738  
WWCN11 CWTO 200537  
RAINFALL WARNING  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 1:37 A.M. EDT FRIDAY 20 JUNE 2025.  
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RAINFALL WARNING FOR:  
DEEP RIVER - WHITNEY - EASTERN ALGONQUIN PARK.  
 
RAINFALL WARNING ENDED FOR:  
WESTERN ALGONQUIN PARK - LAKE OF TWO RIVERS.  
 
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==DISCUSSION==  
 
HEAVY RAINFALL ENDING TONIGHT.  
 
WHAT:  
LOCAL TOTAL RAINFALL AMOUNTS OF 40 TO 60 MM.  
 
WHEN:  
ENDING AFTER MIDNIGHT.  
 
FOR INFORMATION CONCERNING FLOODING, PLEASE CONSULT YOUR LOCAL  
CONSERVATION AUTHORITY OR ONTARIO MINISTRY OF NATURAL RESOURCES  
OFFICE. VISIT ONTARIO.CA/FLOODS FOR THE LATEST DETAILS.  
 
HEAVY DOWNPOURS CAN CAUSE FLASH FLOODS AND WATER POOLING ON ROADS.  
IF VISIBILITY IS REDUCED WHILE DRIVING, SLOW DOWN, WATCH FOR TAIL  
LIGHTS AHEAD AND BE PREPARED TO STOP. 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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