111
FPCN11 CWNT 152133
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT
MONDAY 15 SEPTEMBER 2025 FOR TONIGHT TUESDAY AND TUESDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT TUESDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TONIGHT..RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE
OF DRIZZLE. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL SMOKE
THIS EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT
THIS EVENING. LOW 10.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF DRIZZLE EARLY
IN THE MORNING. CLEARING IN THE AFTERNOON. HIGH 18. UV INDEX 3 OR
MODERATE.
TUESDAY NIGHT..CLEAR. LOW 9.
LUTSEL K'E REGION.
TONIGHT..RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE
OF DRIZZLE. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL SMOKE
THIS EVENING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 EARLY
THIS EVENING THEN LIGHT OVERNIGHT. LOW 9.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF DRIZZLE EARLY IN THE
MORNING. CLEARING NEAR NOON. HIGH 14. UV INDEX 1 OR LOW.
TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. LOW 9.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..RAIN ENDING THIS EVENING THEN MAINLY CLOUDY WITH 30 PERCENT
CHANCE OF DRIZZLE. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL
SMOKE EARLY THIS EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT NEAR MIDNIGHT. LOW 11.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF DRIZZLE
EARLY IN THE MORNING. CLEARING IN THE MORNING. HIGH 18. UV INDEX 3
OR MODERATE.
TUESDAY NIGHT..A FEW CLOUDS. LOW 10.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..PERIODS OF DRIZZLE ENDING THIS EVENING THEN CLEARING. LOCAL
SMOKE BECOMING FOG PATCHES OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 7.
TUESDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 20. UV INDEX 3 OR MODERATE.
TUESDAY NIGHT..A FEW CLOUDS. LOW 10.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF DRIZZLE EARLY THIS EVENING.
CLEARING THIS EVENING. LOCAL SMOKE BECOMING FOG PATCHES OVERNIGHT.
LOW 6.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. FOG
PATCHES BECOMING LOCAL SMOKE IN THE MORNING. HIGH 22. UV INDEX 3 OR
MODERATE.
TUESDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR IN THE EVENING. LOCAL
SMOKE. LOW 7.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..MAINLY CLOUDY. CLEARING LATE THIS EVENING. LOCAL SMOKE
BECOMING FOG PATCHES OVERNIGHT. LOW 6.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. FOG
PATCHES BECOMING LOCAL SMOKE IN THE MORNING. HIGH 19. UV INDEX 3 OR
MODERATE.
TUESDAY NIGHT..A FEW CLOUDS. LOCAL SMOKE. LOW 8.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. FOG PATCHES
DEVELOPING OVERNIGHT. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 19. UV INDEX 3 OR MODERATE.
TUESDAY NIGHT..A FEW CLOUDS. LOW 7.
YELLOWKNIFE REGION.
TONIGHT..PERIODS OF RAIN ENDING EARLY THIS EVENING THEN CLOUDY. LOCAL
SMOKE EARLY THIS EVENING. FOG PATCHES OVERNIGHT. LOW 9.
TUESDAY..CLEARING IN THE MORNING. FOG PATCHES DISSIPATING IN THE
MORNING. WIND BECOMING SOUTH 20 KM/H IN THE AFTERNOON. HIGH 16. UV
INDEX 2 OR LOW.
TUESDAY NIGHT..PARTLY CLOUDY. WIND SOUTH 20 KM/H BECOMING LIGHT IN
THE EVENING. LOW 10.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOCAL SMOKE
BECOMING FOG PATCHES OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40
BECOMING LIGHT NEAR MIDNIGHT. LOW PLUS 5.
TUESDAY..A MIX OF SUN AND CLOUD. FOG PATCHES BECOMING LOCAL SMOKE IN
THE MORNING. WIND BECOMING SOUTH 20 KM/H IN THE AFTERNOON. HIGH 17.
UV INDEX 2 OR LOW.
TUESDAY NIGHT..PARTLY CLOUDY. LOCAL SMOKE BECOMING FOG PATCHES
OVERNIGHT. WIND SOUTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 6.
WRIGLEY REGION.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW 7.
TUESDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 20. UV INDEX 2 OR LOW.
TUESDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR OVERNIGHT. LOW 7.
NORMAN WELLS - TULITA REGION.
TONIGHT..PARTLY CLOUDY. WIND SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING
LIGHT NEAR MIDNIGHT. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING.
HIGH 18. UV INDEX 2 OR LOW.
TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW 9.
FORT GOOD HOPE REGION.
TONIGHT..MAINLY CLOUDY. LOW 7.
TUESDAY..CLEARING LATE IN THE MORNING. HIGH 17. UV INDEX 2 OR LOW.
TUESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW
PLUS 5.
DELINE.
TONIGHT..PARTLY CLOUDY. WIND BECOMING EAST 20 KM/H GUSTING TO 40 THIS
EVENING. LOW PLUS 5.
TUESDAY..CLEARING LATE IN THE MORNING. WIND EAST 20 KM/H GUSTING TO
40 BECOMING LIGHT NEAR NOON. HIGH 15. UV INDEX 2 OR LOW.
TUESDAY NIGHT..A FEW CLOUDS. LOW PLUS 5.
COLVILLE LAKE.
TONIGHT..PARTLY CLOUDY. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40
THIS EVENING. LOW PLUS 5.
TUESDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
MORNING. CLEARING IN THE AFTERNOON. WIND SOUTHEAST 20 KM/H GUSTING
TO 40. HIGH 13. UV INDEX 1 OR LOW.
TUESDAY NIGHT..CLEAR. LOW 6.
END
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