539  
FPCN17 CWVR 151145  
FORECASTS FOR SOUTHEASTERN YUKON AND NORTHERN BRITISH COLUMBIA ISSUED  
BY ENVIRONMENT CANADA AT 5:00 A.M. MST MONDAY 15 SEPTEMBER 2025 FOR  
TODAY AND TUESDAY.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MST.  
 
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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.  
TODAY..INCREASING CLOUDINESS. PERIODS OF RAIN BEGINNING LATE THIS  
MORNING. HIGH 11. UV INDEX 1 OR LOW.  
TONIGHT..PERIODS OF RAIN. LOW 7.  
TUESDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 17. UV  
INDEX 3 OR MODERATE.  
 
CASSIAR MOUNTAINS.  
TODAY..INCREASING CLOUDINESS. 70 PERCENT CHANCE OF SHOWERS THIS  
AFTERNOON. HIGH 12. UV INDEX 2 OR LOW.  
TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS CHANGING TO 70 PERCENT  
CHANCE OF SHOWERS OVERNIGHT. LOW PLUS 5.  
TUESDAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO  
30 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING. WIND BECOMING  
SOUTH 20 KM/H IN THE AFTERNOON. HIGH 17. UV INDEX 2 OR LOW.  
 
WATSON LAKE.  
TODAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY THIS AFTERNOON WITH  
40 PERCENT CHANCE OF SHOWERS LATE THIS AFTERNOON. FOG DISSIPATING  
THIS MORNING. HIGH 13. UV INDEX 3 OR MODERATE.  
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING  
THEN PARTLY CLOUDY. LOW 6.  
TUESDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING.  
WIND BECOMING EAST 20 KM/H EARLY IN THE AFTERNOON. HIGH 17. UV  
INDEX 2 OR LOW.  
 
MUNCHO LAKE PARK - STONE MOUNTAIN PARK.  
TODAY..CLEARING THIS MORNING. FOG PATCHES THIS MORNING. HIGH 16. UV  
INDEX 3 OR MODERATE.  
TONIGHT..PARTLY CLOUDY. LOW PLUS 2.  
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 21. UV INDEX 3 OR MODERATE.  
 
END  
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