Christine LinesSoraya LemurMichael KirkopoulosEleanor OlszewskiMat SiscoeBilly HammondJulia FaccaOntario CorpsEnvironment and Climate Change CanadaProvincial Emergency Operations CentreMinistry of Municipal Affairs and Housing

Flood-hit Niagara municipalities declare emergencies and call for government help; St. Catharines flooding now continues across the region

Flooding in Niagara municipalities, including St. Catharines and Lincoln, has prompted emergency declarations after over 140 millimeters of rain fell in two storms. Thousands of homes are affected, with local officials calling for government assistance as they exhaust resources to manage the crisis.

The Globe and Mail The Globe and Mail5 August 2026 · 03:04 UTC
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Flooding in the Niagara Region has led to emergency declarations in St. Catharines and Lincoln, with over 140 millimeters of rain falling in just two storms. St. Catharines Mayor Mat Siscoe reported that the city activated a state of emergency after heavy rains overwhelmed sewer systems, causing significant flooding in homes and businesses.2

According to Environment and Climate Change Canada, record-breaking rainfall has hit the area, with close to 100 millimeters recorded on Sunday alone. Mr. Siscoe stated, “I don’t think there’s a single municipality in Ontario that would be able to handle the volume of rain that we’ve gotten in over the course of 10 days.” The flooding has impacted thousands of homes, with Lincoln's chief administrative officer estimating that about 1,500 of the community’s 10,000 houses have been affected.13

Local officials are appealing for government assistance as they exhaust their financial reserves and resources. “We need this garbage out of here because it’s traumatizing to look at,” said resident Billy Hammond, who is dealing with the aftermath of flooding in his home.6

The Ontario government is deploying the Ontario Corps to assist with recovery efforts, while the federal government awaits a formal request for assistance. Julia Facca, a spokesperson for the Ministry of Municipal Affairs and Housing, stated that they are assessing the situation for eligibility under the Disaster Recovery Assistance for Ontarians program.5

Key Insight
“With close to 100 mm falling Sunday and 50 mm on July 27, Mayor Siscoe said no Ontario municipality could handle that 10-day volume. Lincoln's chief administrative officer Michael Kirkopoulos estimates about 1,500 of 10,000 homes were affected; the province is deploying Ontario Corps while Ottawa awaits a formal request.”
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The Globe and MailThe Globe and Mail
“St. Catharines Mayor Mat Siscoe said the city activated a state of emergency on Monday after two recent days of heavy rains overwhelmed municipal sewer systems, backing up water into buildings and homes.”
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