198  
WWCN11 CWTO 310622  
RAINFALL WARNING  
FOR SOUTHERN ONTARIO  
ISSUED BY ENVIRONMENT CANADA  
AT 2:22 A.M. EDT THURSDAY 31 JULY 2025.  
---------------------------------------------------------------------  
RAINFALL WARNING FOR:  
=NEW= CHATHAM-KENT - RONDEAU PARK  
=NEW= RODNEY - SHEDDEN - WESTERN ELGIN COUNTY.  
 
---------------------------------------------------------------------  
==DISCUSSION==  
 
RAIN AT TIMES HEAVY THIS MORNING.  
 
WHAT:  
LOCAL RAINFALL AMOUNTS NEAR 50 MM.  
 
WHEN:  
ENDING LATE THIS MORNING.  
 
ADDITIONAL INFORMATION:  
A SLOW MOVING AREA OF RAIN HAS SPREAD ACROSS PARTS OF SOUTHWESTERN  
ONTARIO AND WILL CONTINUE THROUGH THE MORNING. RADAR ESTIMATES SHOW  
THAT SOME AREAS HAVE ALREADY RECEIVED NEAR 40 MM OF RAIN.  
 
HEAVY DOWNPOURS CAN CAUSE FLASH FLOODS AND WATER POOLING ON ROADS.  
LOCALIZED FLOODING IN LOW-LYING AREAS IS POSSIBLE.  
 
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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