353  
WWCN11 CWNT 290714  
YELLOW WATCH - SEVERE THUNDERSTORM  
FOR THE GREAT SLAVE AND UPPER MACKENZIE AREAS  
UPDATED BY ENVIRONMENT CANADA  
AT 1:14 A.M. MDT MONDAY 29 JUNE 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:  
COLVILLE LAKE.  
 
YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:  
NORMAN WELLS - TULITA REGION.  
 
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IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE  
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS,  
LARGE HAIL AND HEAVY RAIN.  
 
WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND  
INJURES CANADIANS EVERY YEAR. HEAVY RAIN CAN CAUSE FLASH FLOODING  
AND SIGNIFICANT REDUCTIONS TO VISIBILITY. STRONG WIND GUSTS CAN  
DAMAGE TREES, BUILDINGS AND OVERTURN VEHICLES. LARGE HAIL CAN CAUSE  
SIGNIFICANT DAMAGE AND INJURY.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO  
NTSTORM(AT)EC.GC.CA, CALL 1-800-239-0484 OR POST REPORTS ON X USING  
(HASH)NTSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/PASPC  
 
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