647
FPCN11 CWNT 152130
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT
TUESDAY 15 SEPTEMBER 2026 FOR TONIGHT WEDNESDAY AND WEDNESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT
WEDNESDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 9. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS
OVERNIGHT. LOW PLUS 4.
LUTSEL K'E REGION.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND BECOMING NORTHWEST 20 KM/H EARLY THIS EVENING. LOW
PLUS 2.
WEDNESDAY..A MIX OF SUN AND CLOUD. CLEARING LATE IN THE AFTERNOON.
WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE MORNING. HIGH 6. UV
INDEX 2 OR LOW.
WEDNESDAY NIGHT..CLEAR EARLY IN THE EVENING THEN PARTLY CLOUDY WITH
30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND BECOMING SOUTH 20 KM/H
OVERNIGHT. LOW PLUS 2.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO
30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS NEAR MIDNIGHT. WIND
NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT OVERNIGHT. LOW
PLUS 2.
WEDNESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTHEAST 20 KM/H IN
THE AFTERNOON. HIGH 9. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE IN
THE EVENING AND OVERNIGHT. WIND SOUTHEAST 20 KM/H. LOW PLUS 3.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 EARLY THIS
EVENING THEN LIGHT OVERNIGHT. LOW MINUS 3. WIND CHILL MINUS 8
OVERNIGHT.
WEDNESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTHEAST 20 KM/H IN
THE AFTERNOON. HIGH 9. WIND CHILL MINUS 8 IN THE MORNING. UV INDEX 2
OR LOW.
WEDNESDAY NIGHT..CLOUDY. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. WIND
SOUTHEAST 20 KM/H. TEMPERATURE STEADY NEAR 7.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING BEFORE MORNING. WIND UP TO 15 KM/H. LOW MINUS 6.
WIND CHILL MINUS 8 OVERNIGHT.
WEDNESDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON.
WIND UP TO 15 KM/H. HIGH 9. WIND CHILL MINUS 8 IN THE MORNING. UV
INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE EVENING.
BECOMING PARTLY CLOUDY OVERNIGHT. LOW PLUS 4.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHWEST 20 KM/H
BECOMING LIGHT EARLY THIS EVENING. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 10. UV INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS
EARLY IN THE EVENING. CLEARING NEAR MIDNIGHT. FOG PATCHES OVERNIGHT.
LOW PLUS 3.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
WIND NORTHEAST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW
PLUS 2.
WEDNESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTHWEST 20 KM/H IN
THE MORNING. HIGH 19. UV INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..CLEAR. FOG PATCHES OVERNIGHT. WIND SOUTHWEST 20 KM/H
BECOMING LIGHT NEAR MIDNIGHT. LOW 8.
YELLOWKNIFE REGION.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
CLEARING NEAR MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT OVERNIGHT. LOW MINUS 2. WIND CHILL MINUS 6 OVERNIGHT.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHEAST 30 KM/H IN THE AFTERNOON.
HIGH 8. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS
OVERNIGHT. WIND SOUTHEAST 30 KM/H. LOW PLUS 4.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. 30 PERCENT CHANCE OF WET SNOW OVER NORTHEASTERN SECTIONS
EARLY THIS EVENING. CLEARING THIS EVENING. WIND NORTHWEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 4. WIND CHILL
MINUS 8 OVERNIGHT.
WEDNESDAY..SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON. WIND
BECOMING SOUTHEAST 20 KM/H IN THE MORNING. HIGH 8. WIND CHILL
MINUS 8 IN THE MORNING. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE EVENING AND OVERNIGHT. 30 PERCENT CHANCE OF WET SNOW OVER
NORTHEASTERN SECTIONS OVERNIGHT. WIND SOUTHEAST 20 KM/H BECOMING
LIGHT NEAR MIDNIGHT. LOW PLUS 3.
WRIGLEY REGION.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING LATE THIS EVENING. LOW PLUS 1.
WEDNESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. HIGH 10. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS
EARLY IN THE EVENING. CLEARING NEAR MIDNIGHT. FOG PATCHES OVERNIGHT.
LOW PLUS 2.
NORMAN WELLS - TULITA REGION.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. WIND EAST
20 KM/H. LOW PLUS 3.
WEDNESDAY..MAINLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT IN THE
AFTERNOON. HIGH 12. UV INDEX 1 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE EVENING AND OVERNIGHT. LOW PLUS 5.
FORT GOOD HOPE REGION.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. WIND SOUTHEAST
20 KM/H BECOMING LIGHT THIS EVENING. LOW ZERO.
WEDNESDAY..CLOUDY. SHOWERS BEGINNING IN THE MORNING. HIGH 11. UV
INDEX 1 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS
OVERNIGHT. WIND BECOMING SOUTHWEST 20 KM/H IN THE EVENING. LOW 6.
DELINE.
TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. WIND NORTHWEST
20 KM/H BECOMING SOUTHEAST 20 NEAR MIDNIGHT. LOW MINUS 1.
WEDNESDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND SOUTHEAST 20 KM/H. HIGH 8. UV INDEX 2 OR LOW.
WEDNESDAY NIGHT..MAINLY CLOUDY. LOW PLUS 4.
COLVILLE LAKE.
TONIGHT..CLEARING THIS EVENING. LOW MINUS 1.
WEDNESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 7. UV INDEX 1 OR LOW.
WEDNESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS.
TEMPERATURE STEADY NEAR 6.
END
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