FPCN11 CWNT 181539 AAC UPDATED FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 9:38 A.M. MDT SATURDAY 18 JULY 2026 FOR TODAY AND SUNDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIDESPREAD SMOKE. WIND BECOMING NORTHEAST 20 KM/H THIS AFTERNOON. HIGH 29. HUMIDEX 33. UV INDEX 5 OR MODERATE. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 18. SUNDAY..WIDESPREAD SMOKE. HIGH 25. HUMIDEX 29. UV INDEX 5 OR MODERATE. REMAINDER UNCHANGED. END