES IN THE AFTERNOON. WIND UP TO 15 KM/H. HIGH MINUS 17. WIND CHILL MINUS 33 IN THE MORNING AND MINUS 21 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. FRIDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES. CLEARING BEFORE MORNING. WIND UP TO 15 KM/H. LOW MINUS 27. WIND CHILL MINUS 25 IN THE EVENING AND MINUS 38 OVERNIGHT. RISK OF FROSTBITE. REMAINDER UNCHANGED. END