897
FPCN11 CWNT 191655
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT
WEDNESDAY 19 AUGUST 2026 FOR TODAY AND THURSDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS NEAR NOON. BECOMING A MIX
OF SUN AND CLOUD THIS AFTERNOON. LOCAL SMOKE. WIND NORTHWEST
20 KM/H. HIGH 22. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND AFTER MIDNIGHT WITH RISK OF A THUNDERSTORM. LOCAL SMOKE.
WIND NORTHWEST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW 11.
THURSDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY NEAR NOON. LOCAL
SMOKE. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.
HIGH 19. UV INDEX 4 OR MODERATE.
LUTSEL K'E REGION.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS NEAR NOON THEN A MIX
OF SUN AND CLOUD. LOCAL SMOKE. WIND NORTHWEST 20 KM/H. HIGH 21. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND AFTER MIDNIGHT WITH RISK OF A THUNDERSTORM. LOCAL SMOKE.
WIND NORTHWEST 20 KM/H. LOW 11.
THURSDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
MORNING AND IN THE AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 17. UV INDEX 3 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..MAINLY SUNNY. LOCAL SMOKE. WIND NORTHWEST 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS AFTERNOON. HIGH 21. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. LOW 12.
THURSDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. LOCAL SMOKE.
WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING.
HIGH 18. UV INDEX 4 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..INCREASING CLOUDINESS LATE THIS AFTERNOON. LOCAL SMOKE. WIND
NORTHWEST 20 KM/H BECOMING LIGHT NEAR NOON. HIGH 23. HUMIDEX 25. UV
INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. LOCAL SMOKE. LOW 11.
THURSDAY..MAINLY SUNNY. LOCAL SMOKE EARLY IN THE MORNING. WIND
BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 21. UV
INDEX 4 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND BECOMING
NORTHWEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 23. HUMIDEX 25.
UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND NORTHWEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 9.
THURSDAY..MAINLY SUNNY. LOCAL SMOKE. WIND BECOMING NORTHWEST 20 KM/H
NEAR NOON. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
WIDESPREAD SMOKE. WIND NORTHWEST 20 KM/H. HIGH 25. HUMIDEX 26. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING AND
AFTER MIDNIGHT. WIDESPREAD SMOKE. LOW 14.
THURSDAY..WIDESPREAD SMOKE. HIGH 25. HUMIDEX 26. UV INDEX 4 OR
MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. HIGH 26. HUMIDEX 28. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. LOCAL SMOKE. LOW 10.
THURSDAY..SUNNY. LOCAL SMOKE IN THE MORNING. HIGH 26. HUMIDEX 28. UV
INDEX 5 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A THUNDERSTORM LATE
THIS AFTERNOON. LOCAL SMOKE. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 22. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND NORTHWEST 20 KM/H
GUSTING TO 40. LOW 10.
THURSDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. LOCAL SMOKE.
WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 18. UV INDEX 4 OR
MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND
NORTHWEST 30 KM/H GUSTING TO 50. HIGH 20. UV INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. LOCAL SMOKE. WIND NORTHWEST 30 KM/H
GUSTING TO 50. LOW 10.
THURSDAY..A MIX OF SUN AND CLOUD. CLEARING NEAR NOON. LOCAL SMOKE.
WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR NOON.
HIGH 20. UV INDEX 4 OR MODERATE.
WRIGLEY REGION.
TODAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21. UV INDEX 3
OR MODERATE.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING
THEN PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW 10.
THURSDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. LOCAL
SMOKE IN THE AFTERNOON. WIND BECOMING SOUTHEAST 20 KM/H NEAR NOON.
HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..SHOWERS ENDING NEAR NOON THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS. WIND WEST 20 KM/H GUSTING TO 40.
HIGH 19. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. WIND WEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT THIS EVENING. LOW 9.
THURSDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 23. HUMIDEX 25. UV INDEX 4 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND WEST
20 KM/H GUSTING TO 40. HIGH 19. UV INDEX 3 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 11.
THURSDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 21. UV INDEX 4 OR MODERATE.
DELINE.
TODAY..A FEW SHOWERS ENDING THIS AFTERNOON THEN CLEARING. WIND
NORTHWEST 30 KM/H GUSTING TO 50. HIGH 17. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING
LIGHT THIS EVENING. LOW 7.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 18. UV INDEX 4 OR MODERATE.
COLVILLE LAKE.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND WEST 20 KM/H
GUSTING TO 40. HIGH 14. UV INDEX 1 OR LOW.
TONIGHT..CLEARING THIS EVENING. INCREASING CLOUDINESS BEFORE MORNING.
LOW 8.
THURSDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 16. UV
INDEX 2 OR LOW.
END
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