063  
FPCN17 CWVR 212254  
FORECASTS FOR SOUTHEASTERN YUKON AND NORTHERN BRITISH COLUMBIA ISSUED  
BY ENVIRONMENT CANADA AT 4:00 P.M. MST THURSDAY 21 MAY 2026 FOR  
TONIGHT FRIDAY AND FRIDAY NIGHT.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MST FRIDAY.  
 
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MAJOR REFERENCE ELEVATIONS:  
DEASE LAKE: 800 METRES.  
JADE CITY: 915 METRES.  
MUNCHO LAKE: 837 METRES.  
TETSA RIVER: 804 METRES.  
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DEASE LAKE.  
TONIGHT..CLEAR. LOW ZERO.  
FRIDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGH 11. UV INDEX 4 OR MODERATE.  
FRIDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW  
PLUS 1.  
 
CASSIAR MOUNTAINS.  
TONIGHT..CLEAR. WIND UP TO 15 KM/H. LOW MINUS 2. WIND CHILL MINUS 4  
OVERNIGHT.  
FRIDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH  
40 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE  
AFTERNOON. HIGH 9. UV INDEX 4 OR MODERATE.  
FRIDAY NIGHT..PARTLY CLOUDY. WIND UP TO 15 KM/H. LOW MINUS 5. WIND  
CHILL MINUS 7 OVERNIGHT.  
 
WATSON LAKE.  
TONIGHT..CLEAR. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS  
EVENING. LOW PLUS 1.  
FRIDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH  
30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING WEST  
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 12. UV INDEX 4 OR  
MODERATE.  
FRIDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN  
THE EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE  
EVENING. LOW PLUS 1.  
 
MUNCHO LAKE PARK - STONE MOUNTAIN PARK.  
TONIGHT..A FEW CLOUDS. LOW PLUS 2.  
FRIDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS LATE IN  
THE AFTERNOON. HIGH 19. UV INDEX 5 OR MODERATE.  
FRIDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS IN THE  
EVENING THEN 60 PERCENT CHANCE OF FLURRIES OVERNIGHT. LOW MINUS 1.  
 
END  
 
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