FPCN11 CWNT 211616 AAB UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 10:15 A.M. MDT MONDAY 21 APRIL 2025 FOR TODAY AND TUESDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. HIGH 12. UV INDEX 3 OR MODERATE. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF RAIN SHOWERS EARLY THIS EVENING. A FEW FLURRIES BEGINNING THIS EVENING. LOCAL SNOWFALL AMOUNT 2 TO 4 CM. WIND UP TO 15 KM/H. LOW MINUS 4. WIND CHILL MINUS 6 OVERNIGHT. TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES IN THE MORNING THEN A MIX OF SUN AND CLOUD. WIND UP TO 15 KM/H. HIGH 11. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 3 OR MODERATE. COLVILLE LAKE. TODAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF FLURRIES THIS AFTERNOON. WIND SOUTHWEST 20 KM/H. HIGH MINUS 10. WIND CHILL NEAR MINUS 22. UV INDEX 2 OR LOW. TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW MINUS 14. WIND CHILL NEAR MINUS 18. TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND UP TO 15 KM/H. HIGH MINUS 10. WIND CHILL MINUS 20 IN THE MORNING AND MINUS 15 IN THE AFTERNOON. UV INDEX 2 OR LOW. REMAINDER UNCHANGED. END