879  
AWCN10 CWTO 191749  
WEATHER SUMMARY  
FOR ONTARIO AND THE NATIONAL CAPITAL REGION  
ISSUED BY ENVIRONMENT CANADA  
AT 1:49 P.M. EDT THURSDAY 19 JUNE 2025.  
 
DISCUSSION.  
 
STRONG THUNDERSTORMS IMPACTED PORTIONS OF SOUTHERN ONTARIO ON THE  
AFTERNOON OF JUNE 18TH, 2025. THESE THUNDERSTORMS BROUGHT STRONG  
WIND GUSTS WHICH CAUSED ISOLATED TREE DAMAGE AS WELL AS TORRENTIAL  
RAINFALL WITH LOCALIZED FLOODING IN SOME LOCALES. THE FOLLOWING IS A  
SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY ENVIRONMENT CANADA.  
 
THE FOLLOWING ARE RAINFALL REPORTS IN MILLIMETRES RECEIVED BY  
ENVIRONMENT AND CLIMATE CHANGE CANADA AS OF 8 A.M. THIS MORNING.  
 
* DENOTES COCORAHS VOLUNTEER OBSERVATION  
^ DENOTES CONSERVATION AUTHORITY  
 
MONKTON 80.5*  
HARROW 53.3*  
CHATHAM 49.3*  
DORCHESTER 47*  
RIDGETOWN 44.6  
BRANTFORD AIRPORT 43  
WOODSTOCK 42.4*  
COURTRIGH 41.4*  
TILBURY 40.6*  
WINDSOR 39.9*  
RANNOCH 39.6  
BINBROOK 38.2^  
LUCKNOW 37.6  
HARROW 37.3  
HAMILTON AIRPORT 36.2  
CAMBRIDGE 35.8^  
 
THE FOLLOWING ARE RADAR ESTIMATE RAINFALL AMOUNTS IN MILLIMETRES.  
 
SIX NATIONS FIRST NATIONS COMMUNITY 125  
 
PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL  
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.  
 
END/OSPC  
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