AWCN10 CWTO 121712
WEATHER SUMMARY
FOR ONTARIO AND THE NATIONAL CAPITAL REGION
ISSUED BY ENVIRONMENT CANADA
AT 1:12 P.M. EDT THURSDAY 12 MARCH 2026.

DISCUSSION.

A SERIES OF LOW PRESSURE SYSTEMS TRACKED ACROSS ONTARIO TUESDAY 
NIGHT AND WEDNESDAY, BRINGING MULTIPLE TYPES OF PRECIPITATION ACROSS 
THE PROVINCE. SIGNIFICANT RAINFALL WAS REPORTED OVER PARTS OF 
SOUTHERN ONTARIO. RAIN COMBINED WITH MELTING SNOW AND THE REDUCED 
ABILITY OF THE GROUND TO ABSORB WATER DUE TO SATURATION AND FROZEN 
CONDITIONS IN SOME AREAS RESULTED IN PONDING ON SEVERAL ROADS AND 
LOCALIZED FLOODING. 
ICY AND SLIPPERY CONDITIONS, DOWNED POWER LINES AND BROKEN TREE 
BRANCHES FROM SEVERAL HOURS OF FREEZING RAIN AND ICE PELLETS WERE 
REPORTED ACROSS EASTERN AND CENTRAL ONTARIO. AS OF 9:49 A.M. 
THURSDAY, AN ESTIMATED 31,523 CUSTOMERS WERE WITHOUT POWER. 
SNOW CREATED DIFFICULT TRAVEL CONDITIONS OVER PORTIONS OF 
NORTHEASTERN ONTARIO. 

THE FOLLOWING IS A SUMMARY OF WEATHER INFORMATION RECEIVED BY 
ENVIRONMENT AND CLIMATE CHANGE CANADA. 

1. SUMMARY OF RAINFALL AMOUNTS IN MILLIMETRES: 
LUCKNOW 68.6* 
MOUNT FOREST 60.5 
GODERICH 54.7 
PELEE ISLAND 51.1* 
LAKE DALRYMPLE 47.0* 
BARRIE 40.9 
ROCKLYN 40.1* 
MUSKOKA 40.1 
BANCROFT 37.8 
RIDGETOWN 35.2 
WINDSOR 33.9 
BEATRICE 31.6 
VINELAND STATION 31.5 
PORT WELLER 29.5 
DELHI 29.4 
KING CITY NORTH 29.1 
EGBERT 28.3 
WELLAND-PELHAM 27.6 
BRUSSELS 23.9* 

*DENOTES VOLUNTEER AND COCORAHS OBSERVATIONS 

2. UNOFFICIAL ESTIMATES OF ICE ACCRETION REPORTED BY VOLUNTEERS IN 
MILLIMETRES: 
OTTAWA - GATINEAU AREA 7 
RENFREW-COBDEN AREA 10 

3. LOCATION AND SNOWFALL AMOUNT IN CENTIMETRES: 

SAULT STE- MARIE 9 
SUDBURY 8 
KAPUSKASING 8 
CHAPLEAU 6

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL 
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.

END/OSPC