FPCN11 CWNT 211040 FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 5:00 A.M. MDT SATURDAY 21 MARCH 2026 FOR TODAY AND SUNDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT. THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE. TODAY..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF FLURRIES THIS AFTERNOON. WIND UP TO 15 KM/H. HIGH MINUS 12. WIND CHILL MINUS 29 THIS MORNING AND MINUS 19 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 25. WIND CHILL MINUS 20 THIS EVENING AND MINUS 33 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. 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. LUTSEL K'E REGION. TODAY..CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES THIS MORNING. CLEARING THIS AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH MINUS 18. WIND CHILL MINUS 31 THIS MORNING AND MINUS 26 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..A FEW CLOUDS. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 29. WIND CHILL MINUS 30 THIS EVENING AND MINUS 40 OVERNIGHT. FROSTBITE IN MINUTES. SUNDAY..MAINLY SUNNY. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH MINUS 22. WIND CHILL MINUS 40 IN THE MORNING AND MINUS 32 IN THE AFTERNOON. FROSTBITE IN MINUTES. UV INDEX 1 OR LOW. FT. RESOLUTION REGION INCLUDING HWY. 6. TODAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES LATE THIS MORNING AND EARLY THIS AFTERNOON. CLEARING LATE THIS AFTERNOON. WIND UP TO 15 KM/H. HIGH MINUS 15. WIND CHILL NEAR MINUS 27. UV INDEX 1 OR LOW. TONIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 30. WIND CHILL MINUS 27 THIS EVENING AND MINUS 39 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..MAINLY SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 21. WIND CHILL MINUS 39 IN THE MORNING AND MINUS 29 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. HAY RIVER REGION INCLUDING ENTERPRISE. TODAY..INCREASING CLOUDINESS EARLY THIS MORNING. 60 PERCENT CHANCE OF FLURRIES THIS MORNING AND EARLY THIS AFTERNOON. WIND UP TO 15 KM/H. HIGH MINUS 14. WIND CHILL MINUS 29 THIS MORNING AND MINUS 22 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 26. WIND CHILL MINUS 22 THIS EVENING AND MINUS 34 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 20. WIND CHILL MINUS 34 IN THE MORNING AND MINUS 29 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE. TODAY..CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES EARLY THIS MORNING THEN A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 12. WIND CHILL MINUS 25 THIS MORNING AND MINUS 17 THIS AFTERNOON. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 27. WIND CHILL MINUS 19 THIS EVENING AND MINUS 32 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 16. WIND CHILL MINUS 32 IN THE MORNING AND MINUS 20 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TODAY..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES EARLY THIS MORNING. CLEARING EARLY THIS MORNING. WIND UP TO 15 KM/H. HIGH MINUS 14. WIND CHILL MINUS 35 THIS MORNING AND MINUS 22 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..CLEAR. INCREASING CLOUDINESS OVERNIGHT. WIND UP TO 15 KM/H. LOW MINUS 25. WIND CHILL MINUS 22 THIS EVENING AND MINUS 32 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..MAINLY CLOUDY. WIND UP TO 15 KM/H. HIGH MINUS 16. WIND CHILL MINUS 32 IN THE MORNING AND MINUS 22 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. HIGH MINUS 12. WIND CHILL NEAR MINUS 23. UV INDEX 1 OR LOW. TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. LOW MINUS 19. WIND CHILL MINUS 19 THIS EVENING AND MINUS 28 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. PERIODS OF LIGHT SNOW BEGINNING IN THE MORNING. WIND UP TO 15 KM/H. HIGH MINUS 13. WIND CHILL MINUS 28 IN THE MORNING AND MINUS 19 IN THE AFTERNOON. RISK OF FROSTBITE. YELLOWKNIFE REGION. TODAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES EARLY THIS MORNING. CLEARING THIS MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH MINUS 16. WIND CHILL MINUS 32 THIS MORNING AND MINUS 25 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 28. WIND CHILL MINUS 25 THIS EVENING AND MINUS 39 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..MAINLY SUNNY. WIND BECOMING NORTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH MINUS 21. WIND CHILL MINUS 41 IN THE MORNING AND MINUS 32 IN THE AFTERNOON. FROSTBITE IN MINUTES. UV INDEX 1 OR LOW. NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO. TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF FLURRIES EARLY THIS MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH MINUS 19. WIND CHILL MINUS 34 THIS MORNING AND MINUS 29 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..MAINLY CLOUDY. CLEARING OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40. LOW MINUS 29. WIND CHILL MINUS 29 THIS EVENING AND MINUS 41 OVERNIGHT. FROSTBITE IN MINUTES. SUNDAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON. HIGH MINUS 22. WIND CHILL MINUS 38 IN THE MORNING AND MINUS 27 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. WRIGLEY REGION. TODAY..MAINLY SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 17. WIND CHILL MINUS 35 THIS MORNING AND MINUS 24 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 27. WIND CHILL MINUS 24 THIS EVENING AND MINUS 33 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 16. WIND CHILL MINUS 36 IN THE MORNING AND MINUS 22 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. NORMAN WELLS - TULITA REGION. TODAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF FLURRIES LATE THIS AFTERNOON. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 THIS MORNING. HIGH MINUS 18. WIND CHILL MINUS 39 THIS MORNING AND MINUS 30 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT LATE THIS EVENING. LOW MINUS 25. WIND CHILL MINUS 30 THIS EVENING AND MINUS 35 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..MAINLY CLOUDY. WIND UP TO 15 KM/H. HIGH MINUS 18. WIND CHILL MINUS 35 IN THE MORNING AND MINUS 22 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. FORT GOOD HOPE REGION. TODAY..INCREASING CLOUDINESS EARLY THIS MORNING. 40 PERCENT CHANCE OF FLURRIES. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH MINUS 20. WIND CHILL MINUS 42 THIS MORNING AND MINUS 30 THIS AFTERNOON. FROSTBITE IN MINUTES. UV INDEX 1 OR LOW. TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT EARLY THIS EVENING. LOW MINUS 27. WIND CHILL MINUS 29 THIS EVENING AND MINUS 36 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. HIGH MINUS 19. WIND CHILL MINUS 36 IN THE MORNING AND MINUS 23 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. DELINE. TODAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF FLURRIES THIS AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H THIS MORNING. HIGH MINUS 18. WIND CHILL MINUS 38 THIS MORNING AND MINUS 28 THIS AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 28. WIND CHILL MINUS 28 THIS EVENING AND MINUS 37 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 19. WIND CHILL MINUS 37 IN THE MORNING AND MINUS 23 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. COLVILLE LAKE. TODAY..PERIODS OF LIGHT SNOW ENDING THIS AFTERNOON THEN CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH MINUS 20. WIND CHILL MINUS 42 THIS MORNING AND MINUS 30 THIS AFTERNOON. FROSTBITE IN MINUTES. UV INDEX 1 OR LOW. TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 29. WIND CHILL MINUS 30 THIS EVENING AND MINUS 39 OVERNIGHT. RISK OF FROSTBITE. SUNDAY..A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH MINUS 20. WIND CHILL MINUS 38 IN THE MORNING AND MINUS 27 IN THE AFTERNOON. RISK OF FROSTBITE. UV INDEX 1 OR LOW. END