595  
WWCN11 CWTO 210943  
EXTREME COLD WARNING  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 4:43 A.M. EST TUESDAY 21 JANUARY 2025.  
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EXTREME COLD WARNING FOR:  
WINDSOR - ESSEX - CHATHAM-KENT  
ELGIN  
LONDON - MIDDLESEX  
SIMCOE - DELHI - NORFOLK  
DUNNVILLE - CALEDONIA - HALDIMAND  
OXFORD - BRANT  
CITY OF HAMILTON  
KITCHENER - CAMBRIDGE - REGION OF WATERLOO  
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY.  
 
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==DISCUSSION==  
 
EXTREME COLD THIS MORNING THROUGH WEDNESDAY MORNING.  
 
WHAT:  
WIND CHILL VALUES NEAR MINUS 30.  
 
WHEN:  
THIS MORNING THROUGH WEDNESDAY MORNING.  
 
ADDITIONAL INFORMATION:  
AN ARCTIC AIRMASS IS BRINGING BITTERLY COLD WIND CHILLS TO THE AREA.  
TEMPERATURES ARE EXPECTED TO MODERATE SLIGHTLY TODAY BEFORE BECOMING  
EVEN COLDER TONIGHT. TEMPERATURES WILL MODERATE BY WEDNESDAY  
AFTERNOON.  
 
EXTREME COLD PUTS EVERYONE AT RISK.  
 
WATCH FOR COLD RELATED SYMPTOMS: SHORTNESS OF BREATH, CHEST PAIN,  
MUSCLE PAIN AND WEAKNESS, NUMBNESS AND COLOUR CHANGE IN FINGERS AND  
TOES.  
 
DRESS WARMLY. DRESS IN LAYERS THAT YOU CAN REMOVE IF YOU GET TOO  
WARM. THE OUTER LAYER SHOULD BE WIND RESISTANT.  
 
COVER UP. FROSTBITE CAN DEVELOP WITHIN MINUTES ON EXPOSED SKIN,  
ESPECIALLY WITH WIND CHILL.  
 
CHECK ON OLDER FAMILY, FRIENDS AND NEIGHBOURS.  
 
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 TWEET REPORTS USING (HASH)ONSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
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