GRCA Flood Message #8 – Combined Flood Warning and Flood Watch

The Grand River Conservation Authority (GRCA) is maintaining Flood Warning messages for Brant County, Brantford, Six Nations and Haldimand County and issuing a Flood Watch for the remainder of the Grand River watershed.

Weather Conditions

Warm temperatures and rainfall throughout the Grand River watershed beginning Saturday, March 7, 2026, have melted the snowpack and led to ice jams and flooding in some communities. While the risk of ice jams has passed, and river flows are receding, water levels remain very high. Temperatures dropped on Friday, March 13, and an additional 5-10 mm of mixed precipitation was received. Temperatures are forecast to climb briefly beginning on Sunday, March 15 and another 10-15 mm of rain is forecast for Monday, March 16.

Flood Warnings and Flood Watch

Flood warning messages for Brant County, Brantford, Six Nations, and Haldimand County are being maintained.

Flood Warning (Action) Message for Brant County

River flows have receded to Flood Warning Zone 1 on the Grand River from Paris (Penman's Dam) to Onondaga and are declining. Municipal flood coordinators in the County of Brant have been advised to notify affected properties and monitor conditions. Residents are encouraged to refer to the Flooding section of the County of Brant website for information regarding flood warning zones.

Flood Warning (Action) Message for Brantford

River flows have receded to Flood Warning Zone 1 on the Grand River in Brantford and are declining. Municipal flood coordinators in the City of Brantford have been advised to monitor conditions. Residents are encouraged to refer to the Flood Preparedness section of the City of Brantford’s website for information regarding flood warning zones.

Flood Warning (Action) Message for Six Nations

River flows are expected to remain elevated. Municipal flood coordinators in Six Nations have been advised to notify affected properties and monitor conditions.

Flood Warning (Action) Message for Haldimand County

River flows are expected to remain elevated. Municipal flood coordinators in Haldimand County have been advised to notify affected properties and monitor conditions.

Flood Watch for remainder of Grand River watershed

Due to current conditions and forecast precipitation, the GRCA is issuing a Flood Watch for the remainder of the Grand River watershed. The risk of flooding remains, and municipal flood coordinators should remain vigilant.

GRCA Reservoirs

The major reservoirs at Belwood, Conestogo, Guelph, Luther, Woolwich, Laurel, and Shade’s are being used to help reduce the impact of downstream flooding.

Stay safe 

High flows and unstable ice conditions will increase the safety risk around waterbodies throughout the watershed. Banks adjacent to local waterways are very slippery and, when combined with cold, fast-moving water, pose a serious hazard. With the start of the March school break, families are advised to keep children and pets away from all water bodies. The public is encouraged to exercise extreme caution around local waterways and to stay off ice-covered waterbodies, due to unsafe conditions.

River conditions and forecasts are being monitored closely, and any additional flood messages will be issued as needed.

This message will remain in effect until 4 p.m. on Monday, March 16, 2026.

More information

• For more information on flows, weather and reservoir conditions see the River Data section of the GRCA website.
• More information on the flood warning system is available on the GRCA website.
• Receive GRCA flood messages by e-mail by subscribing through the GRCA website.
• Follow GRCA flood messages on X at grca_flood_msg.
• More information about how the GRCA’s role in managing floods is available in the Flooding section of the website.
• Copies of the GRCA’s River Safety Rules booklet is available by contacting the GRCA Administration Centre

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Media contacts:

Lisa Stocco, GRCA Director of Strategic Communications and Environmental Education
Phone 519-621-2763 x2316 | Email lstocco@grandriver.ca

Serena Catania, GRCA Supervisor of Communications and Marketing
Phone 519-621-2763 x2240 | Email scatania@grandriver.ca