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Flood Warning & Forecasting

Flood Warning & Forecasting

CVC uses real-time stream flow, water level and precipitation information to determine potential flood conditions and to issue warnings for the Credit River Watershed.

CVC uses an easy to identify colour-coded warning system. When flooding is possible or about to occur, CVC also issues flood messages to municipal flood coordinators, emergency services and the media based on the following criteria. Please note that even during normal flow conditions, the risk to personal safety associated with flowing water still exists.

Gauging Colours Table


NORMAL generally indicates low flow to base flow conditions. It should be noted that during Normal flow conditions, the inherent risk to personal safety associated with flowing water still exists.


WATER SAFETY STATEMENT High flows, unsafe banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.


FLOOD OUTLOOK STATEMENT Early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high wind or other conditions that could lead to high runoff, cause ice jams, lakeshore flooding or erosion.


FLOOD WATCH Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individual landowners in flood-prone areas should prepare.


FLOOD WARNING Flooding is imminent or already occurring in specific watercourses or municipalities.

For more information, please contact us at 905-670-1615 during office hours.

View the Flood and Floodproofing Resource list compiled by CVC.

View river and stream water levels in real-time.

Note to Public:  CVC’s role during a flooding event is to monitor current watershed conditions and weather forecasts, predict river and creek conditions, and communicate our findings to the public, municipalities and media.  For more information about this message please call CVC between 8:30 and 4:30 (Monday to Friday) at 905-670-1615 and ask for the Flood Duty Officer.  If you are concerned about high water levels in your area, please contact your municipality. For emergencies requiring police, fire or ambulance, call 9-1-1. 

Note to Municipal, Provincial and Conservation staff:  For more information about this message please call CVC between 8:30 and 4:30 (Monday to Friday) at 905-670-1615 and ask for the Flood Duty Officer.  For after-hours inquiries, please phone our answering service at 1-800-215-8505 whom will forward your message to CVC’s Flood Duty Officer.

Note to media: For more information about this message please call CVC between 8:30 and 4:30 (Monday to Friday) at 905-670-1615 and ask for the Media Information Coordinator.  For after-hours inquiries, please phone our answering service at 1-800-215-8505 whom will forward your message to Media Information Coordinator.

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Data and information released from Credit Valley Conservation (CVC) are provided on an 'AS IS' basis, without warranty of any kind, including without limitation the warranties of merchantability, fitness for a particular purpose and non-infringement.

Availability of this data and information does not constitute scientific publication. Data and/or information may contain errors or be incomplete. CVC and its employees make no representation or warranty, express or implied, including without limitation any warranties of merchantability or fitness for a particular purpose or warranties as to the identity or ownership of data or information, the quality, accuracy or completeness of data or information, or that the use of such data or information will not infringe any patent, intellectual property or proprietary rights of any party. CVC shall not be liable for any claim for any loss, harm, illness or other damage or injury arising from access to or use of data or information, including without limitation any direct, indirect, incidental, exemplary, special or consequential damages, even if advised of the possibility of such damages.

In accordance with scientific standards, appropriate acknowledgment of CVC should be made in any publications or other disclosures concerning data or information made available by CVC.
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