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Flood Forecasting & Warning Centre

Welcome to TRCA’s Flood Forecasting and Warning Centre. The FFW program consists of daily operations by on-call Flood Duty Officers and also the maintenance of flood control infrastructure (including flood control dams and an extensive gauge network). Please click on the links to see highlights of the many initiatives being undertaken by the TRCA Flood Forecasting and Warning program.

Click here for more information on flooding and safety.

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Flood Warning Line: (416) 661-6514

Flood Status: $theCurrentState

$theCurrentState in effect until Sep 03, 2015

Severe thunderstorms for the GTA.




Date:           Thursday September 3, 2015


Time:            6:30 pm


Issued to:    school boards, municipalities, local conservation authorities, local police, emergency services and media


Weather Conditions:

Toronto and Region Conservation advises that Environment Canada has issued a severe thunderstorm warning for some areas of the Greater Toronto Area.  Storms are intense and moving slowly which may bring local rainfall amounts of up to 50mm.


Forecasted rainfall amounts will result in higher than normal water levels and flows. Rivers and streams will be faster flowing, creating unsafe and/or dangerous conditions. The intense rain may cause flooding on roadways and in low-lying areas.


The combination of slippery and unstable banks, and cold water temperatures will create hazardous conditions close to any river, stream or other water bodies.



Please stay away from rivers and streams and exercise caution around all bodies of water. Please alert any children under your care of these dangers and supervise their activities.


This Flood Outlook Watershed Conditions Statement will be in effect through Friday September 4, 2015. TRCA will continue to monitor streams and weather conditions closely. Further flood related messages will be issued as required.  For more information please contact the on-call Flood Duty Officer.


Flood Duty Officer                                         Chief Flood Duty Officer

Alison MacLennan                                         Ryan Ness





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