904  
WWCN11 CWTO 181010  
EXTREME COLD WARNING  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 5:10 A.M. EST TUESDAY 18 FEBRUARY 2025.  
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EXTREME COLD WARNING FOR:  
WINDSOR - ESSEX - CHATHAM-KENT  
SARNIA - LAMBTON  
ELGIN  
LONDON - MIDDLESEX  
SIMCOE - DELHI - NORFOLK  
DUNNVILLE - CALEDONIA - HALDIMAND  
OXFORD - BRANT.  
 
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==DISCUSSION==  
 
A PERIOD OF VERY COLD WIND CHILLS IS EXPECTED.  
 
WHAT:  
WIND CHILL VALUES NEAR MINUS 30.  
 
WHEN:  
EARLY THIS MORNING. WIND CHILL VALUES WILL MODERATE LATER THIS  
MORNING WITH DAY TIME HEATING.  
 
EXTREME COLD PUTS EVERYONE AT RISK.  
 
RISKS ARE GREATER FOR YOUNG CHILDREN, OLDER ADULTS, PEOPLE WITH  
CHRONIC ILLNESSES, PEOPLE WORKING OR EXERCISING OUTDOORS, AND THOSE  
WITHOUT PROPER SHELTER.  
 
WATCH FOR COLD RELATED SYMPTOMS: SHORTNESS OF BREATH, CHEST PAIN,  
MUSCLE PAIN AND WEAKNESS, NUMBNESS AND COLOUR CHANGE IN FINGERS AND  
TOES.  
 
COVER UP. FROSTBITE CAN DEVELOP WITHIN MINUTES ON EXPOSED SKIN,  
ESPECIALLY WITH WIND CHILL.  
 
IF IT'S TOO COLD FOR YOU TO STAY OUTSIDE, IT'S TOO COLD FOR YOUR PET  
TO STAY OUTSIDE.  
 
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 X USING (HASH)ONSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
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