Flood and Erosion Notices

Province wide, conservation authorities are the lead flood forecasting, warning and prevention agencies. As part of this work, the HCA operates dams at the Christie Lake and Valens Conservation Areas, and manages natural flood-control areas such as wetlands and floodplains. These services play an integral role in the protection of infrastructure, industry, property and natural lands. Click here to learn more about our dams.

This page provides the latest flood, erosion and ice danger notices issued by the HCA for the Hamilton watershed. These advisories are forwarded to the media, school boards, fire and emergency crews, and municipal officials. They are also posted on this web page.

Read Conservation Ontario Flood Fact Sheet

Below is description of the type of flood and erosion alerts issued by the Hamilton Conservation Authority. For more information on the HCA's flood control and water management activities, please see "What We Do".

A FLOOD or SHORELINE FLOOD and EROSION ALERT is an advisory bulletin issued when watershed conditions and/or atmospheric forecasts indicate that there is a potential for flooding and/or erosion to occur in the near future.

A FLOOD or SHORELINE FLOOD and EROSION WARNING is an advisory bulletin issued when watershed conditions and/or atmospheric conditions exist such that significant flooding and/or erosion is occurring and/or is highly probable.

An INFORMATION BULLETIN is issued to municipalities to inform them of forecast weather events which may lead to localized problems involving flooding or erosion