665  
WWCN12 CWTO 201716  
RAINFALL WARNING  
FOR NORTHERN ONTARIO  
ISSUED BY ENVIRONMENT CANADA  
AT 1:16 P.M. EDT THURSDAY 20 SEPTEMBER 2018.  
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RAINFALL WARNING FOR:  
TIMMINS - COCHRANE - IROQUOIS FALLS  
CHAPLEAU - MISSINAIBI LAKE.  
 
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==DISCUSSION==  
 
RAIN, AT TIMES HEAVY, IS EXPECTED.  
 
RAIN AND POSSIBLE THUNDERSTORMS ARE EXPECTED TO ADVANCE INTO  
NORTHEASTERN ONTARIO THIS EVENING. THE RAIN COULD BE HEAVY AT TIMES  
WITH AMOUNTS NEAR 50 MM EXPECTED OVER THE NORTHERN PORTIONS OF THE  
REGION, NORTH OF CHAPLEAU AND TIMMINS. EMBEDDED THUNDERSTORMS WILL  
LIKELY GIVE TORRENTIAL RAINFALL FROM TIME TO TIME. AS A RESULT,  
AREAS THAT RECEIVE SEVERAL THUNDERSTORMS MAY SEE EVEN HIGHER  
AMOUNTS.  
 
ALTHOUGH RAIN AND POSSIBLE THUNDERSTORMS WILL CONTINUE ON FRIDAY,  
THE BULK OF THE RAIN IS EXPECTED TONIGHT.  
 
HEAVY DOWNPOURS CAN CAUSE FLASH FLOODS AND WATER POOLING ON ROADS.  
LOCALIZED FLOODING IN LOW-LYING AREAS IS POSSIBLE.  
 
RAINFALL WARNINGS ARE ISSUED WHEN SIGNIFICANT RAINFALL IS EXPECTED.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO  
ONSTORM(AT)CANADA.CA OR TWEET REPORTS USING (HASH)ONSTORM.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
 
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