805
FPCN11 CWNT 191631
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT
TUESDAY 19 MAY 2026 FOR TODAY AND WEDNESDAY.
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. HIGH 20. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. LOW PLUS 5.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
HIGH 20. UV INDEX 4 OR MODERATE.
LUTSEL K'E REGION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOW PLUS 3.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 10. UV INDEX 5 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..A MIX OF SUN AND CLOUD. WIND SOUTHEAST 20 KM/H BECOMING LIGHT
THIS AFTERNOON. HIGH 17. UV INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW 6.
WEDNESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 12. UV INDEX 4 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 19. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 7.
WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN
THE AFTERNOON. HIGH 15. UV INDEX 4 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 20. UV INDEX 4 OR
MODERATE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. LOW 9.
WEDNESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING
AND EARLY IN THE AFTERNOON. HIGH 17. UV INDEX 4 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..BECOMING CLOUDY THIS AFTERNOON WITH 30 PERCENT CHANCE OF
SHOWERS LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE THIS
AFTERNOON. HIGH 18. UV INDEX 4 OR MODERATE.
TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. LOW 8.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 21. UV INDEX 4 OR MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..MAINLY SUNNY. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS AFTERNOON. HIGH 18. UV INDEX 4 OR MODERATE.
TONIGHT..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS LATE
THIS EVENING AND OVERNIGHT. LOW 9.
WEDNESDAY..CLEARING IN THE MORNING. HIGH 23. UV INDEX 4 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..A MIX OF SUN AND CLOUD. WIND SOUTHEAST 20 KM/H. HIGH 17. UV
INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW 7.
WEDNESDAY..MAINLY CLOUDY. WIND BECOMING NORTH 20 KM/H NEAR NOON.
HIGH 16. UV INDEX 4 OR MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..A MIX OF SUN AND CLOUD. HIGH 15. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW 7.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON.
HIGH 14. UV INDEX 4 OR MODERATE.
WRIGLEY REGION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 19. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
FOG PATCHES DEVELOPING OVERNIGHT. LOW 6.
WEDNESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 21. UV
INDEX 4 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 13. UV INDEX 4
OR MODERATE.
TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING
LIGHT THIS EVENING. LOW PLUS 3.
WEDNESDAY..MAINLY SUNNY. WIND BECOMING SOUTHEAST 20 KM/H NEAR NOON.
HIGH 21. UV INDEX 4 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 12. UV
INDEX 3 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. LOW PLUS 2.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
HIGH 21. UV INDEX 3 OR MODERATE.
DELINE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..CLEARING LATE THIS EVENING. WIND NORTHWEST 20 KM/H BECOMING
LIGHT THIS EVENING. LOW MINUS 1.
WEDNESDAY..SUNNY. HIGH 11. UV INDEX 4 OR MODERATE.
COLVILLE LAKE.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
NORTHEAST 20 KM/H. HIGH 8. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW
MINUS 2. WIND CHILL MINUS 5 OVERNIGHT.
WEDNESDAY..SUNNY. WIND UP TO 15 KM/H. HIGH 10. WIND CHILL MINUS 4 IN
THE MORNING. UV INDEX 4 OR MODERATE.
END
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