047
FPCN11 CWNT 192131
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 19 MAY 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..PARTLY CLOUDY. CLEARING THIS EVENING. WIND SOUTHEAST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 5.
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. HIGH 21. UV
INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM EARLY IN THE EVENING. LOW PLUS 5.
LUTSEL K'E REGION.
TONIGHT..PARTLY CLOUDY. LOW 7.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 14. UV INDEX 5 OR MODERATE.
WEDNESDAY NIGHT..BECOMING CLOUDY IN THE EVENING WITH 30 PERCENT
CHANCE OF SHOWERS LATE IN THE EVENING AND OVERNIGHT. LOW PLUS 4.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..PARTLY CLOUDY. LOW 6.
WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE
IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 15. UV INDEX 4 OR
MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN
THE EVENING. CLEARING OVERNIGHT. RISK OF A THUNDERSTORM EARLY IN THE
EVENING. LOW PLUS 5.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 8.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM IN THE AFTERNOON. HIGH 16. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING AND BEFORE MORNING. RISK OF A THUNDERSTORM EARLY IN THE
EVENING. LOW PLUS 5.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 10.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. CLEARING
LATE IN THE AFTERNOON. HIGH 18. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW 6.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTH
20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 8.
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 22. UV INDEX 4 OR
MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM EARLY IN THE
EVENING. LOW 11.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND WEST
20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 5.
WEDNESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 22. UV INDEX 4 OR
MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS
OVERNIGHT. LOW 11.
YELLOWKNIFE REGION.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT. WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 7.
WEDNESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15. UV
INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN
THE EVENING. CLEARING OVERNIGHT. LOW PLUS 5.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 7.
WEDNESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 14.
UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE
EVENING. LOW PLUS 5.
WRIGLEY REGION.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. CLEARING
BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW
PLUS 5.
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. HIGH 21. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING AND OVERNIGHT. LOW 10.
NORMAN WELLS - TULITA REGION.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
NORTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 4.
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. WIND
BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 21. UV
INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM EARLY IN THE EVENING. WIND SOUTHEAST 20 KM/H
GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 8.
FORT GOOD HOPE REGION.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING.
CLEARING LATE THIS EVENING. LOW PLUS 1.
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. HIGH 20. UV
INDEX 3 OR MODERATE.
WEDNESDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS.
RISK OF A THUNDERSTORM EARLY IN THE EVENING. LOW 8.
DELINE.
TONIGHT..PARTLY CLOUDY. CLEARING LATE THIS EVENING. WIND NORTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW MINUS 1.
WEDNESDAY..SUNNY. WIND BECOMING SOUTHEAST 20 KM/H IN THE AFTERNOON.
HIGH 11. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..INCREASING CLOUDINESS NEAR MIDNIGHT. WIND SOUTHEAST
20 KM/H. LOW 6.
COLVILLE LAKE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 6
OVERNIGHT.
WEDNESDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING.
WIND BECOMING SOUTHEAST 20 KM/H IN THE AFTERNOON. HIGH 10. WIND
CHILL MINUS 6 IN THE MORNING. UV INDEX 4 OR MODERATE.
WEDNESDAY NIGHT..INCREASING CLOUDINESS NEAR MIDNIGHT. WIND SOUTHEAST
20 KM/H. LOW PLUS 4.
END
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