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FPCN11 CWNT 041043
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 5:00 A.M. MDT
MONDAY 4 AUGUST 2025 FOR TODAY AND TUESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..INCREASING CLOUDINESS EARLY THIS MORNING. 30 PERCENT CHANCE OF
SHOWERS WITH RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. HIGH 26.
HUMIDEX 31. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND AFTER MIDNIGHT AND RISK OF A THUNDERSTORM. CLEARING BEFORE
MORNING. LOCAL SMOKE THIS EVENING. WIND BECOMING SOUTHWEST 20 KM/H
GUSTING TO 40 NEAR MIDNIGHT THEN LIGHT OVERNIGHT. LOW 14.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON.
HIGH 25. HUMIDEX 27. UV INDEX 5 OR MODERATE.
LUTSEL K'E REGION.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
MORNING AND THIS AFTERNOON WITH RISK OF A THUNDERSTORM. WIDESPREAD
SMOKE. HIGH 23. HUMIDEX 28. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. LOCAL SMOKE THIS EVENING AND AFTER MIDNIGHT. WIND
BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 OVERNIGHT. LOW 16.
TUESDAY..CLEARING IN THE MORNING. WIND BECOMING WEST 30 KM/H GUSTING
TO 50 NEAR NOON. HIGH 19. UV INDEX 5 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY THIS AFTERNOON WITH
30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. RISK OF A
THUNDERSTORM LATE THIS AFTERNOON. LOCAL SMOKE. HIGH 25. HUMIDEX 30.
UV INDEX 6 OR HIGH.
TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING AND
AFTER MIDNIGHT AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. WIND
BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 THEN LIGHT NEAR MIDNIGHT.
LOW 15.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 21. UV
INDEX 5 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND BECOMING
SOUTHEAST 20 KM/H THIS AFTERNOON. HIGH 26. HUMIDEX 31. UV INDEX 5 OR
MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. WIND SOUTHWEST
20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 12.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. WIND
BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 22. UV
INDEX 5 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY THIS AFTERNOON WITH A
FEW SHOWERS. RISK OF A THUNDERSTORM LATE THIS AFTERNOON. WIDESPREAD
SMOKE. HIGH 26. HUMIDEX 29. UV INDEX 5 OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING THIS EVENING THEN CLEARING. RISK OF A
THUNDERSTORM EARLY THIS EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO
40 BECOMING LIGHT THIS EVENING. LOW 12.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 NEAR NOON.
HIGH 22. UV INDEX 5 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR DRIZZLE.
RISK OF A THUNDERSTORM LATE THIS MORNING AND THIS AFTERNOON.
WIDESPREAD SMOKE THIS MORNING. WIND BECOMING SOUTH 20 KM/H GUSTING
TO 40 THIS AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
THIS EVENING. LOW 12.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND BECOMING
NORTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 18. UV INDEX 3 OR
MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. LOCAL SMOKE THIS MORNING. WIND BECOMING
SOUTHWEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 23. UV INDEX 5
OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
SOUTHWEST 20 KM/H GUSTING TO 40. LOW 13.
TUESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H BECOMING LIGHT
IN THE MORNING. HIGH 23. HUMIDEX 25. UV INDEX 5 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..WIDESPREAD SMOKE. HIGH 21. HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS THIS EVENING
WITH RISK OF A THUNDERSTORM. LOCAL SMOKE. WIND BECOMING SOUTH
20 KM/H THIS EVENING. LOW 14.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 IN THE
MORNING. HIGH 20. UV INDEX 4 OR MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS AFTERNOON
WITH RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. HIGH 21. UV INDEX 5
OR MODERATE.
TONIGHT..A FEW SHOWERS ENDING OVERNIGHT THEN PARTLY CLOUDY. RISK OF A
THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. LOCAL SMOKE. WIND
BECOMING SOUTHEAST 20 KM/H THIS EVENING THEN BECOMING SOUTHWEST 20
GUSTING TO 40. LOW 11.
TUESDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING
TO 40 NEAR NOON. HIGH 16. UV INDEX 3 OR MODERATE.
WRIGLEY REGION.
TODAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS MORNING.
SHOWERS BEGINNING THIS AFTERNOON. RISK OF A THUNDERSTORM. HIGH 19.
UV INDEX 4 OR MODERATE.
TONIGHT..PERIODS OF RAIN WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO
25 MM. LOW 14.
TUESDAY..RAIN ENDING IN THE MORNING THEN A MIX OF SUN AND CLOUD. WIND
BECOMING NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 16. UV
INDEX 5 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS AFTERNOON. HIGH 22. HUMIDEX 25. UV INDEX 3 OR
MODERATE.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. WIND BECOMING NORTHWEST 20 KM/H
OVERNIGHT. LOW 8.
TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING.
CLEARING IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50.
HIGH 16. UV INDEX 4 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS THIS
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H
THIS AFTERNOON. HIGH 26. HUMIDEX 29. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE.
RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND NORTHWEST 30 KM/H
GUSTING TO 50. LOW 7.
TUESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE
IN THE MORNING. CLEARING NEAR NOON. WIND NORTHWEST 30 KM/H GUSTING
TO 50 BECOMING LIGHT NEAR NOON. HIGH 15. UV INDEX 4 OR MODERATE.
DELINE.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS EVENING. WIND NORTHEAST 20 KM/H BECOMING LIGHT
NEAR MIDNIGHT. LOW 10.
TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING.
CLEARING IN THE AFTERNOON. WIND BECOMING NORTHWEST 40 KM/H GUSTING
TO 60 IN THE MORNING. HIGH 14. UV INDEX 4 OR MODERATE.
COLVILLE LAKE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 23. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE.
WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 OVERNIGHT. LOW PLUS 5.
TUESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE
EARLY IN THE MORNING. CLEARING NEAR NOON. WIND NORTH 40 KM/H GUSTING
TO 60 BECOMING NORTHWEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 11.
UV INDEX 3 OR MODERATE.
END
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