FPCN11 CWNT 171630 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 17 MAY 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..SUNNY. HIGH 9. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT. MONDAY..SUNNY. HIGH 15. UV INDEX 4 OR MODERATE. LUTSEL K'E REGION. TODAY..SUNNY. WIND UP TO 15 KM/H. HIGH PLUS 2. WIND CHILL MINUS 5 THIS MORNING. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 5. WIND CHILL MINUS 11 OVERNIGHT. MONDAY..SUNNY. WIND UP TO 15 KM/H. HIGH 11. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 4 OR MODERATE. FT. RESOLUTION REGION INCLUDING HWY. 6. TODAY..SUNNY. HIGH 10. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW ZERO. MONDAY..SUNNY. WIND BECOMING SOUTHEAST 20 KM/H IN THE MORNING. HIGH 15. UV INDEX 4 OR MODERATE. HAY RIVER REGION INCLUDING ENTERPRISE. TODAY..SUNNY. WIND BECOMING NORTHEAST 20 KM/H LATE THIS AFTERNOON. HIGH 6. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 2. MONDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING. WIND BECOMING SOUTHEAST 20 KM/H NEAR NOON. HIGH 19. UV INDEX 5 OR MODERATE. FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE. TODAY..MAINLY SUNNY. HIGH 10. UV INDEX 4 OR MODERATE. TONIGHT..A FEW CLOUDS. LOW PLUS 2. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 20. UV INDEX 5 OR MODERATE. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TODAY..SUNNY. HIGH 18. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOW 7. MONDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. HIGH 23. UV INDEX 5 OR MODERATE. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TODAY..SUNNY. HIGH 22. UV INDEX 5 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW 6. MONDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING. HIGH 22. UV INDEX 5 OR MODERATE. YELLOWKNIFE REGION. TODAY..SUNNY. HIGH 7. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW ZERO. MONDAY..SUNNY. WIND SOUTHEAST 30 KM/H. HIGH 14. UV INDEX 4 OR MODERATE. NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO. TODAY..SUNNY. HIGH 11. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. LOW PLUS 1. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. HIGH 14. UV INDEX 4 OR MODERATE. WRIGLEY REGION. TODAY..SUNNY. WIND SOUTHEAST 20 KM/H. HIGH 20. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. WIND SOUTHEAST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW 7. MONDAY..CLEARING IN THE MORNING. HIGH 20. UV INDEX 4 OR MODERATE. NORMAN WELLS - TULITA REGION. TODAY..SUNNY. WIND SOUTHEAST 20 KM/H. HIGH 20. UV INDEX 4 OR MODERATE. TONIGHT..A FEW CLOUDS. WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 3. MONDAY..MAINLY SUNNY. HIGH 20. UV INDEX 4 OR MODERATE. FORT GOOD HOPE REGION. TODAY..SUNNY. HIGH 21. UV INDEX 3 OR MODERATE. TONIGHT..CLEAR. LOW 7. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. HIGH 21. UV INDEX 4 OR MODERATE. DELINE. TODAY..SUNNY. WIND EAST 20 KM/H GUSTING TO 40. HIGH 16. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR EARLY THIS EVENING THEN PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING. WIND EAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 2. MONDAY..MAINLY SUNNY. HIGH 14. UV INDEX 4 OR MODERATE. COLVILLE LAKE. TODAY..SUNNY. WIND SOUTH 20 KM/H GUSTING TO 40. HIGH 10. UV INDEX 4 OR MODERATE. TONIGHT..CLEAR. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 3. MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. HIGH 11. UV INDEX 4 OR MODERATE. END