691  
WUCN11 CWTO 122022  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 4:22 P.M. EDT WEDNESDAY 12 AUGUST 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
OTTAWA NORTH - KANATA - ORLEANS  
GATINEAU  
PRESCOTT AND RUSSELL.  
 
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IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 4:58 P.M. EDT.  
 
AT 4:19 P.M. EDT, A SEVERE THUNDERSTORM IS LOCATED NEAR  
BUCKINGHAM. THIS SEVERE THUNDERSTORM IS MOVING SOUTHEAST AT 40  
KM/H. DAMAGING WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN  
ARE POSSIBLE.  
 
LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: ORLEANS,  
CLARENCE-ROCKLAND  
 
THERE IS A RISK OF A TORNADO.  
 
TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE,  
PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL.  
 
SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING  
THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN.  
 
LOCAL UTILITY OUTAGES ARE LIKELY. HEAVY RAIN MAY CAUSE FLASH  
FLOODING AND SIGNIFICANT REDUCTIONS TO VISIBILITY.  
 
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.  
 
EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER  
IMMEDIATELY IF THREATENING WEATHER APPROACHES.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA.  
 
TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO  
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON SOCIAL MEDIA USING  
(HASH)ONSTORM. TO REPORT SEVERE WEATHER IN GATINEAU, SEND AN EMAIL  
TO ONSTORM(AT)EC.GC.CA OR POST REPORTS ON SOCIAL MEDIA USING  
(HASH)QCSTORM.  
 
FOR MORE INFORMATION:  
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
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