FPCN11 CWNT 172130 FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT FRIDAY 17 JULY 2026 FOR TONIGHT SATURDAY AND SATURDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT SATURDAY. THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE. TONIGHT..WIDESPREAD SMOKE. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 14. SATURDAY..WIDESPREAD SMOKE. HIGH 30. HUMIDEX 32. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE. LOW 17. LUTSEL K'E REGION. TONIGHT..CLEAR. LOCAL SMOKE BECOMING WIDESPREAD SMOKE OVERNIGHT. LOW 17. SATURDAY..WIDESPREAD SMOKE. HIGH 25. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE. LOW 16. FT. RESOLUTION REGION INCLUDING HWY. 6. TONIGHT..CLEAR. LOCAL SMOKE BECOMING WIDESPREAD SMOKE OVERNIGHT. LOW 14. SATURDAY..WIDESPREAD SMOKE. HIGH 31. HUMIDEX 34. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE. LOW 17. HAY RIVER REGION INCLUDING ENTERPRISE. TONIGHT..WIDESPREAD SMOKE. LOW 17. SATURDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIDESPREAD SMOKE. HIGH 31. HUMIDEX 34. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. LOW 16. FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE. TONIGHT..CLEAR. LOCAL SMOKE. LOW 17. SATURDAY..WIDESPREAD SMOKE. HIGH 33. HUMIDEX 35. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. LOW 16. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TONIGHT..WIDESPREAD SMOKE. LOW 16. SATURDAY..WIDESPREAD SMOKE. HIGH 31. HUMIDEX 34. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 NEAR MIDNIGHT. LOW 17. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TONIGHT..WIDESPREAD SMOKE. LOW 14. SATURDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. WIDESPREAD SMOKE. HIGH 33. HUMIDEX 36. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. WIND BECOMING NORTHEAST 20 KM/H GUSTING TO 40 OVERNIGHT. LOW 18. YELLOWKNIFE REGION. TONIGHT..CLEAR. LOCAL SMOKE. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 15. SATURDAY..WIDESPREAD SMOKE. WIND BECOMING SOUTHEAST 20 KM/H IN THE MORNING. HIGH 28. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 18. NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO. TONIGHT..PARTLY CLOUDY. CLEARING THIS EVENING. LOCAL SMOKE. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW 12. SATURDAY..WIDESPREAD SMOKE. WIND BECOMING SOUTHEAST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 30. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 13. WRIGLEY REGION. TONIGHT..CLEAR. LOCAL SMOKE BECOMING WIDESPREAD SMOKE THIS EVENING. LOW 13. SATURDAY..WIDESPREAD SMOKE. HIGH 29. HUMIDEX 32. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..BECOMING CLOUDY IN THE EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE IN THE EVENING AND OVERNIGHT. WIDESPREAD SMOKE. LOW 15. NORMAN WELLS - TULITA REGION. TONIGHT..CLEAR. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 12. SATURDAY..SUNNY. LOCAL SMOKE IN THE AFTERNOON. HIGH 26. HUMIDEX 29. UV INDEX 4 OR MODERATE. SATURDAY NIGHT..BECOMING CLOUDY IN THE EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE IN THE EVENING AND OVERNIGHT. LOCAL SMOKE IN THE EVENING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE EVENING. LOW 13. FORT GOOD HOPE REGION. TONIGHT..A FEW CLOUDS. LOW 11. SATURDAY..MAINLY SUNNY. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE. SATURDAY NIGHT..BECOMING CLOUDY IN THE EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE IN THE EVENING AND OVERNIGHT. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE EVENING. LOW 16. DELINE. TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 10. SATURDAY..SUNNY. WIDESPREAD SMOKE IN THE AFTERNOON. WIND BECOMING SOUTHEAST 20 KM/H IN THE AFTERNOON. HIGH 20. UV INDEX 4 OR MODERATE. SATURDAY NIGHT..WIDESPREAD SMOKE DISPERSING NEAR MIDNIGHT THEN A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 10. COLVILLE LAKE. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF DRIZZLE EARLY THIS EVENING. WIND WEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 10. SATURDAY..A MIX OF SUN AND CLOUD. HIGH 21. UV INDEX 4 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. LOW 13. END