Flood Warnings

Current Status

Current Flood Status
No Flooding Watershed Conditions Statement Flood Watch Flood Warning

May 17th, 2019

This notice is intended to update the public and local municipalities of the status of Lake Erie and Lake Ontario conditions within the Niagara Peninsula and the eastern portions of the City of Hamilton and Haldimand County.


Currently the static (calm) water levels on Lake Erie are continuing to set records and are still on the rise. Lake Erie’s current static water level is 175.05m. This water level is 74cm above average and 11cm above the record-high set during May of 1986. This level does not account for any increase in water levels due to storm surge or wind driven waves. Water levels are forecast to peak in early June at which time water levels are anticipated to start the seasonal decline. Stakeholders with interests along Lake Erie should pay close attention to any weather systems that generate strong sustained West to Southwest winds as the resulting storm surge could result in erosion due to damaging waves and localized flooding.


Currently Lake Ontario’s water levels are still rising due to record flows from Lake Erie and the sustained flooding occurring in the St. Lawrence River. Water levels are anticipated to continue to rise over the coming week. As of May 15th, the static (calm) water levels were at 75.71m which is 68cm above average for this time of year and 14cm below the record high levels set on May 25th, 2017. The International Lake Ontario - St. Lawrence River Board forecasts’ a 50% chance that levels could reach the levels seen in 2017 within the next two weeks. These static water levels do not account for storm surge and wind driven waves. Stakeholders with interests along Lake Ontario shoreline should pay close attention to weather systems that bring sustained winds from the East to Northeast as the resulting storm surge could result in erosion due to damaging waves and localized flooding.

The NPCA is continuing to monitor the situation closely and will provide updates as required.

Information on the Flood Status in the watershed and water levels within local watercourses can be found on the NPCA’s website at:



This notice is in effect until noon Friday, May 24th, 2019 at which time it will be updated.

For further information, contact:

Ryan Kitchen
Water Resources Technician
Work: 905-788-3135 x 269
After hours: 905-658-1838

What if a Flood Message is Issued for Your Area?

Take heed of the message issued.

Be prepared to follow the advice and instructions of emergency response officials.

Monitoring weather and flood conditions is a shared responsibility of Conservation Authorities, OMNR, and Environment Canada. The OMNR Surface Water Monitoring Centre in Peterborough monitors weather forecasts and water levels across the province, providing the information to Conservation Authorities. Other information is also available from Environment Canada.

Conservation Authorities and the Ontario Ministry of Natural Resources are responsible for forecasting where and when flooding is likely to occur and issuing appropriate messages. Advance warning of an impending flood allows municipalities and other government agencies to put emergency response plans into operation, and if necessary, evacuate communities.

When flooding is possible or about to occur, Conservation Authorities (or the Ministry of Natural Resources in areas where there is no Conservation Authority) issue flood messages to municipal emergency management officials and the media. The municipal officials then take action to warn local residents. Flood messages are posted on Conservation Authorities’ websites. In some watersheds, members of the public can receive flood messages directly through e-mail and/or Twitter.

Messages Key
No Flooding - No Flooding

No flood conditions exist

Watershed Conditions Statement - Awareness

Be informed and aware.

  • Water Safety Statements —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 Statements — 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 - Flood Watch

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

Flood Warning - Flood Warning

Flooding is imminent or already occurring in specific watercourses or municipalities. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations.