FPCN11 CWNT 231654 FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT SUNDAY 23 AUGUST 2026 FOR TODAY AND MONDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT. THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE. TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 30. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW 13. MONDAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON. HIGH 24. HUMIDEX 25. UV INDEX 4 OR MODERATE. LUTSEL K'E REGION. TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND SOUTHEAST 20 KM/H BECOMING LIGHT NEAR NOON. HIGH 24. HUMIDEX 27. UV INDEX 3 OR MODERATE. TONIGHT..CLEARING THIS EVENING. LOW 13. MONDAY..SUNNY. WIND BECOMING WEST 30 KM/H NEAR NOON. HIGH 21. UV INDEX 3 OR MODERATE. FT. RESOLUTION REGION INCLUDING HWY. 6. TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS NEAR NOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H. HIGH 22. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW 12. MONDAY..SUNNY. WIND NORTHWEST 30 KM/H. HIGH 19. UV INDEX 4 OR MODERATE. HAY RIVER REGION INCLUDING ENTERPRISE. TODAY..SUNNY. WIND WEST 20 KM/H BECOMING LIGHT NEAR NOON. HIGH 25. HUMIDEX 26. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW 14. MONDAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H IN THE MORNING. HIGH 20. UV INDEX 4 OR MODERATE. FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE. TODAY..SUNNY. LOCAL SMOKE. HIGH 26. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW 11. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 21. UV INDEX 4 OR MODERATE. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TODAY..SUNNY. LOCAL SMOKE. WIND SOUTHWEST 20 KM/H. HIGH 27. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. LOCAL SMOKE. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. WIND BECOMING NORTH 30 NEAR MIDNIGHT. LOW 12. MONDAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. WIND NORTHWEST 20 KM/H. HIGH 21. UV INDEX 4 OR MODERATE. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TODAY..SUNNY. WIND SOUTHWEST 20 KM/H. HIGH 25. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOCAL SMOKE OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW 9. MONDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. LOCAL SMOKE. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE. YELLOWKNIFE REGION. TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS NEAR NOON. OTHERWISE SUNNY. LOCAL SMOKE LATE THIS AFTERNOON. WIND WEST 20 KM/H. HIGH 22. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOCAL SMOKE EARLY THIS EVENING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 12. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. LOCAL SMOKE IN THE MORNING. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO. TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS NEAR NOON. LOCAL SMOKE. WIND SOUTHEAST 20 KM/H BECOMING SOUTHWEST 20 THIS AFTERNOON. HIGH 22. UV INDEX 3 OR MODERATE. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOCAL SMOKE. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 11. MONDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. LOCAL SMOKE. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 16. UV INDEX 3 OR MODERATE. WRIGLEY REGION. TODAY..A MIX OF SUN AND CLOUD. WIND NORTHWEST 20 KM/H GUSTING TO 50. HIGH 22. UV INDEX 3 OR MODERATE. TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO 50. LOW 11. MONDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. CLEARING NEAR NOON. WIND NORTHWEST 20 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH 19. UV INDEX 3 OR MODERATE. NORMAN WELLS - TULITA REGION. TODAY..RAIN. AMOUNT 10 TO 15 MM. LOCAL SMOKE NEAR NOON. WIND WEST 30 KM/H GUSTING TO 50. TEMPERATURE STEADY NEAR 14. UV INDEX 1 OR LOW. TONIGHT..RAIN. AMOUNT 5 TO 10 MM. WIND WEST 40 KM/H GUSTING TO 60. LOW 7. MONDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. CLEARING NEAR NOON. WIND WEST 30 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE. FORT GOOD HOPE REGION. TODAY..RAIN. AMOUNT 15 TO 25 MM. LOCAL SMOKE NEAR NOON. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 16. UV INDEX 1 OR LOW. TONIGHT..RAIN ENDING THIS EVENING THEN CLOUDY. AMOUNT 5 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 7. MONDAY..A MIX OF SUN AND CLOUD. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE MORNING. HIGH 17. UV INDEX 3 OR MODERATE. DELINE. TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND BECOMING NORTHWEST 20 KM/H THIS AFTERNOON. HIGH 15. UV INDEX 1 OR LOW. TONIGHT..SHOWERS. AMOUNT 5 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 9. MONDAY..RAIN ENDING NEAR NOON THEN CLOUDY. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 13. UV INDEX 3 OR MODERATE. COLVILLE LAKE. TODAY..RAIN. AMOUNT 15 TO 25 MM. WIDESPREAD SMOKE NEAR NOON. WIND NORTH 30 KM/H GUSTING TO 50. TEMPERATURE STEADY NEAR 13. UV INDEX 1 OR LOW. TONIGHT..RAIN ENDING OVERNIGHT THEN CLOUDY. AMOUNT 5 MM. WIND NORTH 30 KM/H GUSTING TO 50. LOW 8. MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 14. UV INDEX 2 OR LOW. END