720  
AWCN10 CWUL 181436  
WEATHER SUMMARY  
FOR QUEBEC  
ISSUED BY ENVIRONMENT CANADA  
AT 10:36 A.M. EDT FRIDAY 18 JULY 2025.  
 
DISCUSSION.  
 
YESTERDAY, JULY 17, SEVERE THUNDERSTORMS AFFECTED SOUTHERN AND  
CENTRAL QUEBEC, CAUSING STRONG WIND GUSTS AND HEAVY DOWNPOURS.  
 
NEAR MIDDAY, A BAND OF THUNDERSTORMS PRODUCED UP TO 75 MILLIMETRES  
OF RAIN IN LESS THAN TWO HOURS OVER THE CAPITALE-NATIONALE,  
PARTICULARLY IN THE SAINTE-FOY AREA AND OVER LEVIS. THE  
PRECIPITATION RATE LEAD TO FLASH FLOODS, FLOODING MANY STREETS AND  
HOMES IN THESE AREAS.  
 
IN ADDITION, THE STRONG WINDS ASSOCIATED TO THESE STORMS CAUSED  
DAMAGES TO TREES AND NUMEROUS POWER OUTAGES, ESPECIALLY IN THE  
MONTEREGIE REGION. WIND GUSTS UP TO 89 KM/H WERE OBSERVED AT THE  
SAINT-HUBERT AIRPORT NEAR 3:20 P.M.  
 
ALSO YESTERDAY, RAIN ASSOCIATED WITH A WARM FRONT CROSSED THE  
REGIONS FROM ABITIBI TO THE NORTH SHORE. SIGNIFICANT RAINFALL  
AMOUNTS OF 40 TO 80 MILLIMETRES FELL WITH THIS SYSTEM.  
 
THE FOLLOWING IS A SUMMARY OF THE METEOROLOGICAL DATA RECEIVED BY  
ENVIRONMENT CANADA AS OF JULY 18 AT 10:00 A.M.  
 
SUMMARY OF RAINFALL AMOUNTS (IN MILLIMETRES):  
 
QUEBEC CITY (JEAN LESAGE): 38  
SAINTE-FOY (CHARLES-GARNIER COLLEGE): 87  
CHARNY (LEVIS): 93  
BEAUPORT: 55  
ACTON VALE: 53  
DRUMMONDVILLE: 55  
THETFORD MINES: 56  
BEAUCEVILLE: 40  
 
VAL D'OR: 51  
BARRAGE TEMISCAMINGUE: 40  
BAGOTVILLE: 37.5  
SEPT-ILES (POINTE-NOIRE): 54  
PORT-MENIER (ANTICOSTI) 44  
HAVRE-SAINT-PIERRE: 58  
NATASHQUAN: 43  
 
PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL  
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.  
 
END/QSPC  
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