The GRCA forecasts floods and issues flood warnings to municipal flood co-ordinators. The co-ordinators then implement their own local flood response plan and assist local residents.
GRCA officials work closely with municipal flood co-ordinators, police, emergency management officials and others to operate, test and improve the flood warning system.
Flood messages are sent to radio stations, televisions stations and newspapers in the Grand River watershed and surrounding regions. Media outlets usually post these messages on their websites.
Members of the public can receive flood messages directly.
A graphic like this at the top of each page on our website shows the current flood status.
The GRCA issues three types of messages.
There are two categories of watershed condition statements:
A flood watch means that flooding is possible. Municipalities and individuals should prepare.
A flood warning means flooding is occurring or is about to occur. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations. The warning may include forecasts of how high the water will rise and the time of the peak.
You may download a Flood Messages Fact Sheet, which includes the above information in a print friendly format.