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FPCN11 CWNT 181030
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 5:00 A.M. MDT
TUESDAY 18 AUGUST 2026 FOR TODAY AND WEDNESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS MORNING. HIGH 23.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW 13.
WEDNESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. LOCAL SMOKE IN THE AFTERNOON. WIND BECOMING NORTHWEST
20 KM/H IN THE AFTERNOON. HIGH 22. UV INDEX 5 OR MODERATE.
LUTSEL K'E REGION.
TODAY..SUNNY. INCREASING CLOUDINESS LATE THIS MORNING. HIGH 22. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOW 15.
WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN
THE MORNING. LOCAL SMOKE. HIGH 20. UV INDEX 4 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS MORNING. WIND
BECOMING SOUTHEAST 20 KM/H THIS AFTERNOON. HIGH 24. HUMIDEX 27. UV
INDEX 5 OR MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND
SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 15.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE MORNING. CLEARING IN THE MORNING. LOCAL SMOKE. WIND NORTHWEST
30 KM/H. HIGH 20. UV INDEX 4 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..CLEARING THIS MORNING. WIND SOUTH 20 KM/H BECOMING WEST 20
NEAR NOON. HIGH 26. HUMIDEX 29. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 30 PERCENT
CHANCE OF SHOWERS OVERNIGHT. WIND WEST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 16.
WEDNESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. 60 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF
A THUNDERSTORM LATE IN THE AFTERNOON. LOCAL SMOKE IN THE MORNING.
WIND NORTHWEST 30 KM/H BECOMING LIGHT IN THE MORNING. HIGH 22. UV
INDEX 4 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..CLEARING THIS MORNING. HIGH 27. HUMIDEX 29. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOCAL
SMOKE LATE THIS EVENING AND OVERNIGHT. LOW 14.
WEDNESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. LOCAL SMOKE IN THE MORNING.
HIGH 21. UV INDEX 3 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON. LOCAL
SMOKE. HIGH 27. HUMIDEX 28. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING AND
AFTER MIDNIGHT WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND
BECOMING SOUTH 20 KM/H NEAR MIDNIGHT. LOW 13.
WEDNESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTHWEST 20 KM/H IN
THE AFTERNOON. HIGH 24. UV INDEX 4 OR MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..SUNNY. WIND SOUTHWEST 20 KM/H. HIGH 26. HUMIDEX 28. UV INDEX 5
OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. WIND SOUTHWEST
20 KM/H BECOMING LIGHT OVERNIGHT. LOW 12.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 26.
HUMIDEX 27. UV INDEX 5 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..CLEARING. WIND SOUTHEAST 30 KM/H. HIGH 22. HUMIDEX 25. UV
INDEX 4 OR MODERATE.
TONIGHT..CLEAR EARLY THIS EVENING THEN PARTLY CLOUDY WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS EVENING. LOCAL SMOKE LATE THIS EVENING
AND OVERNIGHT. WIND SOUTH 30 KM/H BECOMING NORTHWEST 20 NEAR
MIDNIGHT. LOW 13.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
LOCAL SMOKE. WIND NORTHWEST 20 KM/H. HIGH 21. UV INDEX 4 OR
MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..A MIX OF SUN AND CLOUD. CLEARING NEAR NOON. LOCAL SMOKE LATE
THIS AFTERNOON. HIGH 24. HUMIDEX 27. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. LOCAL SMOKE. WIND
BECOMING NORTHWEST 20 KM/H THIS EVENING. LOW 11.
WEDNESDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON 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. LOCAL
SMOKE. HIGH 19. UV INDEX 4 OR MODERATE.
WRIGLEY REGION.
TODAY..SUNNY THIS MORNING THEN A MIX OF SUN AND CLOUD WITH 60 PERCENT
CHANCE OF SHOWERS THIS AFTERNOON. RISK OF A THUNDERSTORM THIS
AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H NEAR NOON. HIGH 23.
HUMIDEX 26. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H BECOMING LIGHT
THIS EVENING. LOW 11.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 21. UV INDEX 4 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..INCREASING CLOUDINESS EARLY THIS MORNING. 60 PERCENT CHANCE OF
SHOWERS WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 30 KM/H.
HIGH 19. UV INDEX 1 OR LOW.
TONIGHT..SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. WIND WEST
30 KM/H BECOMING LIGHT OVERNIGHT. LOW 12.
WEDNESDAY..SHOWERS ENDING NEAR NOON THEN A MIX OF SUN AND CLOUD. WIND
BECOMING WEST 20 KM/H IN THE MORNING. HIGH 18. UV INDEX 4 OR
MODERATE.
FORT GOOD HOPE REGION.
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. 30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK
OF A THUNDERSTORM. WIND WEST 30 KM/H. HIGH 22. UV INDEX 3 OR
MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H. LOW 11.
WEDNESDAY..A MIX OF SUN AND CLOUD. WIND WEST 20 KM/H BECOMING LIGHT
IN THE AFTERNOON. HIGH 18. UV INDEX 4 OR MODERATE.
DELINE.
TODAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS LATE THIS
MORNING AND EARLY THIS AFTERNOON WITH RISK OF A THUNDERSTORM. LOCAL
SMOKE THIS MORNING. WIND NORTHWEST 30 KM/H. HIGH 20. UV INDEX 3 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 30 KM/H BECOMING LIGHT NEAR
MIDNIGHT. LOW 9.
WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN
THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE MORNING.
HIGH 16. UV INDEX 4 OR MODERATE.
COLVILLE LAKE.
TODAY..CLEAR EARLY THIS MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS MORNING. LOCAL SMOKE THIS
MORNING. WIND BECOMING WEST 20 KM/H NEAR NOON. HIGH 19. UV INDEX 3
OR MODERATE.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 30 PERCENT CHANCE
OF SHOWERS LATE THIS EVENING AND OVERNIGHT. WIND WEST 20 KM/H.
LOW 10.
WEDNESDAY..A FEW SHOWERS ENDING IN THE AFTERNOON THEN CLEARING. WIND
NORTHWEST 20 KM/H. HIGH 14. UV INDEX 3 OR MODERATE.
END
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