519
FPCN11 CWNT 202130
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT
WEDNESDAY 20 MAY 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT THURSDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW PLUS 5.
THURSDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON
WITH 30 PERCENT CHANCE OF SHOWERS LATER IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. HIGH 18. UV INDEX 5 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 9.
LUTSEL K'E REGION.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING BEFORE MORNING. LOW PLUS 3.
THURSDAY..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. WIND BECOMING NORTHEAST 20 KM/H NEAR NOON. HIGH 11. UV
INDEX 5 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. LOW 8.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS
EVENING. CLEARING OVERNIGHT. RISK OF A THUNDERSTORM EARLY THIS
EVENING. LOW 6.
THURSDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON. HIGH 17. UV INDEX 4 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. CLEARING BEFORE MORNING. LOW 8.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. LOW
PLUS 5.
THURSDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. WIND
BECOMING SOUTH 20 KM/H NEAR NOON. HIGH 18. UV INDEX 5 OR MODERATE.
THURSDAY NIGHT..CLEARING NEAR MIDNIGHT. WIND SOUTHWEST 20 KM/H
BECOMING LIGHT IN THE EVENING. LOW 9.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..PARTLY CLOUDY. CLEARING LATE THIS EVENING. LOW PLUS 5.
THURSDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE MORNING.
HIGH 20. UV INDEX 3 OR MODERATE.
THURSDAY NIGHT..CLEAR. LOW 8.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
THURSDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 21.
UV INDEX 4 OR MODERATE.
THURSDAY NIGHT..A FEW CLOUDS. LOW 9.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
THURSDAY..A MIX OF SUN AND CLOUD. CLEARING NEAR NOON. WIND BECOMING
SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 21. UV INDEX 4
OR MODERATE.
THURSDAY NIGHT..CLEAR. LOW 9.
YELLOWKNIFE REGION.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING OVERNIGHT. LOW PLUS 5.
THURSDAY..INCREASING CLOUDINESS NEAR NOON. WIND BECOMING SOUTHEAST
20 KM/H NEAR NOON. HIGH 15. UV INDEX 4 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY. WIND EAST 20 KM/H BECOMING LIGHT
OVERNIGHT. LOW 7.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING THIS EVENING. LOW PLUS 4.
THURSDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. HIGH 17. UV
INDEX 4 OR MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY. LOW 6.
WRIGLEY REGION.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 11.
THURSDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING.
HIGH 19. UV INDEX 4 OR MODERATE.
THURSDAY NIGHT..CLEARING LATE IN THE EVENING. LOW PLUS 5.
NORMAN WELLS - TULITA REGION.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW 9.
THURSDAY..BECOMING A MIX OF SUN AND CLOUD IN THE MORNING WITH
60 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE
AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING
WEST 20 KM/H IN THE AFTERNOON. HIGH 14. UV INDEX 3 OR MODERATE.
THURSDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY IN THE EVENING. WIND WEST 20 KM/H BECOMING LIGHT
IN THE EVENING. LOW 7.
FORT GOOD HOPE REGION.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM EARLY THIS EVENING. LOW 7.
THURSDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE
AFTERNOON. HIGH 11. UV INDEX 1 OR LOW.
THURSDAY NIGHT..RAIN ENDING OVERNIGHT THEN CLOUDY. WIND WEST 20 KM/H
BECOMING LIGHT IN THE EVENING. LOW 6.
DELINE.
TONIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 7.
THURSDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON WITH
30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. HIGH 13. UV INDEX 4 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK
OF A THUNDERSTORM EARLY IN THE EVENING. LOW PLUS 5.
COLVILLE LAKE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT THEN
30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND SOUTH 20 KM/H BECOMING
LIGHT NEAR MIDNIGHT. LOW PLUS 4.
THURSDAY..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING.
RAIN BEGINNING IN THE MORNING. WIND SOUTHEAST 20 KM/H BECOMING LIGHT
NEAR NOON. HIGH 7. UV INDEX 1 OR LOW.
THURSDAY NIGHT..PERIODS OF RAIN ENDING AFTER MIDNIGHT THEN CLOUDY.
LOW PLUS 3.
END
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