503   
FPCN11 CWNT 220239 AAA  
UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS  
OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT  
7:38 P.M. MST SUNDAY 21 DECEMBER 2025 FOR TONIGHT MONDAY AND MONDAY  
NIGHT.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MST MONDAY.  
  
LUTSEL K'E REGION.  
TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 38. WIND CHILL NEAR  
 MINUS 48. FROSTBITE IN MINUTES.  
MONDAY..SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 30. WIND CHILL MINUS 49  
 IN THE MORNING AND MINUS 41 IN THE AFTERNOON. FROSTBITE IN MINUTES.  
MONDAY NIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 33. WIND  
 CHILL NEAR MINUS 45. FROSTBITE IN MINUTES.  
  
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.  
TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 39. WIND CHILL MINUS 49  
 THIS EVENING AND MINUS 42 OVERNIGHT. FROSTBITE IN MINUTES.  
MONDAY..SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 34. WIND CHILL MINUS 45  
 IN THE MORNING AND MINUS 40 IN THE AFTERNOON. FROSTBITE IN MINUTES.  
MONDAY NIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 39. WIND CHILL  
 NEAR MINUS 48. FROSTBITE IN MINUTES.  
  
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.  
TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 39. WIND CHILL MINUS 49  
 THIS EVENING AND MINUS 43 OVERNIGHT. FROSTBITE IN MINUTES.  
MONDAY..MAINLY SUNNY. WIND UP TO 15 KM/H. HIGH MINUS 31. WIND CHILL  
 MINUS 49 IN THE MORNING AND MINUS 41 IN THE AFTERNOON. FROSTBITE IN  
 MINUTES.  
MONDAY NIGHT..A FEW CLOUDS. WIND UP TO 15 KM/H. LOW MINUS 37. WIND  
 CHILL MINUS 41 IN THE EVENING AND MINUS 47 OVERNIGHT. FROSTBITE IN  
 MINUTES.  
  
COLVILLE LAKE.  
TONIGHT..PERIODS OF LIGHT SNOW. FOG PATCHES. WIND SOUTHWEST 20 KM/H  
 GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 29. WIND CHILL  
 MINUS 33 THIS EVENING AND MINUS 38 OVERNIGHT. RISK OF FROSTBITE.  
MONDAY..PERIODS OF LIGHT SNOW ENDING IN THE MORNING THEN CLEARING.  
 FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15 KM/H.  
 TEMPERATURE FALLING TO MINUS 33 IN THE AFTERNOON. WIND CHILL  
 MINUS 38 IN THE MORNING AND MINUS 43 IN THE AFTERNOON. FROSTBITE IN  
 MINUTES.  
MONDAY NIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 37. WIND CHILL  
 MINUS 43 IN THE EVENING AND MINUS 48 OVERNIGHT. FROSTBITE IN  
 MINUTES.  
  
REMAINDER UNCHANGED.  
  
END  
 
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