640  
FPCN11 CWNT 211350 AAA  
UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS  
OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT  
7:49 A.M. MDT THURSDAY 21 MAY 2026 FOR TODAY AND FRIDAY.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT.  
 
LUTSEL K'E REGION.  
TODAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTHEAST 20 KM/H THIS  
AFTERNOON. HIGH 13. UV INDEX 5 OR MODERATE.  
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER  
MIDNIGHT. RISK OF A THUNDERSTORM EARLY THIS EVENING. WIND NORTHEAST  
20 KM/H BECOMING LIGHT THIS EVENING. LOW 7.  
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING.  
HIGH 17. UV INDEX 4 OR MODERATE.  
 
FT. RESOLUTION REGION INCLUDING HWY. 6.  
TODAY..A MIX OF SUN AND CLOUD. HIGH 19. UV INDEX 4 OR MODERATE.  
TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. RISK OF A  
THUNDERSTORM EARLY THIS EVENING. LOW 9.  
FRIDAY..CLEARING IN THE MORNING. HIGH 18. UV INDEX 4 OR MODERATE.  
 
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.  
TODAY..MAINLY CLOUDY. FOG PATCHES OVER NORTHEASTERN SECTIONS EARLY  
THIS MORNING. WIND NORTHEAST 20 KM/H BECOMING SOUTHEAST 20 NEAR  
NOON. HIGH 17. UV INDEX 4 OR MODERATE.  
TONIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. WIND SOUTHEAST  
20 KM/H BECOMING LIGHT THIS EVENING. LOW 7.  
FRIDAY..SUNNY. HIGH 17. UV INDEX 4 OR MODERATE.  
 
REMAINDER UNCHANGED.  
 
END  
 
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